Fixed, e738, Tue Jul 10 15:17:21 2018, Nori, CATS, General, Cryo-LH2, CATS tracking efficiency 
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Tracking efficiencies deduced from run 330 (after replacing CATS1).
9C 89% (see Attachment 1)
8B 88%
7Be 80%
6Li 65% |
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Fixed, e738, Tue Jul 10 16:28:53 2018, daisuke, OTHER, Social, N/A, 6Li(p,d)5Li
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The peak near 16 MeV was observed in a measurement in the 1960s. The resonance is close to the 3He-d threshold. The narrow width indicates a binary cluster of 3He and d formed in 5Li.
May be interesting to see if the same phenomenon is observed for 6Be. |
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Fixed, e738, Tue Jul 10 17:02:02 2018, jacques, daisuke, freddy, louis, RUN, General, Cryo-LH2, RUN 332
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12C primary: 1.7 uA
start: 16h52
stop: 17h52
Beam stop due to CSS2 power supply failure |
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Fixed, e738, Tue Jul 10 18:23:01 2018, daisuke, OTHER, Social, N/A, mirror reaction of 7Be(p,d)6Be
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Fixed, e738, Tue Jul 10 21:26:48 2018, didier, daisuke, RUN, General, Cryo-LH2, RUN 334 17x
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9C + liquid H. Probably nobody cares this post right now, but the beam is back.
21h00 the beam back to LISE.
21h03 start. Tune the wien filter 3.0 to 0.0 kV to optimize the transmission from CATS to PLASTIC (with visual scaler). TOF spectrum is the same as before.
21h32 1.7 electric micro A.
22h20 Wien filter 0 to 1.0 kV. Scaler Plastic/CATS2 ratio is the highest (93%) with this setting.
23h11 stop |
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Fixed, e738, Tue Jul 10 23:14:31 2018, DD, RUN, General, Cryo-LH2, RUN 335
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9C + Liquid H run.
23h11 start. 1.7 electric micro A. Wien filter 1 kV.
01h06 stop. |
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Fixed, e738, Wed Jul 11 02:52:54 2018, Marlene, RUN, General, Cryo-LH2, RUN336 6x
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run336 start 1:07 / stop 2:48
fluctuations of beam intensity |
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Fixed, e738, Wed Jul 11 02:55:44 2018, e748, RUN, General, Cryo-LH2, RUN 337
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RUN 337 start 2:49 /stop 4:09
Beam intensity CATS 200k pps |
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Fixed, e738, Wed Jul 11 04:16:04 2018, Nori, BEAM, General, Cryo-LH2, Caviar status
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Caviar is now operating at 700 V. TOF-CaviarX position correlations are clearly seen (Attachment 1).
Position efficiencies for each beam species were estimated by applying plastic Q gates on wire multiplicity
distributions (Attachment 2).
9C 98%
8B 96%
7Be 91%
6Li 84% |
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Fixed, e738, Wed Jul 11 05:11:19 2018, e748, RUN, General, Cryo-LH2, RUN 338
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RUN 338
9C beam 200 k pps
start 4:09 /stop 5:10 |
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Fixed, e738, Wed Jul 11 06:11:50 2018, e748, RUN, General, Cryo-LH2, RUN 339 9x
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RUN 339
9C 210 k pps
start 5:11 / stop 6:08 (beam stopped) |
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Fixed, e738, Wed Jul 11 06:17:19 2018, e748, RUN, General, Cryo-LH2, RUn 340
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RUn 340
start 6:10 / stop 7:43
CATS2 has tripped |
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Fixed, e738, Wed Jul 11 07:49:12 2018, Marlčne, Franck, Jacques, Daisuke, RUN, General, Cryo-LH2, RUN 341
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RUn 341
start 7:44 /stop 9h29
CATS2 high voltage 650V (lowered because it tripped) - I= 0.08uA
CATS2 efficiency ~ 50% |
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Fixed, e738, Wed Jul 11 08:18:00 2018, Nori, CATS, General, Cryo-LH2, CATS efficiency
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The tracking efficiency is diminishing probably due to damaged CATS2. |
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Fixed, e738, Wed Jul 11 09:32:37 2018, Franck, Jacques, Daisuke, RUN, General, Cryo-LH2, Run 342 10x
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Wed 11 July 2018
Start @ 9:19
Stop @ 9:29
CATS1 : 200 kcps
CATS2 : 100 kcps
RUN STOPPED TO REPLACE CATS2 |
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Fixed, e738, Wed Jul 11 12:02:14 2018, NPTeam, OFFLINE, General, Cryo-LH2, Lauching parrallel analysis of multiple run
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We made a parralel conversion script in the conversion folder.
You can run up to 5 run in parallel using the command (for run 331-334 in this example):
./ConvertPhysics.sh 331 332 333 334
when the conversion finnished you will have this display:
- Number of transactions: 3
- Number of transactions: 3
- Number of transactions: 3
- Number of transactions: 3
Please do ctrl-C to get out of the script and start again. |
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Fixed, e738, Wed Jul 11 12:04:29 2018, Franck, Jacques + CATS Team, CATS, General, N/A, Run 343 - CATS2 pulser calibration
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Start 11:53
Stop 11:59
CATS2 pulser calibration
Attenuations: 1, 2, 4, 5
+ pedestal |
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Fixed, e738, Wed Jul 11 13:24:34 2018, Daisuke,CATS team: Séb, Thom ; Franck, Pierre, Valérie, RUN, General, Cryo-LH2, Runs 344-345 12x
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Wed 11 July 2018
run 344 start 12h43 ; stop 13h03
e748 Exxx 900M 11 juil. 13:03 /data/e748X/e755/acquisition/run/run_0344.dat.11-07-18_12h43m33s
run 345 start 13h02 ; stop 14h49
e748 Exxx 3,2G 11 juil. 14:49 /data/e748X/e755/acquisition/run/run_0345.dat.11-07-18_13h02m22s
- - - - - - - - - - - - - - - - - -- - - - - - - - -- - - - - - - - -- - - - - - - - -
change of HV on CATS during Run 345: from 650V to 670V
Current on CATS2 is fluctuating (from 0.12 µA up to 0.6 µA) at oscilloscope, signals remain correct.
At 670V it is better for CATS2 efficiency
See plots : run345_EnergyChioRawTsdiff.png and run345_correlDeIChiotofCatsHF.png
Integral for IC is 8075; integral of the physical events in IC DE versus TOF CATS1 is 7548; for CATS2: integral 7044.
We have a rough estimate of CATS efficiencies: 7548/8075= 93%, for CATS2 87%.
The counting rates on CATS have closer values (at 650V, CATS2 is at 130 k pps; at 670V rate is 170k pps)
CATS1: 190k pps
CATS2: 170k pps
Plastic: 175k pps
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Fixed, e738, Wed Jul 11 14:51:13 2018, Daisuke, Franck, Shumpei, Valérie, RUN, General, Cryo-LH2, Run 346
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Wed 11 July 2018
run 346 start 14h50; stop 15h14
748 Exxx 777M 11 juil. 15:14 /data/e748X/e755/acquisition/run/run_0346.dat.11-07-18_14h48m47s
- - - - - - - - - - - - - - - - - -- - - - - - - - -- - - - - - - - -- - - - - - - - -
CATS1 670V I~0.14µA
CATS2 670V ; Current on CATS2 is fluctuating (from 0.12 µA up to 0.6 and 0.98 µA).
CATS1: 200k pps
CATS2: 180k pps
Plastic: 190k pps
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Fixed, e738, Wed Jul 11 16:51:50 2018, Nori, CATS, General, Cryo-LH2, CATS efficiency
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The tracking efficiency recovered after replacing CATS2.
9C 91%
8B 87%
7Be 77%
6Li 62% |
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