 Fri Mar 31 05:27:44 2017, OH,SN,JA,PV, 40Mg run 36
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Date: 31/03/2017
Start: 13:24
BRIKEN run: 036
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Tue Oct 31 06:57:53 2017, OH, TD, AIDA Oct17 Beam Test Analysis 
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| PDF file attached with the preliminary analysis of the October 2017 AIDA in beam test. |
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Fri Mar 31 07:17:03 2017, OH PV JA CG, Run 37
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Date: 31/03/2017
Start: 15:24
BRIKEN run: 037
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Thu Nov 3 14:02:49 2016, Nepal, J Ha, PV, Liu J, The degrader system has been set
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We used the laser to align the degrader (see attached photos)
According to the LISE calculation, equivalent effective thickness for 6 mm of Carbon target is 4.5 mm thick Aluminum.
Therefore, we've set the degrader system as follow: |
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Fri Jul 15 08:29:14 2016, Nathan Brewer, Shintaro Go, Expected Performance and Voltage Setting for Germanium
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Expected Resolution:
------------------------------
G7 should be ~2.0 keV FWHM at 600 keV for all crystals. |
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Fri Jul 15 11:47:31 2016, Nathan Brewer and Alvaro Tolosa, Preliminary Ge Calibration, Resolution and Configuration 9x
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Today several tests (3) were done with the germanium detectors with the voltage configuration listed in the previous entry.
The tests were as follows:
Tests with 60Co+137Cs sources |
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Mon Nov 7 06:55:01 2016, NTB, SG, HPGe Fill line to D4 replaced
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HPGe fill line to D4 replaced only small leak (overflow) once Ge is full.
Solenoid was also wrapped to no effect. AIDA DAQ still stops writing.
Boron sheet and extra polyethylene were placed back on top. |
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Tue Nov 8 17:00:27 2016, NTB, CG, AT, Si Delta E
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At least during the timeframe in between ~ 21:30 (11/08) - 23:30 (11/09) (161108_2323_717273Ni.root) we see that the silicon dE have a very low counting
rate. ~1Hz when the first AIDA detector sees ~600 Hz and a cumulative ~2kHz. The energy range in the dE stops at ~10MeV.
Edit: It appears the Si dE were removed. Some signals are still in the spectra. |
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Thu Aug 18 22:39:35 2016, NT Brewer, New preamps arrived at Oak Ridge and tested working.
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Collaborators,
Attached is a phone photo of example signals from the new preamps with 3 3He tubes connected to a scope. Scope channels 1,2,3 (color y,c,m respectively)
are preamp channels 1,2,3 while 4 (green) is open. Trigger is on channel 3, at 500mV/div and other channels are at 500,200,and 20 mV/Div for channels 2,1,4 |
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Thu Aug 18 23:32:59 2016, NT Brewer, New preamps arrived at Oak Ridge and tested working.
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Collaborators,
Attached is a phone photo of example signals from the new preamps with 3 3He tubes connected to a scope. Scope channels 1,2,3 (color y,c,m respectively)
are preamp channels 1,2,3 while 4 (green) is open. Trigger is on channel 3, at 500mV/div and other channels are at 500,200,and 20 mV/Div for channels 2,1,4 |
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Tue Nov 6 21:51:54 2018, NT Brewer, New D4Off.conf for HV also on github
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V A V/s V/s 1/0
------ ---------------
--------- ----- ---- ------- ------- ------ ------ -------------
0
192.168.13.239 0 0 PA1 1450 0.0001 50 10 1
0 192.168.13.239 1 |
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Fri Oct 14 13:32:52 2016, NT BREWER, S Go, JM Allmond, Ge preamp power loss and solution.
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As previously recorded (81), on Thur Oct 13th, A NIM crate failure caused preamp power loss to the HPGe's. While D4 recovered with nominally the
same resolution as before. G7 would not recieve power to the preamps without an alarm from the NIM crate.
It was determined that there was a short along the lines of +12V and Ground , -12V and Ground, and between +-12V. |
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Wed Oct 18 08:46:23 2017, NB, SG, AT, JL, Clover G7 resolution
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G7 clover was on the stand
Source: 152Eu
File: 171018_1627_152Eu_G7.root
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Sat Oct 21 07:26:13 2017, NB, RY, BD, MS, Corrected Calibration D4
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K R G B
m 0.001558636 0.0006599344 0.0015311753 0.0015807021
b -0.6545742444 0.4330534066 2.001278013 1.0994163913
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Sat Oct 21 04:18:17 2017, NB, Draft of Instructions for HV
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Setup:
2 MPOD + cards with 8 channels each one where the 10 BRIKEN PA are connected.
1 MPOD + card with 8 possible inputs |
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Wed Oct 25 19:14:09 2017, NB, First pass efficiency for current experiment
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I roughly (~10%) checked the efficiency for 4 of the peaks from 171025_1222_1355_152EuCloverCal.root.
I checked the peaks at 122, 245, 344, and 1408. The indication is an efficiency of 6.9, 9, 9,8, and 2.6 % for these gamma rays
repectively. |
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Tue Oct 11 15:47:45 2016, N Brewer, S Go et al, CLOVER
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Both COVER detectors are installed in place.
See photos.
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Tue Nov 8 12:51:08 2016, Many, 717273Ni
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After removing the lead wall.
Start: 21:45
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Tue Nov 8 13:49:58 2016, Many, 71,72,73Ni
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F7 CH2 F11 Empty
We remove the 8mm Al plate from inside BRIKEN infront of AIDA
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Tue Nov 8 14:28:54 2016, Many, 717273Ni run
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F7 CH2 F11 C-6mm
Total degrader thickness 6mm
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