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Fixed, e755, Mon Jun 25 13:40:41 2018, Marlene, Louis, RUN, General, Cryo-LH2, RUN 118 CAVIAR setting
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run 118 started @ 13h13
stopped @ 13h43
Tension of CAVIAR setting for high intensity beam.
Stopped to enter in D4 and D6 |
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Fixed, e755, Mon Jun 25 14:04:17 2018, Marlene, Louis, RUN, General, Cryo-LH2, RUN 119 to 121
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Test for CAVIAR and CHIO:
run 119 with two 1/15 reductors 13h54 to 14h01
run 120 with one 1/15 reductor 14h01 to 14h03
run 121 without reductor 14h04 to 14h13
run 122 without redictor, with CATS1/3*10**4 14h13 to 14h16 |
Fixed, e755, Mon Jun 25 16:09:24 2018, Benoit Louis, RUN, General, Cryo-LH2, Beam and CHIO tunning 
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During run 126:
Beam was tuned to be centered and homogeneous in the target
efficiency and resolution of the CHIO was improved |
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Fixed, e755, Mon Jun 25 17:23:49 2018, Cherry Mx Team, CATS, General, Cryo-LH2, Confirmation of CATS reconsctruction
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Gating on T1 to T4 and looking at the the CATS reconstruction on Target we confirm that;
- CATS is correlated to MUST
- Telescope Position matches CATS Position, so Telescope numerotation is correct and there is no inversion in CATS.
In attached picture you can see CATS position on target gated by:
- Red: T1
- Green: T2
- Violet: T3
- Noir: T4 |
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Fixed, e755, Mon Jun 25 17:27:59 2018, Cherry Mx Team, CATS, General, Cryo-LH2, Confirmation of CATS reconsctruction
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Gating on T1 to T4 and looking at the the CATS reconstruction on Target we confirm that;
- CATS is correlated to MUST
- Telescope Position matches CATS Position, so Telescope numerotation is correct and there is no inversion in CATS.
In attached picture you can see CATS position on target gated by:
- Red: T1
- Green: T2
- Violet: T3
- Noir: T4
Second plot with MUST reconstruct coordinate. All is consistent. |
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Fixed, e755, Mon Jun 25 11:23:03 2018, daisuke, TARGET, Hardware, Cryo-LH2, Liquid hydrogen target logger
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Fixed, e755, Mon Jun 25 17:28:03 2018, Nori, TARGET, Hardware, Cryo-LH2, Liquid hydrogen target logger
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There was a sudden increase of the temperature at 4pm. Fortunately the cell is still filled with liquid. |
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Fixed, e755, Mon Jun 25 17:31:27 2018, daisuke, benoït, TARGET, Software, Cryo-LH2, RUN 127 (Still filled with liquid? test with Wien filter)
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| Beam spot is now too small to see the cell frames. Moved the beam spot down and up by using the Wien filter. It is not conclusive, but the gap between the cell frame and the liquid surface is increasingly apart toward outside in X. It is possible that liquid filling the upper part of the cell has been evaporated. Should carefully monitor the cell temperature and the beam image. |
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Fixed, e755, Mon Jun 25 17:40:44 2018, daisuke, benoït, RUN, Software, Cryo-LH2, RUN 128 (Still filled with liquid?) 10x
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Fixed, e755, Mon Jun 25 19:59:55 2018, marlène, freddy, benoït, MUST2, Software, N/A, CsI disabled in MUVI/DAS
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Fixed, e755, Mon Jun 25 20:01:07 2018, olivier, daisuke, DAQ, Hardware, N/A, Another deat time scaler
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After RUN 128, we entered D6 to add another deat time measuring pulses to U2M channel 9. This is supposed to correctly measure dead time both for MUVI1 in the master and MUVI2 in the slave. For detail, see page 85 in the logbook.
The new dead time scaler counts at nearly the same rate as the originial dead time scaler. We could not see a meaningful difference. |
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Fixed, e755, Mon Jun 25 20:10:21 2018, daisuke, benoît, RUN, General, Cryo-LH2, RUN 130
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Fixed, e755, Mon Jun 25 20:51:28 2018, daisuke, benoît, RUN, General, Cryo-LH2, RUN 132 9x
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| Previous run (RUN 131), MUST2 threshold was raised to 500 keV to see how the dead time (DESC/ORDD) is improved (found not effective). The threshold was set back to 400 keV. |
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Fixed, e755, Mon Jun 25 22:40:38 2018, daisuke, benoît, RUN, General, Cryo-LH2, Run 133 6x
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| same as before |
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Fixed, e755, Mon Jun 25 23:17:56 2018, Nori, MUST2, General, Cryo-LH2, DSSD multiplicity
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Data analysis of run0128 (38Ca physics run). The multiplicity distribution of DSSD x-strips is shown in
Attachment 1. The second peak centered at around 128, which is the number of strips of one detector, corresponds
to events where beam-like heavy ions are hitting the detector.
This causes a huge energy deposit in the detector and eventually induces the mirror charge to be shared among
many strips. The number of these events amounts to about 6% of the total (note that only 100000 events were used
for the analysis). A typical charge distribution of such an event is shown in Attachment 2.
We may need to adjust negative thresholds to suppress them.
EDIT : The same behaviour can be seen on Y strips (see attachment) |
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Fixed, e755, Tue Jun 26 00:09:40 2018, Pierre, Shumpei, RUN, General, Cryo-LH2, RUN 134
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Start: 26/06 at 00h05
Stop: 00h40 for PCP to improve beam tuning
Beam is back after some tunning.
Trigger: MM+CATS DIV
Beam intensity about 2x10^5 pps |
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Fixed, e755, Tue Jun 26 01:02:42 2018, Pierre, Shumpei, RUN, General, Cryo-LH2, RUN 135
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start: 01h02
stop: 01h39
Trigger: MM+CATS DIV
Beam = 2x10^5; pps |
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Fixed, e755, Tue Jun 26 01:46:56 2018, Pierre, Shumpei, RUN, General, Cryo-LH2, RUN 136
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start: 01h41
stop: 03h37
!!!!!!!!!
New signal from CAVIAR has been shifted by 50 ns.
=> TAC_CATS_CAVIAR is now qlso shifted => new cut condition will have to be applied for run 136 |
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Fixed, e755, Tue Jun 26 03:40:15 2018, Pierre, Shumpei, RUN, General, Cryo-LH2, RUN 137
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start: 03h38
stop: 05h30
Same condition as before
Trigger: MM + CATS DIV
Beam = 2x10^5 pps |
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Fixed, e755, Tue Jun 26 05:32:35 2018, Pierre, Shumpei, RUN, General, Cryo-LH2, RUN 138
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start: 05h31
stop: 07h23
Trigger: MM + CATS DIV
Beam = 2x10^5 pps |
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Fixed, e755, Tue Jun 26 05:40:52 2018, Pierre, OFFLINE, General, Cryo-LH2, Kinematic lines and Ex for 38Ca(p,d) and 38Ca(p,t)
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-> 38Ca(p,d) uses run 128
-> 38Ca(p,t) uses run from 128 up to 136
The macro to plot them are located in /home/e748/analysis/nptool/Projects/e755/Analysis/macro
- ShowResult_pd.C
- ShowResult_pt.C |
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