Difference between revisions of "Run Group M"
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== <font color=blue>''' Run Plan: Jan 23 - Jan 24 2022 '''</font>== | == <font color=blue>''' Run Plan: Jan 23 - Jan 24 2022 '''</font>== | ||
− | Production runs use <b> PROD67_noVTPread </b> and the trigger <b> | + | Production runs use <b> PROD67_noVTPread </b> and the trigger <b> rgm_6GeV_inb_v1_0.trg </b>.<br/> Run duration should be no more than 100M events or 4 hours, whichever comes first. |
<b>Summary</b> | <b>Summary</b> | ||
− | * | + | * After pass change, beam checkout on tagger and then to FC |
− | * | + | * Beam position should be the same as before |
− | * | + | * Call Bob for filling the target |
− | * | + | * In the mean time flip in C target and do luminosity scan for production setting |
− | * | + | * When Ar cell is full, flip out C target and do Ar luminosity scan |
+ | * Take data on Ar | ||
Revision as of 10:45, 24 January 2022
Shift ScheduleESAD, COO, RSADShift ChecklistHot CheckoutBeam Time Accounting
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CLAS12 Run Group M, Fall 2021
Beam energies: 2.1, 4.0, 6.0 GeV (1.96 GeV/pass)
Important: Document all your work in the logbook!
RC: Florian Hauenstein
- (757) 575-7540
- 9 575 7540 from Counting Room
- hauenst@jlab.org
PDL: Valery Kubarovsky
- (757) 876-1789
- 9 876-1789 from Counting Room
- vpk@jlab.org
Run Plan: Jan 23 - Jan 24 2022
Production runs use PROD67_noVTPread and the trigger rgm_6GeV_inb_v1_0.trg .
Run duration should be no more than 100M events or 4 hours, whichever comes first.
Summary
- After pass change, beam checkout on tagger and then to FC
- Beam position should be the same as before
- Call Bob for filling the target
- In the mean time flip in C target and do luminosity scan for production setting
- When Ar cell is full, flip out C target and do Ar luminosity scan
- Take data on Ar
DAQ configuration PROD67_noVTPread , production trigger rgm_2GeV_out_No_Dc_Roads_v1.1.trg / At the end of each run, follow the STANDARD DAQ RESTART SEQUENCE
Announcements
The integrated rates on the upstream counters have to be in the range 0-15 Hz (rates up to 100 Hz are acceptable) and the rates on the midstream counters have to be in the range 10-20 Hz (acceptable up to 50 Hz) @50 nA. Counting rates in the range of hundreds of Hz may indicate a bad beam tune or bleed-through from other Halls.
References and Standards:(last update 01/18/2022- 23:30 Nominal Beam Positions
FSD Thresholds
Reference Harp Scans for Beam on Faraday Cup: 2H01 [1] Reference Harp Scans for Beam on Tagger dump: 2C21 [2], tagger harp [3] Reference Monitoring Histograms (6 nA, production C) [4] Old reference Monitoring Histograms (50 nA, production LD2) [5] Counter rates
Beamline vacuum: should be not higher than 5e-5.
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