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Physics shift 2016-12-05 » History » Revision 15

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Liu, Ao, 09 December 2016 04:29


Physics Shift Report

Start Date: 5th December
End Date: 10th December
Start Run: 08733
End Run:
Physics shifter: Francois Drielsma(5-6), Ao Liu(7-10) (The two periods were written separately into two halves.)

Task

The task at end is to continue to take data for the emittance reduction measurement with LiH, task H7.

The cooling channel is in the setting 2016-04_1.5 which, corresponds to the following field in the cooling channel:

Task H7 - Emittance Reduction!!

Task Momentum # Triggers Beamline Tag CoolingChannel Tag Similar runs
H7a 140 1e6 TOF1 3-140+M3-Test2 2016-04-1.5 H4a
H7b 140 1e6 TOF1 6-140+M3-Test2 2016-04-1.5 H4b
H7c 140 2e6 TOF1 10-140+M3-Test3 2016-04-1.5 H4c

Analysis

  • Tag is the beamline tag
  • Runs is a list of runs considered to make following calculations (I didn't use all runs for a particular tag)
  • TOF1 Triggers is the sum of the CDB TOF1 triggers scalar; note this is trigger requests (does not include dead time/etc)
  • TOF2 Triggers is the sum of the CDB TOF2 triggers scalar; note this is trigger requests (does not include coincidence with TOF1/etc)
  • lmc1234 sum is the sum of the CDB luminosity monitor scalar
  • time taken is the sum of the times listed (time between "start run" and "stop run")
  • number in muon peak is the number reporting tof01 in the muon peak, tuned by tag (roughly 28 to 32 ns)
  • number at tof2 is the number reporting at least one space point in tof1 and exactly one space point in tof2
  • number passing all cuts is the number passing:-
    • exactly one track in TKU
    • tof01 in the muon peak (tuned by tag)
    • TKU total momentum between 135 and 145 MeV/c
    • Exactly one space point in TOF0 and TOF1
  • number passing all cuts/p in tku:- I histogram p in TKU, then find the peak bin, then report number in the peak bin divide bin width
  • number passing all cuts/tof01:- as per previous entry, but this time using tof01 histogram

Task H7 - Emittance Reduction!!

Adding 240 MeV/c data.

Tag Runs lmc1234 sum TOF1 Triggers TOF2 Triggers time taken number in muon peak number at tof2 number passing all cuts number passing all cuts / p in tku [MeV/c^-1] number passing all cuts / tof01 [ns^-1]
3-140+M3-Test2_8733-8738 [8733, 8734, 8738] 1789222 521996 281211 4 hrs 13 mins 155099 134655 38524 4847.97 67500.0
6-140+M3-Test2_8736-8744 [8736, 8739, 8744] 2489544 917169 366259 5 hrs 40 mins 283637 162498 85975 9185.91 173260.0
10-140+M3-Test3_8737-8745 [8737, 8740, 8745] 2806318 1645663 289339 6 hrs 32 mins 749665 103749 49662 5391.51 87150.0
3-240+M3-Test1 [8747, 8748, 8750] 1048518 960522 218694 2 hrs 41 mins 270615 116469 10572 1361.17 25080.0

Sample output

Task H4 - Emittance Reduction!!

===== 3 mm-140 =====

===== 6 mm-140 =====

===== 10 mm-140 =====

Physics shifter: Ao Liu(7-10)

Task

The task at end is to continue to take data for the emittance reduction measurement with LiH, task H9, for 200 MeV/c beams.

The cooling channel is in the setting 2016-04_1.7.

Task H9 - Emittance Reduction!!

Task Momentum # Triggers Beamline Tag CoolingChannel Tag Similar runs
H9a 200 1e6 TOF1 3-200+M3_Test1 2016-04-1.7 H4a H7a
H9b 200 1e6 TOF1 2016-04-1.7 H4b H7b
H9c 200 2e6 TOF1 2016-04-1.7 H4c H7c

Analyses: Task H9 - Emittance Reduction!!

Tag Runs lmc1234 sum TOF1 Triggers TOF2 Triggers time taken number in muon peak number at tof2 number passing all cuts number passing all cuts / p in tku [MeV/c^-1] number passing all cuts / tof01 [ns^-1]
3-200+M3-Test1 [8776, 8777] 1407497 840282 155063 3 hrs 31 mins 384280 75365 16281 2176.4 32630.0

The plots have been included in the tarball.

Updated by Liu, Ao over 7 years ago · 15 revisions