During the 98,100Kr setting run we observe 
in the time correlation plot (middle right panel)
of beta signals (marked by AIDA, with amplitude larger than ch=600)
with Riken 3He tube signals (noise and pulser cleaned) 
a small peak around t=0 which might be indication 
of beta-delayed neutrons.
The spectrum was measured for about 2h.

From the 252Cf data.

=====   START OF PARASITIC EXPERIMENTS  ======

New calibration of F11 plastic

We decided to have both a low gain and a high gain 
for F11 plastic dividing the signal from the TFA 
with a "T" and using in one branch a 20db attenuator (reduction by 10)
and sending to two different DACQ channels.
The gain of the TFA was also reduced to x2

V1A7C3: F11_PL_R (Low gain: ~60MeV)
V1A7C4: F11_PL_L
V1A7C5: F11_PL_R_HG (High gain: ~600MeV)
V1A7C5: F11_PL_L_HG

F11 plastic (long plastic after MUSIC chamber) 
connected to DACQ.
The connections were re-cabled and verified.
F11 plastic has 0.2mm thickness (check!)
Current HV: 2000V

Calibration of new F11 plastic
(see photo)

The new plastic is 1mm thick instead of 0.2mm used last year.
Dimensions:120mm x 100mm x 1mm
HV applied: -1800V
Anode signal connected to Ortec 474 TFA
Gain: 20 x minimum; Int: 200ns; Diff: 100ns; Invert
60 Co source

THIS WAS WRONG! POLARITY OF SIGNALS WAS REVERSED.
***************************************************************
*File: 170328_1507_F11PL_60Co.root
*See attached wrong picture 170328_1507_F11_PL_RandL.pdf (R:Red, L:Black)
*
*Calibration (Gain=20):
*V1C7C3_EFIR (R): Peak(<E>=1.25MeV):2077.1 -> a1=0.0006028 MeV/u
*V1C7C4_EFIR (R): Peak(<E>=1.25MeV):1924.0 -> a1=0.0006507 MeV/u
***************************************************************

CORRECT SPECTRUM:
File: 170328_1838_F11PLCal.root
Picture: 170328_1838_F11PLCal.pdf

*************************************************************

Stopping power calculation (SRIM):
50 MeV/A 40Mg: S=102*1.184=120.8 MeV/mm 
100 MeV/A 40Mg: S=102*0.7129= 72.7 MeV/mm 
(Later: according LISE simulations energy loss of 40Mg  is 88MeV)

What is the energy loss of the "light" particles?

Expected Resolution:

------------------------------

G7 should be ~2.0 keV FWHM at 600 keV for all crystals.
D4 should be as low as 1.8 and as high as 3.3 keV FWHM at 600 keV.

Configuration File: (~/DAQ_1/include/hvmon.conf)

-----------------------------------------------------------------

 Type      IP address    channel  slot  name   voltage   Current   RampUp  RampDn    Switch On/Off
                                                                                     V             uA      V/s     V/s            1/0
  ------    ---------------            ---------    -----    ----      -------     -------   ------  ------    -------------
 0        192.168.13.239         0           3     D40      3000       0.5       2       5             1
 0        192.168.13.239         1           3     D41      3000       0.5       2       5             1
 0        192.168.13.239         2           3     D42      3000       0.5       2       5             1
 0        192.168.13.239         3           3     D43      3000       0.5       2       5             1
 0        192.168.13.239         4           3     G70      2500       0.5       2       5             1
 0        192.168.13.239         5           3     G71      3000       0.5       2       5             1
 0        192.168.13.239         6           3     G72      2500       0.5       2       5             1
 0        192.168.13.239         7           3     G73      2500       0.5       2       5             1
 

In all cases (Temperature Monitor, ACQ, etc.) D4 comes before G7 and in the same order.

Here is a picture of one of our Mesytec preamplifiers. We have  located all seven of them. 
They  have 16 input channels and a common SHV per board.

<p>&nbsp;<a href="141031_125516/24.png?lb=BRIKEN"><img border="0" alt="24.png" src="141031_125516/24.png?
lb=BRIKEN&amp;thumb=1" name="att0" id="att0" /></a></p>

After Al degrader with the optimized width of 13 mm, the energy loss in Long Plastic Scintillator is 546(2) MeV at F11.

This value depends on 

Energy Calibration: See attached pdf

Detector Slope Offset
V2A7C1 0.00155643 0.0842245
V2A7C2 0.000658962 0.78685
V2A7C3 0.00153391 1.198
V2A7C4 0.00157933 0.483094
V2A7C5 0.000704268 0.31553
V2A7C6 NOT THERE
V2A7C7 0.00066837 0.465225
V2A7C8 0.000695872 0.678058





> Energy calibration for clovers, 152Eu
> 
> 
> 
> The Eu source positioned in the center roughly. 
> File name: 161103_1426_152Eu.root

Some photos of the elements in the last part of the beam line
during Takechi run.

After the chamber that includes the F11 plastic detector
there are 2 GSI-MUSIC chambers.

In between the MUSIC chambers there is a sample changer 
with 2 Carbon targets of 6mm and 3mm thickness and also
an empty position.

After the 2nd MUSIC there is a plastic detector for testing 
(could be removed at any time)

Afterwards there is the degrader mounted on a separate table.
In the same table there is a 10cm thick lead wall
to protect AIDA during Takechi run.

Mounted on the shielding are from the beam side the top and bottom 
plastic veto detectors.

On the back side the Si detector is mounted.

The hole in the shielding is covered with
a 2cm thick Al plate to protect AIDA during Takechi run. 

Behind AIDA there is a thin plastic detector
to veto the passing through particles.

Full RIB123 Elog entries for Takechi && Fallon parasitic experiments
Update:03Dec16
Instructions:
1) Download RIBF123FullEntries.tar.gz-part-aa and RIBF123FullEntries.tar.gz-part-ab

2) Join and uncompress the file on the terminal: 
    # cat RIBF123FullEntries.tar.gz-part-*| tar xz
3) cd RIBF123FullEntries

4) Open with a Browser ELOGRIBF123_161203_2030_fullWeb.html
-----------------------------------------------------------
HTML elogs for BigRIPS are found by unziping BigRIPSRunSummary.zip and EXPDBRunSummary.zip   

-----------------------------------------------------------
The full elog is also included in pdf file. See:

ElogRIBF123_161203_2030_Full_part1.pdf 

ElogRIBF123_161203_2030_Full_part2.pdf 

From Nov. 9th on we use the Takechi ELOG for the run information:
http://ribf-exp.riken.jp/elog/RIBF123/ 

RIKEN Elog during Fallon Parasitic experiments

Fallon Group: 
Elog is found in http://ribf-exp.riken.jp/elog/DALI2+Fall+2016/

BRIKEN collaboration: 
We keep elog from Takeshi experiments (Nishimura-san desicion!). This elog is found in 

http://ribf-exp.riken.jp/elog/RIBF123/

Preamplifier and signal cable testing

We check all signal cables,the flat cable connector to BNC 
from ORNL/UTK and they are OK.

While checking the preamplifiers (PA) we realized that on the oscilloscope
some of the channels shown pulses without a load when HV is on.
After some checks, we come to the conclusion that is a kind of discharge
on the HV part of the preamp (which appears as positive pulse or negative pulses)
and induce pulses of opposite sign in one or mos neighbouring channels.
After systematically investigating them in the scope, we plug them in the DACQ
to record the spectra. For this we include an additional digitizer SIS3316
to connect al1 channel preamps
PA1(D):UPC:SN-0808223 -> V1A1
PA2(D):GSI:SN-1112572 -> V1A2
PA3(D):UPC:SN-0310315 -> V1A3
PA4(D):UPC:SN-0808220 -> V1A4
PA5(U):UTK: ? -> V1A5
PA6(U):UTK:SN-0808218 -> V1A6
PA7(U):UTK:SN-0713586 -> V1A7
PA8(U):UTK:SN-0808221 -> V2A1, V2A2
PA9(U):UTK:SN-0808215 -> V2A3, V2A4
PA10(U):UTK:SN-0808217 -> V2A5, V2A6

We measure first with a tube of each type connected to Ch#1 of each PA
to adjust parameters of digitizers and range
List-mode: 160717_preampCheck_000.dlt
On-line: 160717_preampCheck.root

Then we remove the tube from Ch#1 to see the effect in this channel:
List-mode: 160717_preampCheck_noTubes_001.dlt
On-line: 160717_preampCheck_noTubes.root

We attach screenshots for both as compressed files (.zip)
and the root files

Distribution of connections of tubes in preamplifiers and digitizers



Because of the need to use 10 PAs instead of 9 PAs we had to redistribute
the signal connections. Now: 
PA1(RIKEN), PA2(RIKEN), PA3(UPC), PA4(UPC), PA5(UPC) -> V1A1-V1A4  
PA6(ORNL1) -> V1A5
PA7(ORNL2) -> V1A6
PA8(ORNL2) -> V2A1,V2A2
PA9(ORNL2) -> V2A3,V2A4
PA10(ORNL2) -> V2A5,V2A6

So V1A1 to V1A4 contain now signals from 2 PAs.
We also redistributed the tubes within the PAs
We also changed the numbering or RIKEN Tubes. Tube 1 to 12 are now 
those on the AIDA side (PA1 attached to the PE block)

A figure showing the distribution of tubes an numbering is included.
Tube 1 is behind tube 19 and so forth.

Attached also is an excel file with tube-channel distribution

Pulser settings

We use two pulsers, Pulser1 for RIKEN, ORNL1 and ORNL2 tubes (7 PA)
and Pulser2 for UPC tubes due to the different gains (3 PA)

10HzClock->G&DG->Pulser->LinearFI/FO

Pulser1: BNC BH-1: trise=1us, tfall=1ms, amp=670mV(scope), NEG
Pulser2: BNC PB-5: tfall=1ms, amp=0.180mV(setting), 90mV(scope), NEG 

Later on we found out that Pulser1 is compatible also for 
the CLOVER detectors (8PA). This will require an additional LinearFI/FO

Measurement with preamplifiers after drying.

Amplifiers are brought back after ~12h and connected.
Measurement of background for 1hour
Online: 160720_1350_1452_Bkg.root
Listmode: No

There might have been a slight improvement on the PA behaviour
but is not clear.

Attached a screen shot of the spectrum

The spurious signals show very little noise superimposed
as can be seen in the attached capture of the sample by the DACQ
but is not so obvious how this can help to veto them. 

We mount back all preamplifiers
Initially we used all the PA coming from US, the repaired and the new ones.
There was an issue with the new ones (strong noise and cross talk)
until we realized that the new ones were of differential type
instead of unipolar. We decided to mount all unipolar so we use
the repaired ones plus the ones which were left here and 
had some minor problems with discharges.

We decided to change slightly the gain of the pulser signals
because for PA6 to PA10 the amplitude after the preamp was 2.2-2.4V
so it was saturating the ADC.
So we decreased Pulser 1 (RIKEN, ORNL1, ORNL2, CLOVER) 
from 690mV to 540mV (NEG) on the scope (50ohm)
and increased Pulser 2 (UPC) from 90mV to 100mV