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Author |
Subject |
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Tue Apr 16 12:24:01 2024 |
Emmanuel | MWD amplitude (dE and E) |
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| Attachment 1: 26Al_PDF.pdf
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73
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Mon Mar 25 12:57:30 2024 |
Clw | Adapters for ntof setup |
10 new Adapters for lemo to bnc on my desk |
| Attachment 1: 20240325_125536.jpg
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| Attachment 2: 20240325_125528.jpg
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72
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Thu Dec 7 09:48:23 2023 |
Emmanuel | MWDdetector and User Input |
MWDdetector and UserInput |
| Attachment 1: UserInput_Silicons.h
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DETECTOR SPECIFIC PARAMETERS (Lines may be commented with '#' sign!)
===================================================================================================================================================================================================================================
DETECTOR DETECTOR DETECTOR STEP TIMING MIXED EXPAND SMOOTHING TIME G-FLASH G-FLASH G-FLASH G-FLASH BASELINE BASELINE AMPLITUDE AMPLITUDE AREA/AMP. AREA/AMP. SIGNAL WIDTH SIGNAL WIDTH NUMBER OF PULSE SHAPE
NAME NUMBER CLASS SIZE FILTER POLARITY PULSES FILTER LIMIT OPTION THRESHOLD MIN_WIDTH WINDOW OPTION FILTER OPTION THRESHOLD LOW THR. HIGH THR. LOW THR. HIGH THR. PULSE SHAPES ADDRESS
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PKUP 0 PSA 350/6 0 0 3 100 100000 0 100. 1. 0 -1 300 0 100 0.0 2000 1 4000 0
#################################
# MWD PARAMETERS V6.2 #
# Date: 10-Aug-2023 #
#################################
#################################
# Threshold Polarity PoleZeroCorr DeconWindow AvergWin MAWindows gain/offset Gamma_Threshold Amp_Threshold fixed Dead time(ns) time_diff_baselne tailtime time_const
EDET 1 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 2 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 3 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 4 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 5 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 6 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 7 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 8 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 9 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 10 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 11 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 12 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 13 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 14 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 15 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 16 MWD 1600 -1 5E5 150 40 1 60 16.0/0.0 100 6500 550 1500 2 20
EDET 17 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 18 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 19 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 20 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 21 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 22 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 23 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 24 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 25 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 26 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 27 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 28 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 29 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 30 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 31 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
EDET 32 MWD 800 1 5E5 150 40 1 60 16.0/0.0 100 6800 550 1500 2 20
DEED 1 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 2 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 3 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 4 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 5 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 6 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 7 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 8 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 9 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 10 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 11 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 12 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 13 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 14 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 15 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
DEED 16 MWD 30 -1 5E5 150 40 1 51 1.0/0.0 100 200 550 1500 2 20
|
| Attachment 2: MWDdetector.cc
|
/*
* $Id$
*
* Author: Sarah-Jane Lonsdale
* Date: 02-Dec-2015
* Version: 5.1 (8-Aug-2017)
* Update: Claudia Lederer-Woods
* Date: 31-May-2018
* Version: 6.0 (31-May-2018)
* Update: Nikolay Sosnin
* Date: 24-Nov-2022
* Version: 6.1 (24-Nov-2022)
*/
#include <math.h>
#include <string.h>
#include <iostream>
#include <iomanip>
#include <cmath>
#include <fstream>
#include <sstream>
#include <algorithm>
#include <vector>
#include <TFile.h>
#include <TH1F.h>
#include <TString.h>
using namespace std;
#include "MWDdetector.h"
void FormatHist(TH1D* h, TString name, TString title, TString xtitle, TString ytitle, int color, int width, int marker_color, int marker_style);
bool MWDDetector::parseConfigLine(char* line, const char* settings_file)
{
cout << "Config: " << line << endl;
if (!Detector::parseConfigLine(line)) return false;
// threshold
char* pch = strtok(NULL," ");
if (!pch) {
cerr << "UserInput: Invalid Threshold" << endl;
return false;
}
threshold = atof(pch);
// polarity
pch = strtok(NULL," ");
if (!pch) {
cerr << "UserInput: Invalid negative polarity" << endl;
return false;
}
polarity = atoi(pch);
if (polarity>=0)
polarity = 1;
else
polarity = -1;
// pole zero correction
pch = strtok(NULL," ");
if (!pch) {
cerr << "UserInput: Invalid pole zero correction" << endl;
return false;
}
pz = atof(pch);
// deconvolution window
pch = strtok(NULL," ");
if (!pch) {
cerr << "UserInput: Invalid deconvolution window" << endl;
return false;
}
m = atoi(pch);
// average window
pch = strtok(NULL," ");
if (!pch) {
cerr << "UserInput: Invalid average window" << endl;
return false;
}
l = atoi(pch);
// presample
pch = strtok(NULL," "); //NS: 27.07.2023
if (!pch) {
cerr << "UserInput: Invalid presample" << endl;
return false;
}
presample = atoi(pch);
//averaging windows 2
pch = strtok(NULL," "); //NS: 27.07.2023
if (!pch) {
cerr << "UserInput: Invalid presample" << endl;
return false;
}
window = atoi(pch);
// presample/averaging window 2
/*if (!parse2real(&presample, &window)) {
cerr << "UserInput: Invalid averager 1/2" << endl;
return false;
}*/
// gain/offset
if (!parse2real(&gain, &offset)) {
cerr << "UserInput: Invalid gain/offset" << endl;
return false;
}
// gamma flash search start
pch = strtok(NULL," ");
if (!pch) {
cerr << "UserInput: Invalid gamma_threshold" << endl;
return false;
}
g_threshold = atoi(pch);
// minimum amp_threshold
pch = strtok(NULL," ");
if (!pch) {
cerr << "UserInput: Invalid amp_threshold" << endl;
return false;
}
amp_threshold = atoi(pch);
// gamma flash primary (additional) offset
pch = strtok(NULL," ");
if (!pch) {
cerr << "UserInput: Invalid fixed Dead time(ns)" << endl;
return false;
}
gamma_time_primary = atoi(pch);//SL 08/07/17
// time different for baseline determination
pch = strtok(NULL," ");
if (!pch) {
cerr << "UserInput: time_diff_baselne" << endl;
return false;
}
time_diff_baseline = atoi(pch);//SL 08/07/17
// time after g flash which has undershoot
pch = strtok(NULL," ");
if (!pch) {
cerr << "UserInput: tailtime" << endl;
return false;
}
tailtime = atoi(pch);//SL 08/07/17
// Time constant
pch = strtok(NULL," ");
if (!pch) {
cerr << "UserInput: time_const" << endl;
return false;
}
time_const = atoi(pch); // 28/08/23
return true;
} // parseConfigLine
int MWDDetector::analysis(
ntof::lib::ReaderStructEVEH& eveh, // EVEH event information
ntof::lib::ReaderStructMODH& modh, // MODH header information
ntof::lib::ReaderStructACQC& acqc, // ACQC pulse record
PulseVector* pulsevec, // vector of pulses
int movie_number,
bool html) // I: movie number
{
Detector::analysis(eveh, modh, acqc, pulsevec, movie_number, html);
double rate = modh.getSampleRate();
int NofPeaks = 0;
TString name = modh.getDetectorType();
//double g_threshold = 2000; //move to .h file //CHANGED
double tdiffsig = gamma_time_primary;
double tdiffbase = time_diff_baseline; // consider moving to h file
int aver = presample; //
//double tailtime = 100000; // time up to which there is an undershoot after gflash
double* x = new double[length_of_movie];
double* xsmooth = new double[length_of_movie]; //13.3.18
double* xsmooth_ma = new double[length_of_movie]; //NS 22.05.2023
double* y = new double[length_of_movie];
double* z = new double[length_of_movie];
double* zdiff = new double[length_of_movie]; //13.3.18
double* mwd_m = new double[length_of_movie];
double* ma_l = new double[length_of_movie]; // moving average array
double* mwd_deriv = new double[length_of_movie]; // mwd derivative
double timeScale = 1000.0 / rate; // in ns/Sample
for(int i = 0; i < length_of_movie; i++){
x[i] = polarity * (acqc[i] * gain + offset);
y[i] = z[i] = zdiff[i] = xsmooth[i] = 0.0; //13.3.18
}
//CHANGED
int startofevent = aver / 2;
//Averaging preamplifier output
for(int i = startofevent; i < length_of_movie; i++){
xsmooth[i] = 0.;
for(int j = -1 * (aver - 1) / 2; j <= (aver - 1) / 2; j++){
xsmooth[i] += x[i + j];
}
xsmooth[i] /= aver;
}
//Extra moving average test
//const double window = 39.;
int startofevent2 = window / 2; //NS 22.05.2023
for(int i = startofevent2; i < length_of_movie; i++){
xsmooth_ma[i] = 0.;
for(int j = -1 * (window - 1) / 2; j <= (window - 1) / 2; j++){
xsmooth_ma[i] += xsmooth[i + j];
}
xsmooth_ma[i] /= window;
}
// Locating maximum and minimum of derivative
if(verbose){cout << "Begin amplitude extraction." << endl;}
// Parameters for semi-gauss discriminator
//const double time_const = 0; // SL 12/08/16 Emmanuel
const double pole_zero = 5.e5;
double a0, a1, b1;
b1 = exp(-1. / int(time_const));
a0 = (1. + b1) / 2.0;
a1 = -1. * (1. + b1) / 2.0;
// Single pole high pass with pz correction
for(int i = 1; i < length_of_movie; i++){
//y[i] = b1 * y[i - 1] + a0 * xsmooth[i] + a1 * xsmooth[i - 1] + xsmooth[i - 1] / pole_zero;
y[i] = b1 * y[i - 1] + a0 * xsmooth_ma[i] + a1 * xsmooth_ma[i - 1] + xsmooth_ma[i - 1] / pz;
}
// Single pole low pass filter
for(int i = 1; i < length_of_movie; i++){
z[i] = b1 * z[i - 1] + a0 * y[i];
}
// devirative of filters
for(int i = 1; i < length_of_movie; i++){
zdiff[i] = -1. * z[i - 1] + z[i];
}
//bool beamType = false;
//if(eveh.getBeamType() != 1){beamType = true;}
double twait = 16000.; // introduce different time window for baseline depending on ded or par CLW 31/05/18
/*if(eveh.getBeamType() == 2){twait = 13000.;} // dedicated
if(eveh.getBeamType() == 3){twait = 19000.;} // parasitic
else{twait = 16000.;}*/
////////////////////////////////////////
// MWD and filtering //
////////////////////////////////////////
// moving window deconvolution
for(int i = startofevent + m; i < length_of_movie; i++){ // SL 10/08/16 // 13/03/18 MWD on smoothed
//double d_m = xsmooth[i] - xsmooth[i - m];
double d_m = xsmooth_ma[i] - xsmooth_ma[i - m];
double ma_m = 0.;
for(int j = (i - m); j < (i - 1); j++) {
//ma_m += xsmooth[j];
ma_m += xsmooth_ma[j];
}
mwd_m[i] = d_m + ma_m / pz;
}
// moving average
//for(int i = l + m + gamma_flash; i < length_of_movie; i++){ // SL 10/08/16
for(int i = l + m; i < length_of_movie; i++){ // NS 31.07.2023
ma_l[i] = 0.;
... 285 more lines ...
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Mon Oct 2 08:53:06 2023 |
Emmanuel | Empty Frame |
An empty frame (on the top) was placed on Friday night. |
| Attachment 1: Empty_Frame.jpeg
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70
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Thu Sep 28 15:32:16 2023 |
Emmanuel | LiF sample in |
We switched from 10B target (number 1) to LiF target (number 3). We planned to take this measurement for one day. |
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69
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Wed Sep 27 09:54:06 2023 |
Emmanuel | 10B sample in |
We switched from Aluminium target to Boron Target (number 1) on Tuesday (26th of Sept.). The Aluminium target was placed in the material room by the RP. We will change to LiF (number 3) on Thursday (28th of Sept.) |
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Tue Sep 5 16:09:45 2023 |
Emmanuel | Drop in gain for DEED 14 |
Dear all,
There was an issue with one of the strips of the deltaE detector (DEED 14), for run216644. The gain dropped to almost a factor of 3. Find attached.
Somehow, it was fixed, but still lags, when compared to other strips of deltaE. This was tested for a more recent run, run216651. Find attached.
I also checked a bit older run (run216637) and they look similar.. Find attached. Maybe we should figure out if this will be a problem for the DEED14 strips.
NOTE: The plots have the run number at the top-center.
Emmanuel Odusina
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| Attachment 1: alndeed14.png
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| Attachment 2: alndeed14b.png
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| Attachment 3: alndeed14old.png
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67
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Mon Aug 21 12:08:59 2023 |
TD | RAL108 +/-15V PSU test - JCMB 21.8.23 |
PSU Calex
Setup, PSU and ac mains filter - attachments 1-3
DSO ch#1 +15V AC/1M, ch#2 -15V AC/1M - y: 50mV/div x: 100ns, 200ns, 1us, 2us, 10us/div
Without ac mains filter - attachments 4-8
DSO ch#1 +15V AC/1M, ch#2 -15V AC/1M - y: 10mV/div x: 100ns, 200ns, 1us, 2us, 10us/div
With ac mains filter - attachments 9-13
Conclusion - Claud Lyons Ltd STF Series Surge & Transient Power Filter produces c. x 2 attenuation of HF noise transients |
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66
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Sat Aug 19 14:14:26 2023 |
TD | RAL108 +/-15V PSU test - JCMB 18.8.23 |
PSU Calex
Setup and PSU details - attachments 1-3
DSO ch#1 +15V AC/1M, ch#2 -15V AC/1M - y: 20mV/div x: 100ns, 200ns, 1us, 2us, 10us, 20us & 100us/div - attachments 4-10 |
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Thu Aug 17 10:26:51 2023 |
Nikolay Sosnin | Data Processing |
To run raw2root on LXPLUS, you will need to add the following line to your .bashrc, performed using
gedit ~/.bashrc &
then paste line at the bottome of the file
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/afs/cern.ch/user/n/ntofuser/public
then save and close the gedit (a linux text editor similar to Windows Notepad). Text file .bashrc is responsible for setting correct paths to various system settings when you log in. The line above sets correct libraries for raw2root from the n_TOF official directories.
The old version of raw2root which I use is stored in a directory on EOS accessible via LXPLUS:
cd /eos/home-n/nsosnin/public/raw2root
If you examine the contents of the directory using command ls, there will be two folders: ntoflib and prg. The relative location of these folders on your system should always be the same, and you do not need to do anything in the ntoflib directory, so we can explore the next directory
cd prg && ls
Command cd means change directory and ls is list contents, double-& chains commands in a sequence. Your terminal should now display two more directories: detector and raw2root. detector is a list of codes for various detector types, examine its contents with ls detector. We use MWDdetector.cc and its library header file MWDdetector.h. All the filters are defined and can be changed in MWDdetector.cc, which is a C++ code. You can browse and change its contents with gedit. raw2root codes, however, are run from the raw2root directory, so let's change to it
cd raw2root && ls
When you list the contents of this directory there will be many files, none of which you need to edit. There will also be a directory called Traces, which I created as the default location for signal traces to be written, if relevant sections of MWDdetector.cc are uncommented (discussed below). If you are happy with the contents of MWDdetector.cc, you need to re-compile raw2root. Using C++ code, unlike some others, is a two-step process: compilation and execution. Various bits of code in raw2root and its libraries are put together into one executable file called raw2root during compilation stage, and then the code can be run by executing the executable. To compile raw2root, you need to be in its directory, which you can check by typing in
pwd
which should then display /eos/home-n/nsosnin/public/raw2root/prg/raw2root and if you it displays something else, use
cd /eos/home-n/nsosnin/public/raw2root/prg/raw2root
To compile raw2root in this directory use
make clean && make proper && make
The code will start compiling and do so for a while. It will display some warnings associated with other older n_TOF codes. There should, however, be no errors. If there are errors, something went wrong in MWDdetector.cc, so try troubleshooting it by Googling the errors (the line with the error will also display two numbers, something like error: MWDdetector.cc:1211:45, and the the second number is the line where the problem occurred). C++ errors are a dark art though, so feel free to contact me for help.
If the compilation displays no errors (woo!), the code compiled successfully. To test it, two things are needed: UserInput file and .raw.finished file. UserInput file called UserInput_Silicons.h, which I use, is already stored in that directory. If you examine it with gedit, you will see lines with detector names and numbers and the filtering parameters. The parameters are read in at the top of MWDdetector.cc in order, so you can follow the variables they are read into throughout the code to figure out which parameter does what (this is not an easy task!).
.raw.finished files are binary data files with detector signal traces, which raw2root filters and makes into ROOT files. These need to be downloaded from CERN servers (I left two example ones in the directory though). While the experiment is running these are stored, but will eventually be deleted, so if they don't download, contact me on staging data (i.e. writing it onto servers again after deletion). To download such a binary file for this experiment to the directory you are in use
xrdcp xroot://eosctapublicdisk.cern.ch//eos/ctapublicdisk/archive/ntof/2023/EAR2/26Al_DSSSD/216408/stream1/run216408_1_s1.raw.finished .
Here, xrdcp command is CERN's own copying command, which takes data from the directory listed in the command. I have highlighted above in yellow the bits you may need to change in the command. The first two are simply run number. The last one is the data segment. n_TOF data within a run are subdivided into 20 proton bunch segments, so one such .raw.finished file that you download contains 20 bunches (which is a very small amount of data, so if you need mass_processing, contact me or Fran (francisco.garcia.infantes@cern.ch) at n_TOF). You can download different segments by changing this number. Bunches 1-20 are in segment 0, bunches 21-40 in segment 1, etc.
Once you have downloaded the file of interest execute raw2root with command
./raw2root -p UserInput_Silicons.h -f run216408_1_s1.raw.finished -r rootout.root
This will run for some time, applying settings from UserInput to filters in MWDdetector.cc, and running the filters over data in the .raw.finished file. This will produce an output file called rootout.root, but feel free to change the name in the command to whatever you like, otherwise you will just keep overwriting the old files. This output file will have the amplitudes, times etc. of all the extracted signals listed, but it will not produce traces, as that is not standard raw2root functionality, and requires my code, which I added to MWDdetector.cc
To print traces, open MWDdetector.cc using
gedit ../detector/MWDdetector.cc &
Note, ".." on Linux means "previous directory", so the command above will leave raw2root directory, go to detector directory and open the code. In this code, uncomment (i.e. remove // or /* or */ characters in C++) from lines 310-312, 441, 442, 465 and 529. This will now print trace ROOT files into the Traces directory. Warning: this runs very slowly, as it's a lot of data being written to disk!
The if() statment on line 465 allows you to gate on specific bunches and detectors for producing traces. The contents of histograms inside the output files can be understood in terms of what MWDdetector.cc does by reading the lines 514-522 of that code. This should be everything you need to get started with processing traces and filtering outputs. Good luck! |
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Tue Aug 15 11:41:27 2023 |
TD, NS | Monday 14 August - vacuum chamber pressure |
08.35 Vacuum chamber pressure OK - see attachment 1 |
| Attachment 1: 20230814_083514.jpg
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63
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Tue Aug 15 10:17:39 2023 |
TD, NS | RAL108 +/-15V PSU test at EAR2, n_TOF Monday 14 August |
On the morning of Monday 14 August 2x RAL108 +/-15V PSUs were borrowed from the Edinburgh equipment in the ISOLDE hall to check whether the same transient
noise is observed at the +/-15V PSU outputs.
PSU #2 Farnell MX2
Setup - attachment 1
DSO ch#1 +15V AC/1M, ch#2 -15V AC/1M - y: 50mV/div x: 1us, 500ns, 250ns & 25us/div - attachments 2-5
PSU #1 Coutant HSC15-3.0
Setup - attachment 6
DSO ch#1 +15V AC/1M, ch#2 -15V AC/1M - y: 50mV/div x: 25us/div - attachment 7
Conclusion
Observe same amplitude and HF structure with all 3x RAL108 +/-15V PSUs |
| Attachment 1: 20230814_083448.jpg
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| Attachment 2: 20230814_083549.jpg
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| Attachment 3: 20230814_083556.jpg
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| Attachment 4: 20230814_083601.jpg
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| Attachment 5: 20230814_083445.jpg
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| Attachment 6: 20230814_083323.jpg
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| Attachment 7: 20230814_083319.jpg
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62
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Mon Aug 14 11:00:13 2023 |
TD | RAL108 +/-15V PSU test in ISOLDE hall |
This morning 2x RAL108 +/-15V PSUs were borrowed from the Edinburgh equipment in the ISOLDE hall to check whether the same transient noise is observed at the +/-15V PSU
outputs - this was confirmed. See https://elog.ph.ed.ac.uk/nToF/63
Following this test the same 2x RAL108 +/-15V PSUs were tested in the ISOLDE hall ( 19" rack adjacent to the HIE-ISOLDE GP scattering chamber ).
PSU #1 Coutant HSC15-3.0
Setup and PSU details - attachments 1-4
DSO ch#1 +15V AC/1M, ch#2 -15V AC/1M - y: 5mV/div x: 400ns, 4us & 40us/div - attachments 5-7
PSU #2 Farnell MX2
Setup and PSU details - attachments 8-10
DSO ch#1 +15V AC/1M, ch#2 -15V AC/1M - y: 5mV/div x: 400ns, 4us & 40us/div - attachments 11-13
Conclusion
The noise of the 2x RAL108 +/-15V PSUs differed somewhat ( frequency and structure of HF transients ) from each other in the ISOLDE test.
Compared to the EAR2, n_TOF test the amplitudes were c. 10x smaller and the HF transient frequency and structure differed.
This appears to confirm that the primary problem is the ac mains power in EAR2, n_TOF - input and/or output filtering is required. |
| Attachment 1: 20230814_110402.jpg
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| Attachment 2: 20230814_111029.jpg
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| Attachment 3: 20230814_111128.jpg
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| Attachment 4: 20230814_111216.jpg
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| Attachment 5: 20230814_110410.jpg
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| Attachment 6: 20230814_110424.jpg
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| Attachment 7: 20230814_110516.jpg
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| Attachment 8: 20230814_110053.jpg
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| Attachment 9: 20230814_110723.jpg
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| Attachment 10: 20230814_110738.jpg
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| Attachment 11: 20230814_110158.jpg
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| Attachment 12: 20230814_110142.jpg
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| Attachment 13: 20230814_110105.jpg
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61
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Sat Aug 12 09:24:19 2023 |
Nikolay Sosnin | 26Al Protons |
Here is a Google spreadsheet for counting protons for the runs:
https://docs.google.com/spreadsheets/d/1INX8G9GAu-M70SdZdz55qXnMZNXKXLW7xfFH-eaLuQw/edit?usp=sharing |
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60
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Fri Aug 11 16:50:58 2023 |
Nikolay Sosnin | EDET24 |
After inserting aluminium target, previously-dead channel 24 on EDET was re-plugged into a 12-bit card SPD02872. It is the only EDET on 12-bit card, the rest are on 14-bit. From pulsers, there appears to be a 90 ns offset from this EDET to others, with EDET24 preceeding the rest. The last channel on 14-bit cards was broken, hence havng to use 12-bit. |
| Attachment 1: EDET24_Card.JPG
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| Attachment 2: EDET24_Cable.JPG
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59
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Fri Aug 11 13:16:56 2023 |
Nikolay Sosnin | E Front Incorrect Cabling |
E front 2x16-way to 1x34-way IDC cable from the Junction Box to the IDC-Lemo 00 adaptor was found to be inserted upside-down - the 16-way IDC connectors did not have polarisation keys - meaning the E detector p+n junction strip signals collected with 26Al for the first night are not working. Signals from the dE p+n junction strips and E n+n Ohmic strips will be OK. The mistake occurred at the conclusion of the noise tests yesterday - see https://elog.ph.ed.ac.uk/nToF/52
The 2x16-way to 1x34-way IDC cable without polarisation keys has now been replaced.
Run 216417 and onwards have correct cabling. For runs before that, E back and dE are still reliable. |
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58
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Fri Aug 11 13:06:54 2023 |
Annie | Signal Spreadsheet info |
Spreadhseet made for shifters to manually enter that they have checked each signal and that they can see gamma-flashes. It is saved as "26Al_EAR2_Signal_Checks.ods", it is located on the second monitor on the right of the control room, next to the monitor used to see the beam intensity (same monitor used to see signals).
It will stay open throughout the campeign. Shifters have been told to check signals more than just the once to record that they're okay, and there is a comments box for shifters to add any comments/issues that arises after they have recorde that they have checked the signals at least once. |
| Attachment 1: IMG_2920.JPG
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| Attachment 2: IMG_2921.JPG
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| Attachment 3: IMG_2922.JPG
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57
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Fri Aug 11 10:12:02 2023 |
Annie | Pressure, voltage and current check |
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| Attachment 1: IMG_2915.JPG
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| Attachment 2: IMG_2916.JPG
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| Attachment 3: IMG_2918.JPG
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56
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Fri Aug 11 10:02:08 2023 |
TD, NS, AR | Noise |
Check RAL108 +/-15V PSU
Measured output voltages +15.21V -15.18V - OK
Observe output voltages with DSO ( ch #1 AC/1M +15V, ch #2 AC/1M -15V ) - see attachments 1 & 2
What we should observe is c. 1mV rms ( white ) noise but we clearly observe similar noise transients ( c. 60us period with HF structure ) to those observed at RAL108
outputs. The RAL108 preamplifier units do have RC filters on the +/-15V - typically c. 100 Ohm and 4.7uF. Some additional, inline filtering with a lower rolloff
frequency may be required.
>
> Observe c. 2mV p to p noise with DSO ( Z_in = 50 Ohm ) c. 60us period with HF structure. DSO connected to junction box via 34-way IDC - 16x Lemo-00 adaptor.
>
> Origin of noise upstream of 4x34-way to 8x16-way Junction Box. Not microphonics from Edwards RV5 Rotary Pump.
> No change observed with simple ground connections between NIM bin/+/-15V PSU/Junction Box and MSL type W1 preamplifier units/vacuum chamber/support assembly.
>
>
> Estimate of electronic noise
>
> Pulser BNC PB-5
>
> Amplitude 0.5V
> Attenuation x1
> Decay time 1ms
> Frequency 50Hz
>
> Preamplifier RAL108
> Output impedance 100 Ohm
> Sensitivity 20mV/MeV ( into high Z load ), 6.7mV/MeV ( into 50 Ohm load )
>
> Amplifier EG&G Ortec 571
> Input terminated by 50 Ohm
> Gain x1 (internal) x 1.0 (fine gain) x 50 (coarse gain ) = 50
> Shaping time 0.5us
>
> MCA Amptek 8000D
> Input FSR 10V
> 12 bit ADC
>
>
> Nominal gain = 6.7mV/MeV x 50 = 335mV/MeV
>
> 12 bit ADC input FSR = 10V / 0.335V/MeV = 29.85MeV FSR or 7.3keV/channel
>
>
> dE p+n junction strip # 4 ( of 0-15 )
>
> pulser peak centroid = 799.8 ch
> pulser peak width = 7.8 ch FWHM = 57 keV FWHM
>
>
> E p+n junction strip # 4 ( of 0-15 )
>
> pulser peak centroid = 864.8ch
> pulser peak width = 3.5 ch FWHM = 26 keV FWHM
>
>
> E n+n Ohmic strip # 4 ( of 0-15 )
>
> pulser peak centroid = 913.0 ch
> pulser peak width = 5.3 ch FWHM = 39 keV FWHM
>
>
> Noise estimates are probably accurate to c. 10% level. |
| Attachment 1: 20230811_104233.jpg
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| Attachment 2: 20230811_104253.jpg
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55
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Fri Aug 11 09:17:28 2023 |
Annie | Li target scans |
Processed scans of both sides of the Li target showing the beam spot, and an image showing what it looks like to the eye. |
| Attachment 1: 7Li_foil_side1_post_processed.pdf
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| Attachment 2: 7Li_foil_side2_post_processed.pdf
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| Attachment 3: IMG_2914.JPG
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54
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Fri Aug 11 09:11:04 2023 |
Annie | Pulse Settings |
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| Attachment 1: IMG_2908.JPG
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| Attachment 2: IMG_2909.JPG
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| Attachment 3: IMG_2910.JPG
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| Attachment 4: IMG_2911.JPG
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53
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Fri Aug 11 08:41:31 2023 |
Annie | Al target & chamber set up |
Phtotos of the front & back of the Al target and what it looked like once mounted and in the chamber. |
| Attachment 1: IMG_2860.JPG
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| Attachment 2: IMG_2862.JPG
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| Attachment 3: IMG_2867.JPG
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| Attachment 4: IMG_2868.JPG
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| Attachment 5: IMG_2874.JPG
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| Attachment 6: IMG_2875.JPG
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| Attachment 7: IMG_2877.JPG
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| Attachment 8: IMG_2879.JPG
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| Attachment 9: IMG_2880.JPG
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| Attachment 10: IMG_2882.JPG
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| Attachment 11: IMG_2884.JPG
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| Attachment 12: IMG_2896.JPG
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| Attachment 13: IMG_2897.JPG
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| Attachment 14: IMG_2903.JPG
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| Attachment 15: Al26_Target_Above.JPG
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52
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Thu Aug 10 16:11:57 2023 |
TD, NS, AR | Noise |
Observe c. 2mV p to p noise with DSO ( Z_in = 50 Ohm ) c. 60us period with HF structure. DSO connected to junction box via 34-way IDC - 16x Lemo-00 adaptor.
Origin of noise upstream of 4x34-way to 8x16-way Junction Box. Not microphonics from Edwards RV5 Rotary Pump.
No change observed with simple ground connections between NIM bin/+/-15V PSU/Junction Box and MSL type W1 preamplifier units/vacuum chamber/support assembly.
Estimate of electronic noise
Pulser BNC PB-5
Amplitude 0.5V
Attenuation x1
Decay time 1ms
Frequency 50Hz
Preamplifier RAL108
Output impedance 100 Ohm
Sensitivity 20mV/MeV ( into high Z load ), 6.7mV/MeV ( into 50 Ohm load )
Amplifier EG&G Ortec 571
Input terminated by 50 Ohm
Gain x1 (internal) x 1.0 (fine gain) x 50 (coarse gain ) = 50
Shaping time 0.5us
MCA Amptek 8000D
Input FSR 10V
12 bit ADC
Nominal gain = 6.7mV/MeV x 50 = 335mV/MeV
12 bit ADC input FSR = 10V / 0.335V/MeV = 29.85MeV FSR or 7.3keV/channel
dE p+n junction strip # 4 ( of 0-15 )
pulser peak centroid = 799.8 ch
pulser peak width = 7.8 ch FWHM = 57 keV FWHM
E p+n junction strip # 4 ( of 0-15 )
pulser peak centroid = 864.8ch
pulser peak width = 3.5 ch FWHM = 26 keV FWHM
E n+n Ohmic strip # 4 ( of 0-15 )
pulser peak centroid = 913.0 ch
pulser peak width = 5.3 ch FWHM = 39 keV FWHM
Noise estimates are probably accurate to c. 10% level. |
| Attachment 1: 20230810_162959.JPG
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| Attachment 2: IMG_2906.jpeg
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| Attachment 3: 20230810_164219.JPG
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51
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Thu Aug 10 11:30:32 2023 |
Nikolay Sosnin | Silicons and LiF3+Gafchromic Target |
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| Attachment 1: EDET_150um_Box.JPG
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| Attachment 2: EDET_150um.JPG
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| Attachment 3: EDET_ID.JPG
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| Attachment 4: DEED_20um_Box.JPG
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| Attachment 5: LiF3_Gafchrmoic_Target_Mounted.JPG
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| Attachment 6: LiF3_Gafchromic_Side.JPG
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| Attachment 7: LiF3_Gafchromic_Front.JPG
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| Attachment 8: Detector_Mount_and_LiF3.JPG
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| Attachment 9: Detectors_Mounting.JPG
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| Attachment 10: Detectors_Mounted_DEED.JPG
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| Attachment 11: Detectors_Mounted_EDET.JPG
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| Attachment 12: Detectors_and_LiF3_Gafchrmoic_TestPosition.JPG
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| Attachment 13: Detectors_and_LiF3_Gafchrmoic_TestPosition_Back.JPG
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| Attachment 14: Detectors_and_LiF3_Gafchrmoic_TestPosition_Below.JPG
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| Attachment 15: Detectors_and_LiF3_Gafchrmoic_TestPosition_Above.JPG
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| Attachment 16: Detectors_and_LiF3_Gafchrmoic_TestPosition_Tilt.JPG
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| Attachment 17: Detectors_and_LiF3_Gafchrmoic_TestPosition_Front.JPG
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| Attachment 18: Assembly_Insert.JPG
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50
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Thu Aug 10 10:50:15 2023 |
Nikolay Sosnin | Al26 Chamber Cabling/Vacuum/NIM |
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| Attachment 1: Vacuum_Reading.JPG
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| Attachment 2: Pulser_Settings3.JPG
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| Attachment 3: Pulser_Settings2.JPG
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| Attachment 4: NIM_Bin.JPG
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| Attachment 5: Currents.JPG
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| Attachment 6: Amplifier_Settings.JPG
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| Attachment 7: HV_EDET.JPG
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| Attachment 8: HV_DEED.JPG
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| Attachment 9: Pulser_Settings1.JPG
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| Attachment 10: Cables_Full_View.JPG
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| Attachment 11: Preamp_Cables.JPG
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| Attachment 12: BNC_Converters.JPG
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| Attachment 13: DAQ_Cable_Connection_BNC.JPG
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| Attachment 14: Ribbon_Cables_DAQ.JPG
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| Attachment 15: Ribbon_Cables_DAQ.JPG
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| Attachment 16: NIM_Setup_Full.JPG
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| Attachment 17: Vacuum_Pump.JPG
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| Attachment 18: Vacuum_Pump_Exhaust.JPG
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| Attachment 19: Vacuum_Pump_Attachment.JPG
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| Attachment 20: Vacuum_Gauge.JPG
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| Attachment 21: Vacuum_Valve_Lid.JPG
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| Attachment 22: Ribbon_Cables_Back.JPG
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| Attachment 23: Ribbon_Cables.JPG
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49
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Thu Aug 10 10:05:48 2023 |
CLW | Gafchromics Foil |
Gafchromics foil was mounted on empty brass frame back to back with Li sample
Neutron beam goes well through the sample. Centered ~1 cm from sample center. Conclusion: no changes needed (too risky to make it worse and it is ok now) |
| Attachment 1: 20230809_165433.jpg
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| Attachment 2: 20230810_085457.jpg
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| Attachment 3: 20230809_165436.jpg
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48
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Thu Aug 10 10:04:13 2023 |
CLW | Photos inside chamber Al26 run Aug2023 |
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| Attachment 1: 20230809_174847.jpg
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| Attachment 2: 20230809_174905.jpg
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| Attachment 3: 20230809_174943.jpg
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| Attachment 4: Empty_Frame_Inside_Front.JPG
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| Attachment 5: Empty_Frame_Inside_Sideview.JPG
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| Attachment 6: Empty_Frame_Inside_Back.JPG
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| Attachment 7: Assembly_Interior_Back.JPG
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| Attachment 8: Assembly_Interior_Front.JPG
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47
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Thu Aug 10 09:55:50 2023 |
CLW | Photos of Chamber, Al26 Run Aug23 |
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| Attachment 1: 20230809_120302.jpg
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| Attachment 2: 20230809_120309.jpg
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| Attachment 3: 20230809_153802.jpg
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| Attachment 4: 20230809_153809.jpg
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| Attachment 5: 20230809_153821.jpg
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| Attachment 6: Beamline_Chamber_Spacing.JPG
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| Attachment 7: Assembled_Setup_Back.JPG
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| Attachment 8: Assembled_Setup_Back_Zoom.JPG
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| Attachment 9: Final_Assembly_Front.JPG
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| Attachment 10: Mounting_Bolts.JPG
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| Attachment 11: Mounting_Clamps.JPG
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| Attachment 12: EAR2_Pillars_Mount_Side.JPG
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| Attachment 13: EAR2_Pillars_Mount_Front.JPG
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46
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Thu Aug 10 09:20:37 2023 |
CLW | Detector Signal Cabling Al26 Aug 2023 |
delta E detector Cabling
| Lemo Box Output Number |
Signal Cable Bunker |
Patch Panel Number |
Signal Cable Rack Area |
FADC Number |
DAQ Channel |
| 0 |
72 |
2204803 |
9 |
02911 |
DEED-1 |
| 1 |
73 |
2204804 |
10 |
02911 |
DEED-2 |
| 2 |
74 |
2204805 |
11 |
02911 |
DEED-3 |
| 3 |
75 |
2204806 |
12 |
02911 |
DEED-4 |
| 4 |
76 |
2204807 |
13 |
02914 |
DEED-5 |
| 5 |
77 |
2204808 |
14 |
02914 |
DEED-6 |
| 6 |
80 |
2204809 |
15 |
02914 |
DEED-7 |
| 7 |
81 |
2204810 |
16 |
02914 |
DEED-8 |
| 8 |
82 |
2204811 |
17 |
02917 |
DEED-9 |
| 9 |
85 |
2204812 |
18 |
02917 |
DEED-10 |
| 10 |
86 |
2204813 |
19 |
02917 |
DEED-11 |
| 11 |
87 |
2204814 |
20 |
02917 |
DEED-12 |
| 12 |
88 |
2204815 |
21 |
02916 |
DEED-13 |
| 13 |
90 |
2204816 |
22 |
02916 |
DEED-14 |
| 14 |
95 |
2204817 |
23 |
02916 |
DEED-15 |
| 15 |
96 |
2204818 |
24 |
02916 |
DEED-16 |
E p side cabling
| Lemo Box Output Number |
Signal Cable Bunker |
Patch Panel Number |
Signal Cable Rack Area |
FADC Number |
DAQ Channel |
| 0 |
97 |
2204819 |
25 |
4683 |
EDET-1 |
| 1 |
101 |
2204820 |
26 |
4683 |
EDET-2 |
| 2 |
103 |
2204821 |
27 |
4683 |
EDET-3 |
| 3 |
104 |
2204822 |
28 |
4683 |
EDET-4 |
| 4 |
105 |
2204823 |
29 |
4684 |
EDET-5 |
| 5 |
106 |
2204824 |
30 |
4684 |
EDET-6 |
| 6 |
107 |
2204825 |
31 |
4684 |
EDET-7 |
| 7 |
108 |
2204826 |
32 |
4684 |
EDET-8 |
| 8 |
109 |
2204827 |
33 |
4682 |
EDET-9 |
| 9 |
110 |
2204828 |
34 |
4677 |
EDET-10 |
| 10 |
111 |
2204829 |
35 |
4682 |
EDET-11 |
| 11 |
112 |
2204830 |
36 |
4682 |
EDET-12 |
| 12 |
113 |
2204831 |
37 |
4697 |
EDET-13 |
| 13 |
114 |
2204832 |
38 |
4697 |
EDET-14 |
| 14 |
116 |
2204833 |
39 |
4697 |
EDET-15 |
| 15 |
117 |
2204834 |
40 |
4697 |
EDET-16 |
E n side cabling
| Lemo Box Output Number |
Signal Cable Bunker |
Patch Panel Number |
Signal Cable Rack Area |
FADC Number |
DAQ Channel |
| 0 |
118 |
2204835 |
41 |
5348? |
EDET-17 |
| 1 |
119 |
2204836 |
42 |
5348? |
EDET-18 |
| 2 |
120 |
2204837 |
43 |
5348? |
EDET-19 |
| 3 |
121 |
2204838 |
44 |
5348? |
EDET-20 |
| 4 |
123 |
2204839 |
45 |
4677 |
EDET-21 |
| 5 |
124 |
2204840 |
46 |
4677 |
EDET-22 |
| 6 |
125 |
2204841 |
47 |
4677 |
EDET-23 |
| 7 |
126 |
2204842 |
48 |
2872 |
EDET-24 |
| 8 |
127 |
2204843 |
49 |
4636 |
EDET-25 |
| 9 |
128 |
2204844 |
50 |
4636 |
EDET-26 |
| 10 |
129 |
2204845 |
51 |
4636 |
EDET-27 |
| 11 |
130 |
2204846 |
52 |
4636 |
EDET-28 |
| 12 |
131 |
2204847 |
53 |
4674 |
EDET-29 |
| 13 |
132 |
2204848 |
54 |
4674 |
EDET-30 |
| 14 |
133 |
2204849 |
55 |
4674 |
EDET-31 |
| 15 |
134 |
2204850 |
56 |
4674 |
EDET-32 |
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| Attachment 1: 20230809_120804.jpg
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| Attachment 2: 20230809_121357.jpg
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| Attachment 3: 20230809_153703.jpg
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| Attachment 4: 20230809_153720.jpg
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| Attachment 5: 20230809_153730.jpg
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| Attachment 6: 20230809_153744.jpg
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| Attachment 7: 20230809_192718.jpg
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| Attachment 8: 20230810_090445.jpg
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45
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Thu Aug 10 09:10:02 2023 |
CLW | Detector Setup Al26 Run 2023 |
dE Detector: W1-20 3186-9 20 um
E Detector: W1-150 3458-4 144 um
Voltages and Leakage Currents:
dE: 6 V, 0.02 muA
E: 50 V, 0.05 muA |
| Attachment 1: 20230809_181749.jpg
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| Attachment 2: 20230809_181758.jpg
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| Attachment 3: 20230809_172545.jpg
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| Attachment 4: 20230809_172442.jpg
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44
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Mon Jul 31 10:21:41 2023 |
Nikolay Sosnin | n_TOF Data and Filtering |
|
| Attachment 1: Al26_Filtering.pptx
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43
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Thu Jul 27 11:53:52 2023 |
TD | MSL type W1 detector data for 26Al(n,X) experiment EAR2, n_TOF |
MSL type W1(SS)-20
3186-9 20um Depletion voltage 3V Operating voltage 6V
3585-12 20um Depletion voltage 2V Operating voltage 4V
MSL type W1(DS)-150
3458-1 157um Depletion voltage 22V Operating voltage 52V
3458-4 144um Depletion voltage 18V Operating voltage 48V |
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42
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Thu Jul 27 11:25:35 2023 |
Claudia | Al-26 planning meeting summary |
- Start 9th August, access to EAR-2 11 am earliest but can start in rack area before
- Setup to be used: 1 dE (16 strips, 20 um thickness) + 1 E (16x16 strips, 150 um thickness. We have a spare for each thickness
- Sample and detectors to be mounted on the same flange
Things to check:
- alignment with beam centre (lasers and/or gafchromics foils)
- is the setup stable to knockes, can all detector / sample positions be well reproduced when making changes
Once setup us completed:
- checks with pulser
- mounf LiF sample number 3 and run with neutron beam
- check that all strips have signals
- confirm shape of gamma flash and that short times can be anaysed in both detectors (~1.8 us after flash)
If everything working:
- measure LiF-3 and the switch to Al-26
- towards end of the run we can also measure B-3 and the empty brass frame (Frame without mylar)
- proton statistics: 1E17 LiF-3, 1F17 B-3, ~3E17 Empty, 5.5 E18 Al-26
Travel times
Nick: 8-16, Annie 8-12, Tom, 7 -?, Claudia, 8-10, Emmanuel asap until end of run
Measurement runs until Octover 2nd. Disassembly by Nick and Emmanuel.
additional trips during the measurement as required (if something breaks/fails etc. )
Attached: photos of previous setup
TO Do: MCA availability at nTOF for quick noise checks (Nick)
how many channels in 14 bit, how many 12 bit (Nick)
depletion voltages for detectors (Tom)
Register the eqipment at CERN as Edinburgh property (Claudia)
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| Attachment 1: DSC00366.JPG
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| Attachment 2: DSC00346.JPG
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41
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Mon Jul 3 13:01:30 2023 |
Emmanuel | Boxes for nTOF experiments to CERN |
Box 1
1. RC412 Cables
2. Screws and parts for rails
3. Small rails
Box 2
1. Vacuum valves
2. IDC cables
Box 3 (Detectors)
1. WI-20
3186-9
2. WI-150
3458-4
3. WI-150
3458-1
Box 4 (Detector)
1. WI-20
3485-12
*List
**We also have the tube for the long rails
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40
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Sun Oct 9 21:07:02 2022 |
Nikolay Sosnin | Boron Sample 3 Measurement |
21:15 Changed from detectors in-beam to boron-10 sample 3 in-beam (in-beam measurement got 1000 triggers, 500 of which were dedicated). The sample was mounted identically to LiF 3. An attempt was made to replace the 20-micron dE detector with a 50-micron one, but the screwholes on the 50-micron detector did not match the 300-micron E-detector ones and therefore could not be mounted. 20-micron detector was therefore re-attached. Planning to run for 12 hours with boron than dismount. |
| Attachment 1: Voltage_dE4_Resize.jpg
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| Attachment 2: Voltage_E4_Resize.jpg
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| Attachment 3: E_dE_Position_Before_Boron_Resize.jpg
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| Attachment 4: E_dE_Position_Boron_Above_Resize.jpg
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| Attachment 5: E_dE_Position_Boron_Back_Resize.jpg
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| Attachment 6: E_dE_Position_Boron_Resize.jpg
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| Attachment 7: Boron_Sample_Rotation_Angle_Resize.jpg
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| Attachment 8: Boron_Sample3_Target_View_Resize.jpg
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| Attachment 9: Boron_Measurement_Chamber_Interior2_Resize.jpg
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| Attachment 10: Boron_Mounted_Resize.jpg
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| Attachment 11: Boron_Measurement_Chamber_Interior1_Resize.jpg
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| Attachment 12: Boron_Sample3_Back_Resize.jpg
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| Attachment 13: Boron_Sample3_Front_Resize.jpg
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| Attachment 14: Boron_Sample3_InBeam_Resize.jpg
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38
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Sun Oct 9 20:57:54 2022 |
Nikolay Sosnin | Detectors in-beam, no target |
After long beam-off, changed detector mount by moving it 2 cm forward into the beam, after removing LiF 3. |
| Attachment 1: Det_Holder_Default_Position_Resize.jpg
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| Attachment 2: Detectors_in_Beam_CloseUp_Resize.jpg
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| Attachment 3: Detectors_in_Beam_Resize.jpg
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| Attachment 4: Voltage_E_InBeam_AfterNeutrons_Resize.jpg
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| Attachment 5: Voltage_E_InBeam_BeforeNeutrons_Resize.jpg
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| Attachment 6: Mounted_LiF3_Resize.jpg
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| Attachment 7: Voltage_dE_InBeam_AfterNeutrons_Resize.jpg
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| Attachment 8: Voltage_dE_InBeam_BeforeNeutrons_Resize.jpg
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| Attachment 9: Gamma_Flash_InBeam_1_Resize.jpg
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| Attachment 10: Gamma_Flash_InBeam_2_Resize.jpg
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| Attachment 11: LiF3_Mount_Angle_View1_Resize.jpg
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| Attachment 12: LiF3_Mount_Angle_View2_Resize.jpg
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37
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Sat Oct 8 11:57:36 2022 |
Nikolay Sosnin | Change of Detector-Target Separation |
Increased detector-target (LiF 3) separation by 1.5 cm. Had to replace the support strut under the detectors due to the previous one being fuly retracted even for minimal target-detector separation. This change may affect detector rotation relative to the target. |
| Attachment 1: Positive_Pulser_Resize.jpg
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| Attachment 2: Short_Det_Holder_In_Place_Resize.jpg
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| Attachment 3: Short_Holder_In_Chamber_Resize.jpg
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| Attachment 4: Initia_Det_Holder_Config_Resize.jpg
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| Attachment 5: Negative_Pulser1_Resize.jpg
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| Attachment 6: Negative_Pulser2_Resize.jpg
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| Attachment 7: Negative_Pulser3_Resize.jpg
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| Attachment 8: Negative_Pulser3_Resize.jpg
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| Attachment 9: Negative_Pulser4_Resize.jpg
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| Attachment 10: E_Voltage2_Resize.jpg
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| Attachment 11: E_Voltage3_Resize.jpg
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| Attachment 12: Initial_dE_LiF3_Distance_Resize.jpg
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| Attachment 13: Initial_Holder_Back_View_Resize.jpg
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| Attachment 14: Initial_Holder_Front_View_Resize.jpg
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| Attachment 15: dE_Voltage2_Resize.jpg
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| Attachment 16: dE_Voltage3_Resize.jpg
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| Attachment 17: Det_Holder_Stand_Replacement_to_Short_Resize.jpg
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36
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Sat Oct 8 11:56:49 2022 |
Nikolay Sosnin | Silicon Strips of Concern |
DEED 6 and 9 no signal throughout the campaign.
EFED 27 high oscillations in baseline throughout the campaign. |
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35
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Fri Oct 7 20:04:30 2022 |
Nikolay Sosnin | Change of Pulser Setting |
The pulser has been switched from triggering from beam trigger to running at a 10 Hz rate, and will now appear in random places in signal traces. Planned to run overnight measuring LiF3, switch to empty + detector in beam in the morning. |
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34
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Fri Oct 7 17:17:08 2022 |
Nikolay Sosnin | Change of Pulser Delay |
Still using pulser triggered from protons. 12 microsecond delay from protons to gamma-flash + 11 microsecond delay from gamma flash to pulser. 20 mV pulser output into 50 ohm impedance (10 mV final output) of both polarities (using two pulsers, one NE pulser and one BNC PB5 pulser). Changed pulser setting to run with 11 microsecond delay for approx. 2 hour, then change to an overnight run with pulser running NOT triggered from beam. |
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33
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Thu Oct 6 14:58:29 2022 |
Nikolay Sosnin | Change of Pulser Delay |
Still using pulser triggered from protons. 12 microsecond delay from protons to gamma-flash + 1.75 microsecond delay from gamma flash to pulser. 20 mV pulser output into 50 ohm impedance (10 mV final output) of both polarities (using two pulsers, one NE pulser and one BNC PB5 pulser). Changed pulser setting to run with 5 microsecond delay for approx. 1 hour, then change to 10 microsecond delay. |
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32
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Thu Oct 6 11:45:39 2022 |
Nikolay Sosnin | Assembly Setup Days 1 and 2 |
Photographs of assembly up to the first pulser test with LiF3. |
| Attachment 1: LiF4_Mounted_On_Trolley_Resize.jpg
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| Attachment 2: Mounted_Detectors_Resize.jpg
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| Attachment 3: Rail_Clamps_Resize.jpg
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| Attachment 4: Target_Holder_Mount_Resize.jpg
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| Attachment 5: Vacuum_Side_Resize.jpg
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| Attachment 6: LiF4_Final_Position_Resize.jpg
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| Attachment 7: LiF4_In_Chamber_Resize.jpg
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| Attachment 8: LiF4_Mounted_2_Resize.jpg
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| Attachment 9: LiF4_Mounted_Resize.jpg
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| Attachment 10: Final_Readout_Connection_Both_Resize.jpg
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| Attachment 11: Full_Assembly_Resize.jpg
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| Attachment 12: Full_Assembly_Target_Holder_View_Resize.jpg
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| Attachment 13: LiF3_Final_Position_Resize.jpg
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| Attachment 14: LiF3_Holder_Resize.jpg
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| Attachment 15: E_Box_Resize.jpg
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| Attachment 16: E_Detector_Resize.jpg
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| Attachment 17: E_Mounted_Resize.jpg
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| Attachment 18: E_Voltage_Resize.jpg
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| Attachment 19: dE_Box_Resize.jpg
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| Attachment 20: dE_Detector_Resize.jpg
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| Attachment 21: dE_Readout_Connection_Resize.jpg
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| Attachment 22: dE_Voltage_Resize.jpg
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| Attachment 23: Detector_Holder_Mount_Resize.jpg
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| Attachment 24: Central_Chamber_Mounted_Rails_Resize.jpg
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| Attachment 25: Chamber_Support_Resize.jpg
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31
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Thu Oct 6 11:07:47 2022 |
Nikolay Sosnin | Change of sample/Addition of pulser |
Changed from LiF 4 to LiF 3 after running with LiF 4 overnight (run title on n_TOF DAQ was not updated to refelect the change, and still says LiF 4, but the material setting of the run states correctly that hte run is with LiF 3).
Added pulser triggered from protons. 12 microsecond delay from protons to gamma-flash + 1.75 microsecond delay from gamma flash to pulser. 20 mV pulser output into 50 ohm impedance (10 mV final output) of both polarities (using two pulsers, one NE pulser and one BNC PB5 pulser). Planning torun with 1.75 microsecond delay for approx. 1 hour, change to 5 microsecond delay. |
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30
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Thu Oct 6 09:34:30 2022 |
Claudia | Test setup Photos and cabling |
Setup 5.10.22
dE 20 um (ID 2837-33) and 494 um double sided (ID 1194-9)
46 channels (2 connectors missing)
LiF4 in beam
dE: Big flat cables from preamp 22 and 23 into 1A and 1B
E: from preamp 24+25 go into 2A, 2B and 3A 3B
LEMO converter box: Cable 1: dE
Cable 3: E n+n
unlabeled cable: E p+n
E detector voltage: -133 V, leakage current -0.53 micro-Amp
dE detector voltage -22 V, leakage current -0.03 micro-Amp
For the E detector one of the edge p+n strip bond-wires is suspected broken. |
| Attachment 1: 20221005_174742.jpg
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| Attachment 2: 20221005_174759.jpg
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| Attachment 3: 20221005_184752.jpg
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| Attachment 4: 20221005_184801.jpg
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| Attachment 5: 20221005_174742.jpg
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29
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Thu Oct 6 09:28:33 2022 |
Claudia | Items to be replaced for next run |
Missing/broken items identified
- long rails for fixing chamber on support
- vacuum valve (ours is broken)
- at least 2 lemo - BNC converters
- short M3 screws (photo) |
| Attachment 1: 20221005_122654.pdf
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28
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Thu May 26 09:20:32 2022 |
Nick / Claudia | Inventory of Items at n_TOF for (n,cp) experiments |
Detectors currently in the boxes:
2x MSL type W1(SS)-50, 2902-4 (53um), 2940-6 (55um)
1x MSL type W1(SS)-20 2837-33 (20um)
1x MSL type W1(DS?) 1230-10 (500 or 300 um)
1x MSL type W1(DS)-500 1194-9 (494um)
Three aluminium crates contain 26Al(n, alpha) kit from EAR2, and was in the barracks (building 6547) near detector lab by EAR1 entrance. A list is attached and photos can be found on Dropbox:
https://www.dropbox.com/sh/68k1xove2zr1bmj/AADKvN8wR_Ia2EwZMOXZqdMCa?dl=0 |
| Attachment 1: rn_image_picker_lib_temp_e85b2099-7b73-4246-843d-6351800c2709.jpg
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| Attachment 2: rn_image_picker_lib_temp_3ff5f819-1e0c-4278-bbbc-01038a0a0c94.jpg
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27
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Fri Sep 9 10:01:18 2016 |
Sarah | Leakage currents 09.09.16 |
EFED 0.04uA
DEED 0.05uA
PHDI 0.13uA |
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26
|
Fri Sep 2 12:03:40 2016 |
Sarah | SPD card changed |
14 bit card replaced for DEED 9-12, to prevent issue with pulser arriving before gamma flash. |
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25
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Fri Sep 2 12:01:57 2016 |
Sarah | Leakage currents 02.09.16 |
E 0.03
dE 0.05
PHDI 0.12
Check on PHDI pulser width:
205170 (first in beam run) - 1.1% FWHM (at 8275 ch)
205439 (01/09/16) - 1.0% FWHM (at 8008 ch)
Seems to be holding up OK at present. |
|
24
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Tue Aug 23 15:34:38 2016 |
Claudia | Leakage currents 23.08.16 |
E = 0.03uA
dE = 0.04uA
PHDI = 0.09uA
- Monitor PHDI - increasing slowly... |
|
23
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Wed Aug 17 15:10:05 2016 |
Sarah | Leakage currents 12.08.16 |
E = 0.03uA
dE = 0.04uA
PHDI = 0.06uA
- Monitor PHDI - increasing slowly... |
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22
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Thu Aug 11 08:19:37 2016 |
Sarah | Leakage currents 10.8.16 |
At lunchtime (12.45)
E = 0.03 uA
dE = 0.04 uA
PHDI = 0.06 uA |
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21
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Tue Aug 9 15:57:52 2016 |
Sarah | Leakage currents 09.08.16 |
Morning - 9am
E= 0.03uA
dE= 0.04uA
PHDI= 0.06uA
Afternoon - 4.30pm
E=0.03uA
dE= 0.03uA
PHDI=0.05uA
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20
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Mon Aug 8 11:02:13 2016 |
Sarah | Leakage currents 08.08.16 |
E 0.03 uA
dE 0.04 uA
PHDI 0.05 uA
Boron target 1 towards PHDI and Boron target 3 towards dE-E.
Mylar target gluing in electronics lab. |
|
19
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Wed Aug 3 14:48:09 2016 |
Sarah | Leakage currents 02.08 - 03.08 |
02.08:
dE = 0.03 uA
E = 0.03 uA
PHDI = 0.04 uA
03.08:
dE = 0.03 uA
E 0.04 uA
PHDI = 0.04 uA |
|
18
|
Wed Aug 3 09:48:31 2016 |
Sarah | EFED10 alpha calibration checks |
|
EFED10: (1 bin = 2 ch)
Pulser (DAQ):
- Centroid = 5396.8(6) ch
- FWHM = 41(1) ch = 0.7%
Pulser (Maestro):
- Centroid = 4042 ch
- FWHM = 82 ch = 1.9%
148Gd (DAQ):
- Centroid = 2215(1) ch
- FWHM = 57(9) ch = 2.6%
148Gd (Maestro):
- Centroid = 1722 ch
- FWHM = 30 ch = 1.7%
|
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17
|
Tue Aug 2 08:14:26 2016 |
Sarah | Leakage currents spreadsheet (26/07- 01/08) |
Steady for dE, E. Possibly rising on PHDI- monitor closely. |
| Attachment 1: Leakage_currents.xlsx
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|
16
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Sun Jul 31 15:56:32 2016 |
Sarah | DEED16 Alpha calibration checks (205169) |
***note that DEED 16 was on old sampling rate for 205168- so use next run, also DEED 9-12 not plugged in***
DEED16: (1 bin = 2 ch)
Pulser (DAQ):
- Centroid = 5347(3) ch
- FWHM = 89(7) ch = 1.7%
Pulser (Maestro):
- Centroid = 4279 ch
- FWHM = 166 ch = 3.9%
*** take the following with a pinch of salt- low stats (top of peak in DAQ = 4 counts)
148Gd (DAQ):
- Centroid = 1948 ch
- FWHM = 138 ch = 7%
148Gd (Maestro):
- Centroid = 1586 ch
- FWHM = 11 ch = 0.7% |
|
15
|
Sun Jul 31 15:02:57 2016 |
Sarah | DEED6 Alpha calibration checks (205168) |
DEED6: (1 bin = 2 ch)
Pulser (DAQ):
- Centroid = 5145.6(6) ch
- FWHM = 51.4(1) ch = 1%
Pulser (Maestro):
- Centroid = 4042 ch
- FWHM = 137 ch = 3.3%
148Gd (DAQ):
- Centroid = 1980(1) ch
- FWHM = 64(2) ch = 3.2%
148Gd (Maestro):
- Centroid = 1564 ch
- FWHM = 61 ch = 3.9% |
|
14
|
Sun Jul 31 14:32:34 2016 |
Sarah | DEED1 Alpha calibration checks (205168) |
DEED1: (rebin x2 -> 1 bin = 4 ch)
Pulser (DAQ):
- Centroid = 5000(1) ch
- FWHM = 71(5) ch = 1.4%
Pulser (Maestro):
- Centroid = 4008 ch
- FWHM = 148 ch = 4%
148Gd (DAQ):
- Centroid = 1880(1) ch
- FWHM = 89(2) ch = 4.7%
148Gd (Maestro):
- Centroid = 1524 ch
- FWHM = 67 ch = 4.4%
|
|
13
|
Sun Jul 31 13:43:56 2016 |
Sarah | Alpha spectra |
Pulser set to 100 pps.
Shaping amp:
Gain: 1x1.0x50
Tau: 2 us
Negative polarity.
|
| Attachment 1: DEED0_alpha_spec_pulser.Spe
|
$SPEC_ID:
No sample description was entered.
$SPEC_REM:
DET# 1
DETDESC# ERUDITE Easy-MCA-8k SN 13196238
AP# Maestro Version 7.01
$DATE_MEA:
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$MEAS_TIM:
355 355
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| Attachment 2: DEED5_alpha_spec_pulser.Spe
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$SPEC_ID:
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$SPEC_REM:
DET# 1
DETDESC# ERUDITE Easy-MCA-8k SN 13196238
AP# Maestro Version 7.01
$DATE_MEA:
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| Attachment 3: DEED15_alpha_spec_pulser.Spe
|
$SPEC_ID:
No sample description was entered.
$SPEC_REM:
DET# 1
DETDESC# ERUDITE Easy-MCA-8k SN 13196238
AP# Maestro Version 7.01
$DATE_MEA:
07/27/2016 11:15:40
$MEAS_TIM:
274 274
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| Attachment 4: EFED9_alpha_spec_pulser.Spe
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$SPEC_ID:
No sample description was entered.
$SPEC_REM:
DET# 1
DETDESC# ERUDITE Easy-MCA-8k SN 13196238
AP# Maestro Version 7.01
$DATE_MEA:
07/27/2016 09:31:49
$MEAS_TIM:
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| Attachment 5: PHDI_alpha_spec_pulser.Spe
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$SPEC_ID:
No sample description was entered.
$SPEC_REM:
DET# 1
DETDESC# ERUDITE Easy-MCA-8k SN 13196238
AP# Maestro Version 7.01
$DATE_MEA:
07/27/2016 08:34:11
$MEAS_TIM:
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12
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Thu Jul 28 16:00:43 2016 |
Sarah | List of to-dos |
Process alpha data
- Compare pulser width and alpha width to calibration spectra (shaping amp with 1us and gain 50x)
- Does photodiode data process OK or is it a problem with the oscillations?
Process LiF data
- Any pile up issues? Problems with gamma flash?
Online monitoring:
- Check leakage every few days, check lab temp.
- Check alpha peaks of 26Al contaminants - Gd, B.
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11
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Wed Jul 27 13:20:53 2016 |
Sarah | Gafchromic images |
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| Attachment 1: Gafchromic_scan_photos.pdf
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| Attachment 2: 20160725_180604.jpg
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| Attachment 3: 20160726_153323.jpg
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| Attachment 4: New_Doc_19_1_1469601914249.jpg
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| Attachment 5: New_Doc_19_2_1469601914138.jpg
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| Attachment 6: New_Doc_19_3_1469601913934.jpg
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10
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Fri Oct 16 16:11:41 2015 |
Sarah Lonsdale | 09/10/15 Photos of detectors (reversed dE wiring) and upper level frame for future set up, leakage current |
Leakage before take down:
de 0.07 micro A
E 0.47 micro A |
| Attachment 1: 2015-10-09_09.16.16.jpg
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| Attachment 2: 2015-10-09_09.16.22.jpg
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| Attachment 3: 2015-10-09_09.29.23.jpg
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| Attachment 4: 2015-10-09_09.29.35.jpg
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| Attachment 5: 2015-10-09_09.30.02.jpg
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9
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Fri Oct 16 16:01:41 2015 |
Sarah Lonsdale | 08/10/15 Removed source and sample, leakage current check |
Removed source and removed Li sample for blank frame test
Leakage
DE 0.06micro A
E 0.41 micro A
DAQ
56.25 sample rate all except EBED 5,6,7 |
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8
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Fri Oct 16 15:56:01 2015 |
Sarah Lonsdale | 07/10/15 Alpha source in, change to pulser delay |
Alpha source in - containing 148Gd, 241Am, 239Pu, 244Cm (4x 1kBq)
Leakage on arrival
dE 0.08microA , 19V
E 0.48microA 132V
At leaving
dE 0.08 micro A
E 0.41 micro A
Pulser to 20ms (2015-10-07_13.58.08.jpg)
DAQ:
EBED 5,6,7 have post sample 16382
Increased further at 4pm - 16000+ post sample for 225 samples
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| Attachment 1: 2015-10-07_13.58.08.jpg
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| Attachment 2: 2015-10-07_09.53.40.jpg
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| Attachment 3: 2015-10-07_09.54.47.jpg
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| Attachment 4: 2015-10-07_09.55.55.jpg
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| Attachment 5: 2015-10-07_09.59.09.jpg
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| Attachment 6: 2015-10-07_14.07.55.jpg
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7
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Fri Oct 16 15:41:14 2015 |
Sarah Lonsdale | 06/10/15 Changes to DAQ and pulser settings |
Pulser out of 5,6,7 EFED- extended to 32ms
Changed full scale on ADC to 0.2V,
Offset changed by factor of 10.
Zero suppression on, de -3mV thresh
E +-5mV thresh
Post sample 4096
5pm increased post sample for spd-02886 to 8192 as higher sample rate due to pick up.
Corrected EBED 4 offset.
(Again, all DAQ settings also recorded to the nToF erunbook)
Changed pulser to 13ms. |
| Attachment 1: 2015-10-06_delay.jpg
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| Attachment 2: 2015-10-06_trig.jpg
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6
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Fri Oct 16 15:36:13 2015 |
Sarah Lonsdale | 06/10/15 Leakage, dE signal problem solving and external pulser trigger |
Leakage tues am
0.03 microA dE
0.52 microA E
Before leaving at 11.30am or so-
Bias dE up to 20V, leakage to 0.07microA
E has 0.51 microA
Problem solving dE signals...
SIG l6d6 a has signal of 600mV
SIG 24 has signal of 500mV
White noise is comparable, but transient ringing on l6d6 could indicate higher capacitance
Testing dE for signal with alpha source- but removed before continuing run.
dE sees particles after rotating ribbon by 180 degrees (abnormal detector)
External pulser triggering (2015-10-06_11.30.jpg )
Pulsar trigger, +2.5V external from proton pulse (10ms before beam), lasts 1ms (width).
Convert pulse input from TTL to NIM to go into delay (15ms).
Start delay in dual timer, then output to trigger pulser (TTL) |
| Attachment 1: 2015-10-06_10.04.06.jpg
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| Attachment 2: 2015-10-06_10.35.28.jpg
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| Attachment 3: 2015-10-06_10.37.10.jpg
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| Attachment 4: 2015-10-06_10.37.58.jpg
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| Attachment 5: 2015-10-06_11.06.23.jpg
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| Attachment 6: 2015-10-06_11.30.jpg
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5
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Tue Oct 13 21:04:49 2015 |
Claudia Lederer | Photos of Test Setup 5-10 October 2015 |
some photos in high resolution of the test setup 5-10 October 2015 |
| Attachment 1: DSC00042.JPG
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| Attachment 2: DSC00048.JPG
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| Attachment 3: DSC00056.JPG
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| Attachment 4: DSC00065.JPG
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4
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Mon Oct 12 12:07:24 2015 |
Sarah Lonsdale | 05/10/15 Changes to DAQ settings |
Note that detailed DAQ information available from project-ntof.cern.ch erunbook ear2.
As a rough guide: 6/7 mV per MeV
5mV thresh back side E, -5mV front E
-5mV dE
Implemented from Run 203388
From Run 203389
-7mV in Deed 8&9, EFED
+7mV in EBED
Run 203390
Thresholds back to -6mV for deed 8&9
Gamma flash ends at 70micro sec, corresponds to neutron energy of ~200keV... |
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3
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Mon Oct 12 12:04:51 2015 |
Sarah Lonsdale | 05/10/15 Photo of detector distances and layout |
Fairly self explanatory, note that images with time-stamps before 13.08.29 were taken before fitting the o-ring on the flange and therefore lateral positions will be different to photos after 13.08.29. Individual detector heights were not changed. |
| Attachment 1: 2015-10-05_13.08.29.jpg
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| Attachment 2: 2015-10-05_13.08.45.jpg
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| Attachment 3: 2015-10-05_13.08.52.jpg
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| Attachment 4: 2015-10-05_13.09.02.jpg
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| Attachment 5: 2015-10-05_12.55.05.jpg
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| Attachment 6: 2015-10-05_12.55.27.jpg
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| Attachment 7: 2015-10-05_12.55.40.jpg
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| Attachment 8: 2015-10-05_13.12.07.jpg
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2
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Mon Oct 12 11:50:52 2015 |
Sarah Lonsdale | 05/10/15 Pulser, Wiring information and DAQ initial set up |
600mV in 50ohm coax with 25 hz pulser (positive signal) - see 2015-10-05_15.19.54.jpg and 2015-10-05_15.22.46.jpg
Leakage currents on detectors:
In air
10v: 0.03 micro amp det 1 leakage -dE
132v: 0.47micro amp det 2 leakage- E det
In vacuum
DE 0.04 micro amp
E 0.46 micro amp
Same size of signal at ADC hence 50 ohms coaxial.
The following channel explanations refer to cables at control area (not vault) see (2015-10-05_15.19.54.jpg) for full wiring information.
dE det= DEED 0 to -2V full scale, Lower limit 1800mV, Threshold 0V, thresh neg, pre 1024, post 2048, 20ms window, sample rate 225 MS/s
- L6D6 A = de 4
- L6D6 B = de 5
- L6D6 C = de 6
- L6D6 D = de 7
- LaBr 3 = de 8
- 21 = de 9
E det front= EFED 0 to -2V full scale, Lower limit 1800mV, Threshold 0V, thresh neg, pre 1024, post 2048, 20ms window, sample rate 225 MS/s
- 10 = Ef 3
- 12 = Ef 4
- 13 = Ef 5
- 14 = Ef 6
- 15 = Ef 7
E det back= EBED 0 to +2V full scale, Lower limit -200mV, Threshold 0V, thresh pos, pre 1024, post 2048, 20ms window, sample rate 225 MS/s (except EBED 5,6,7 which MUST be 900MS/s due to beam pick up signal)
- 16 = Eb 3
- 18 = Eb 4
- 20 = Eb 5
- 38 = Eb 6
- 40 = Eb 7
Run number 203385 on https://project-ntof.web.cern.ch/project-ntof/eRunbookEAR2.php |
| Attachment 1: 2015-10-05_15.19.54.jpg
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| Attachment 2: 2015-10-05_15.20.24.jpg
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| Attachment 3: 2015-10-05_15.22.39.jpg
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| Attachment 4: 2015-10-05_15.22.46.jpg
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1
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Mon Oct 12 11:27:02 2015 |
Sarah Lonsdale | 05/10/15 - Set up notes |
20 micron (see 2015-10-05_12.46.59.jpg for detailed information) and 500 micron detectors
Testing preamps using pulser through common wire to both sets of preamps (see 2015-10-05_13.12.01.jpg).
64 x 14mA pos signals 15V
64 x 4mA neg signals 15V (see 2015-10-05_12.02.00.jpg for example on oscilloscope)
Sample has 105 microgram Li-6 (LiF - 95% enriched) 105 micron thick (2015-10-05_12.12.15.jpg is Li-6 side up, 2015-10-05_12.12.26.jpg is Li-6 side down... do not mix up!)
dE uses 22, 23 on ribbon connector, E 24, 25
dE from bias supply 2, E from bias 1
de and E pos signals needed to be inverted using jumpers. de negs not used, only 16ch (see 2015-10-05_14.59.12.jpg)
de first and last (0,15) are noisy- don't use. E detector ch 0 doesn't work.
Channels used dE 4-9, E(pos) 3-7 and E(neg) 3-7 (see 2015-10-05_15.11.37.jpg and 2015-10-05_15.11.44.jpg)
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| Attachment 1: 2015-10-05_12.46.59.jpg
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| Attachment 2: 2015-10-05_12.02.00.jpg
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| Attachment 3: 2015-10-05_12.12.15.jpg
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| Attachment 4: 2015-10-05_12.12.23.jpg
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| Attachment 5: 2015-10-05_13.12.01.jpg
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| Attachment 6: 2015-10-05_14.59.12.jpg
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| Attachment 7: 2015-10-05_15.11.44.jpg
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| Attachment 8: 2015-10-05_15.11.37.jpg
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