Difference between revisions of "KPP Run"
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# Study tracking efficiency: four HV setings: 8, 9, 10, 11, 12, for each HV four threshold settings: 30, 45, 60, 75. 10 min runs each. | # Study tracking efficiency: four HV setings: 8, 9, 10, 11, 12, for each HV four threshold settings: 30, 45, 60, 75. 10 min runs each. | ||
# Continue with data taking torus at -1900 A, target at 13.125, DC HV seting #11, thresholds 45 mV | # Continue with data taking torus at -1900 A, target at 13.125, DC HV seting #11, thresholds 45 mV | ||
− | # Switch target (call RC) continue data taking | + | # Switch target (call RC) and continue data taking till Sunday morning |
+ | # Change torus polarity, setting +1900 A. While torus current is changing, perform harp scans and FSD studies (see below) | ||
# (Sunday) Perform beam studies (call RC and beamline, <b> Turn off DC HV </b>): | # (Sunday) Perform beam studies (call RC and beamline, <b> Turn off DC HV </b>): | ||
#*<del>Do harp scans - 2C21, "tagger", and 2H01</del> done while changing the torus setting | #*<del>Do harp scans - 2C21, "tagger", and 2H01</del> done while changing the torus setting | ||
#*<del>Run 2H01 at low speed (speed=0.1) to 13.3 position and save strip chart of motor position together with downstream halo counters</del> done while changing the torus setting, the first carbon target was found at ~10.6 | #*<del>Run 2H01 at low speed (speed=0.1) to 13.3 position and save strip chart of motor position together with downstream halo counters</del> done while changing the torus setting, the first carbon target was found at ~10.6 | ||
#*Test FSD system, run Struck scaler with 300um dwel time, ask MCC to set FSD trip time integration times for FSD channels (1 old and 3 new) to 1 ms. Un-mask one FSD channel, run collimator with slmall steps to left or right untill it will intercept beam tails. It will raise rateson halo counters. | #*Test FSD system, run Struck scaler with 300um dwel time, ask MCC to set FSD trip time integration times for FSD channels (1 old and 3 new) to 1 ms. Un-mask one FSD channel, run collimator with slmall steps to left or right untill it will intercept beam tails. It will raise rateson halo counters. | ||
− | # Continue data taking | + | # Continue data taking at 1900 A, trigger Sector-2 only high threshold |
− | # | + | # Switch to 6-sector trigger, take data till Monday morning. |
+ | # <b> Run ends 7 am on Monday</b> | ||
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== The Hall was closed and brought to controlled access at 8pm on Thursday, February 2 == | == The Hall was closed and brought to controlled access at 8pm on Thursday, February 2 == |
Revision as of 16:34, 4 February 2017
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- Note, all non-JLab numbers must be dialed with an area code. When calling from a counting-house landline, dial "9" first.
- To call JLab phones from outside the lab, all 4-digit numbers must be preceded by 757-269
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CLAS12 KPP run, February 3 to March 3
Beam energy 6.4 GeV (3 pass)
Important: Document all your work in the logbook!
RC: Stepan Stepanyan
- (757) 575-7540
- 9 575 7540 from Counting Room
PDL: Eugene Pasyuk
- (757) 876-1789
- 9 876-1789 from Counting Room
Run Plan for February 4-5, 2017 :
Plan:
Important Notes:
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General Instructions:Locking up the hall
Establishing Acceptable Beam Conditions:
Setting up the FSD threshold
hpsrun@clonpc11> /home/hpsrun/scripts/FSD/Calc_FSD_Threshold.exe
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Every Shift:
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Every Run:
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Webcams |
Manuals |
Epics on the web
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