AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40
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Entry  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.

Entry  Thu Oct 6 11:45:39 2022, Nikolay Sosnin, Assembly Setup Days 1 and 2 25x

Photographs of assembly up to the first pulser test with LiF3.

Entry  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.

Entry  Thu Oct 6 09:34:30 2022, Claudia, Test setup Photos and cabling 20221005_174742.jpg20221005_174759.jpg20221005_184752.jpg20221005_184801.jpg20221005_174742.jpg

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.

Entry  Thu Oct 6 09:28:33 2022, Claudia, Items to be replaced for next run 20221005_122654.pdf

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)

Entry  Thu May 26 09:20:32 2022, Nick / Claudia, Inventory of Items at n_TOF for (n,cp) experiments rn_image_picker_lib_temp_e85b2099-7b73-4246-843d-6351800c2709.jpgrn_image_picker_lib_temp_3ff5f819-1e0c-4278-bbbc-01038a0a0c94.jpg

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

Entry  Fri Sep 9 10:01:18 2016, Sarah, Leakage currents 09.09.16 

EFED 0.04uA
DEED 0.05uA
PHDI 0.13uA

Entry  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.

Entry  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.

Entry  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...

Entry  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...

Entry  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

Entry  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
 

Entry  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.

Entry  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

Entry  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%

 
Entry  Tue Aug 2 08:14:26 2016, Sarah, Leakage currents spreadsheet (26/07- 01/08) Leakage_currents.xlsx

 Steady for dE, E. Possibly rising on PHDI- monitor closely.

Entry  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%

Entry  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%

Entry  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%

 

 

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