 Fri Mar 31 02:26:19 2017, ID RCF, 40Mg Run 033
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Date: 31/03/2017
Start: 10:23
BRIKEN run: 033
AIDA Run: R16_507
BigRIPS run: 176
DLT:170331_1023_Mg40_033.dlt
BRIKEN Rate: 4 cps
F11 Rate: 10 cps
Date: 31/03/2017
Stop: 11:22
BRIKEN run: 033
AIDA Run: R16_521
BigRIPS run: 176
Root file:170331_0012_1123_B033_Mg40.root
OBSERVATIONS: We started dividing he count rates by factor 10 (clock = 10 Hz) a few runs ago. Please check this.
Night shift has used the count rates directly from the plots. |
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Fri Mar 31 01:50:15 2017, ID, RCF, 40Mg Run 032
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Date: 31/03/2017
Start: 10:01
BRIKEN run: 032
AIDA Run: R16_502
BigRIPS run: 175
DLT:170331_1001_Mg40_032.dlt
BRIKEN Rate: 4cps
F11 Rate: 11
Date: 31/03/2017
Stop: 10:22
BRIKEN run:032
AIDA Run: R16_506
BigRIPS run: 176(beginning)
Root file:170331_0012_1022_B032_Mg40.root
OBSERVATIONS: |
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Thu Mar 30 01:46:30 2017, J.Agramunt, 40Mg Run 009
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Date: 30/03/2017
Start: 09:47
BRIKEN run: 009
AIDA Run: R16_126
BigRIPS run: run150
DLT: 170330_0948_Mg40_009.dlt
BRIKEN Rate: 4 cps
F11 Rate: 12 cps
Date: 30/03/2017
Stop: 11:51
BRIKEN run: 9
AIDA Run:R16_163
BigRIPS run: 151
Root file:170330_0947_1151_B009_Mg40.root
OBSERVATIONS:
Two BigRips files |
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Thu Mar 30 00:47:04 2017, J. Agramunt, 40Mg Run 008
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Date: 30/03/2017
Start: 08:41
BRIKEN run: 008
AIDA Run: R16_107
BigRIPS run: 149
DLT: 170330_0718_Mg40_008.dlt
BRIKEN Rate: 3.5 cps
F11 Rate: 12
Date: 30/03/2017
Stop: 09:46
BRIKEN run: 008
AIDA Run: R16_126
BigRIPS run: 149
Root file:170330_0840_0946_B008_Mg40.root
OBSERVATIONS: |
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Wed Mar 29 21:34:20 2017, RCF, 40Mg Run 006
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Date: 30/03/2017
Start: 05:42
BRIKEN run: 006
AIDA Run: R16_57
BigRIPS run: 147
DLT: 170330_0542_Mg40_006.dlt
BRIKEN Rate: 3.5cps
F11 Rate: 12
Date: 30/03/2017
Stop: 06:43
BRIKEN run:006
AIDA Run:R16_73
BigRIPS run:147
Root file:170330_0429_0643_B006_Mg40.root (accumulated)
OBSERVATIONS:
Carbon foil changed at the beginning of this run.
AIDA is still seeing "nothing" Liu changes the distance of the Al degrader from 13mm to 11mm.
Syncronization: Difference of timestamps between AIDA and BIGRIPS observed on terminals remains constant.
6:40: BIGRIPS stop the run and they ar doing calibrations for 20-30 minutes. |
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Wed Mar 29 19:31:21 2017, RCF, 40Mg Run 004
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Date: 30/03/2017
Start: 03:29
BRIKEN run: 004
AIDA Run: R16_22
BigRIPS run: 145
DLT: 170330_0329_Mg40_004.dlt
BRIKEN Rate: 3.5cps
F11 Rate: 13
Date: 30/03/2017
Stop: 04:25
BRIKEN run:004
AIDA Run:R16_37
BigRIPS run:145
Online not erased.
Root file:170330_0216_0425_B004_Mg40.root (accumulated with previous root)
Syncronization: Difference of timestamps seems to be constant between AIDA and BIGRIPS values observed on terminals |
Wed Mar 29 18:42:25 2017, RCF, 40Mg Run 003 
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Date: 30/03/2017
Start: 02:39
BRIKEN run: 003
AIDA Run: R16_5
BigRIPS run: 144
DLT: 170330_0239_Mg40_003.dlt
BRIKEN Rate: 4cps
F11 Rate: 12
(First part of the run in the rate histogram was overlapping the previous data. The reason is not understood).
Date: 30/03/2017
Stop: 03:27
BRIKEN run:003
AIDA Run:R16_21
BigRIPS run:145 (just started)
Online not erased.
Root file:170330_0216_0326_B003_Mg40.root (accumulated with previous root)
Syncronization terminals on screenshots to compare with previous run. Due to the updates on each terminal are not with the same frequency it is hard to observe in the screenshots, but on live seems to be constant. |
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Wed Mar 29 18:16:58 2017, RCF, 40Mg Run 002
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Date: 30/03/2017
Start: 02:16
BRIKEN run: 002
AIDA Run: R16_4
BigRIPS run: 143
DLT: 170330_0216_Mg40_002.dlt
BRIKEN Rate: 6cps
F11 Rate: 13
Date: 30/03/2017
Stop: 02:38 (bigrips started new file 15 minutes ago)
BRIKEN run:002
AIDA Run:R16_5
BigRIPS run:144
Online not erased since JL left. Just Start File.
Root file: HISTOGRAMS NOT SAVED FOR THIS RUN
Observation: AIDA recovered at 02:15
Synchronization plot not generated. Some screenshots rom terminals attached. AIDA terminal has additional messages and between both terminals (AIDA/BIGRIPS) there is a constant offset apparently. |
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Wed Mar 29 15:16:17 2017, Many, 40Mg Run 001
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Date: 29/03/2017
Start: 23:13
BRIKEN run: 1
AIDA Run: R13_36
BigRIPS run: 141
DLT: 170329_2213_Mg40_001.dlt
BRIKEN Rate: 6cps
F11 Rate: ?
Date: 30/03/2017
Stop: 00:18
BRIKEN run:001
AIDA Run:R13_52
BigRIPS run:141
Previous online not erased
Root file:170329_2213_0018_B001_Mg40.root
Observation: AIDA crash at 23:59 |
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Wed Mar 29 14:14:58 2017, Many, 40Mg RUN 000
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Date: 29/03/2017
Start: 22:13
BRIKEN run: 0
AIDA Run: R13_18
BigRIPS run: 140
DLT: 170329_2213_Mg40_000.dlt
BRIKEN Rate: 6cps
F11 Rate:
Stop: 23:10
BRIKEN run: 0
AIDA Run: R13_35
BigRIPS run: 140
Root file: 170329_2213_2310_B000_Mg40.root
Observations:
- We should increase the gain of F11 plastic (now a bit to small)
say by a factor of 2. Calibration is probably wrong!? |
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Thu Mar 30 19:16:46 2017, GK,DK,JLiu,JA,JLT, 40 Mg run 24
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Date: 31/03/2017
Start: 03:14
BRIKEN run: 24
AIDA Run: R16_402
BigRIPS run: 168
DLT: 170331_0314_Mg40_024.dlt
BRIKEN Rate: 4
F11 Rate: 13
Date: 31/03/2017
Stop: 04:10
BRIKEN run: 24
AIDA Run: R16_416
BigRIPS run: 169
Root file: 170331_0012_0409_B024_Mg40.root
OBSERVATIONS: Previous online was cleared |
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Mon Jul 18 18:40:32 2016, A. Tarifeņo-Saldivia and J. L. Tain, 3He tubes - Testing 7x
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Test of individual 3He tubes
The tests were done using the ATOMKI MCA and
HV: ISEG NH204M
Preamp: Mesytec MHV-16 (Unipolar IFIC)
Amp: ORTEC671 (Gain=5x0.5,SHP=6us)
Pulser: 10Hz-Clock + TC410A G&DG + BH-1 (tr=1us,tf=1ms,amp=0.7)
Spectra measured with 1024 channels
Counting time: 100s (UPC, RIKEN and ORNL 1")
120s (ORNL 2")
Neutron source: 252Cf
PE setup: 1 inches tubes were tested on the BELEN-20 PE matrix, while for 2 inches tubes a moderator was prepared
using existing material (see attached figures).
Attached a figure with a sample spectrum for each tube type
and a compressed file with all the measured spectra in ASCII format.
All the tubes performed correctly. The neutron signal is well separated from the noise.
The RIKEN tubes have the highest gain. Gain in the UPC tubes is the lowest.
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Sat Jul 9 21:14:12 2016, J.L. Tain, 3He tubes
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Drawings and specs of 3He tubes |
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Sat Jul 9 21:21:38 2016, J.L. Tain, 3He tubes
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Tube distribution in the moderator, pre-amplifiers and digitizers |
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Mon Jul 18 19:01:36 2016, J.L. Tain, 3He tubes
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Adjustment of HV and PA gain
We adjust the HV for each tube type and the gain of the preamplifier (PA) in order
to have a similar signal amplitude for the 764keV peak in all of them.
Because of the very different gain between tubes we are not able to combine in the same
PA tubes from RIKEN and UPC, thus we have to go for 10 PA instead of 9:
Settings: Preamp (type), Tube type, HV, Gain, height or 764keV pulse, pulse polarity
PA1 (D), RIKEN, 1450V, LowGain, ~400mV, POS
PA2 (D), RIKEN, 1450V, LowGain, ~400mV, POS
PA3 (D), UPC, 1550V, HighGain, ~400mV, POS
PA4 (D), UPC, 1550V, HighGain, ~400mV, POS
PA5 (U), UPC, 1550V, HighGain, ~600mV, NEG
PA6 (U), ORNL1, 1200V, LowGain, ~400mV, NEG
PA7 (U), ORNL2, 1750V, LowGain, ~400mV, NEG
PA8 (U), ORNL2, 1750V, LowGain, ~400mV, NEG
PA9 (U), ORNL2, 1750V, LowGain, ~400mV, NEG
PA10 (U), ORNL2, 1750V, LowGain, ~400mV, NEG
We need to use two different pulse generators to adjust differently the pulse height
of UPC tubes |
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Sat May 2 03:52:14 2015, J.L. Tain, 3He tube description
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3He tube drawings and technical details:
RIKEN, UPC, GSI, ORNL-1, ORNL-2 |
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Sun Apr 2 00:44:01 2017, ID JA GK CG VP Liu JLT, 39Al run 75
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Date: 2/04/2017
Start: 08:42
BRIKEN run: 75
AIDA Run: R24_0
BigRIPS run: 254
DLT:170402_0842_39Al_075.dlt
BRIKEN Rate: 1 cps
F11 Rate: 12 cps
Date: 2/04/2017
Stop:09:00
BRIKEN run: 75
AIDA Run: r24_4
BigRIPS run: 254
Root file:170402_0842_0900_B075_Al39.root
OBSERVATIONS: |
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Sun Apr 2 00:19:01 2017, ID JA GK CG YS SN Liu VP , 39Al run 74
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Date: 2/04/2017
Start: 08:17
BRIKEN run: 74
AIDA Run: R21_23
BigRIPS run: 252
DLT:170402_0817_39Al_074.dlt
BRIKEN Rate: 48 cps
F11 Rate: 320 cps
Date: 2/04/2017
Stop:08:20
BRIKEN run: 74
AIDA Run: r21_23
BigRIPS run: 252
Root file:170402_0817_0820_B074_Al39.root
OBSERVATIONS: |
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Sat Apr 1 22:41:22 2017, ID, GK, SN, Liu YS JLT, 38Mg run 73
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Date: 2/04/2017
Start: 06:37
BRIKEN run: 73
AIDA Run: R21_0
BigRIPS run: 237
DLT:170402_0637_38Mg_073.dlt
BRIKEN Rate: 5 -> 90 cps
F11 Rate: 30 -> 350 cps
Date: 2/04/2017
Stop: 08:06
BRIKEN run: 73
AIDA Run: r21_22
BigRIPS run: 251
Root file:170402_0637_0806_B073_Mg38.root
OBSERVATIONS:
Playing with degraders
Final degrader: 23mm
New BigRIPS run 238 started at 6:46 (38Mg beam attenuated by 1/8) -> very few counts in Si
New run 239-240 started at 7:03 (38Mg beam attenuated 1/2 narrow slit)-> we see more counts in the Si
run 241-242 atarted at 7:09 (38Mg 70% narrow slit)
run 243-244 at 7:16 (38Mg 5000enA)
run 245-246 at 7:23 (38Mg beam intensity 0.8)
run 247-248 at 7:32 (38Mg beam intensity 0.9)
run 249-250 at 7:38 (38Mg full beam)
run 251 at 7:41 (38Mg yield measurement) |
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Sat Apr 1 22:18:00 2017, Liu, YS, CG, GK, SN, JLT , 38Mg run 72
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DUMMY |