Difference between revisions of "Tuesday, March 23: OWL Shift"
From Hall A Wiki
(New page: Go back to Daily Run Plan Daily Run Plans * General considerations ** Brad Sawatzky is the current Run Coordinator. Please contact directly via RC phone 757-876-1787 ** Follow the gene...) |
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* Instructions for this shift | * Instructions for this shift | ||
| − | ** | + | ** 1) When beam first arrives to the Hall |
| − | 1) When beam first arrives to the Hall | + | *** - Ask MCC to run the Harps: 1C18A/B and 1C04A/B |
| − | + | *** - halog the results | |
| − | + | ** 2) Confirm the beam position using the carbon hole target. | |
| − | 2) Confirm the beam position using the carbon hole target. | + | ** 3) Run the right arm optic scan described here: |
| − | 3) Run the right arm optic scan described here: | + | ** Here is the run plan for the R-HRS Q1 tune. This can be done before |
| − | + | ** moving to LH2 target for DVCS running. | |
| − | + | *** 1. Move target to Optics | |
| − | + | *** 2. Set P0= 1.0 GeV/c, Q1 current = 192 A | |
| − | + | *** 3. Set R-HRS prescale ps1=1, others=0 (should be already set, but check) | |
| − | + | *** 4. Assuming 20uA beam current, take 5 min (or ~100k events) run for each of these Q1 currents: | |
| − | + | ** Q1 current: | |
| − | + | *** 192 A | |
| − | + | *** 202 A | |
| − | + | *** 223 A | |
| − | + | *** 234 A | |
| − | + | ** 5. Move to LH2 target to continue DVCS runs | |
| − | + | ** 6. Change R-HRS P0 = 1.896 GeV (need to cycle Q2/Q3) | |
| − | + | ** 7. Set Q1 current to 403.8 A | |
| − | + | ** 8. When D1 is ready start R-HRS runs. | |
| − | + | ** 9. halog all the run numbers with Q1 current | |
| − | + | ||
| − | + | ||
| − | + | ||
***[https://hallaweb.jlab.org/wiki/index.php/Beamline Beamline commissioning how-to.] | ***[https://hallaweb.jlab.org/wiki/index.php/Beamline Beamline commissioning how-to.] | ||
Revision as of 23:11, 23 March 2015
Go back to Daily Run Plan Daily Run Plans
- General considerations
- Brad Sawatzky is the current Run Coordinator. Please contact directly via RC phone 757-876-1787
- Follow the generic Instructions for shift takers
- Shift leaders: Please make sure to fill out the beam time accounting form and write a "Shift Summary" log entry at the end of your shift regardless if there is beam or not.
- In general, Hall technical staff should not be contacted by the shift crew - please call the RC first.
- The target operator is required to supervise the cryo-target.
- Make sure to use the DVCS CODA configuration for all runs (even when taking single arm HRS data).
- Instructions for this shift
- 1) When beam first arrives to the Hall
- - Ask MCC to run the Harps: 1C18A/B and 1C04A/B
- - halog the results
- 2) Confirm the beam position using the carbon hole target.
- 3) Run the right arm optic scan described here:
- Here is the run plan for the R-HRS Q1 tune. This can be done before
- moving to LH2 target for DVCS running.
- 1. Move target to Optics
- 2. Set P0= 1.0 GeV/c, Q1 current = 192 A
- 3. Set R-HRS prescale ps1=1, others=0 (should be already set, but check)
- 4. Assuming 20uA beam current, take 5 min (or ~100k events) run for each of these Q1 currents:
- Q1 current:
- 192 A
- 202 A
- 223 A
- 234 A
- 5. Move to LH2 target to continue DVCS runs
- 6. Change R-HRS P0 = 1.896 GeV (need to cycle Q2/Q3)
- 7. Set Q1 current to 403.8 A
- 8. When D1 is ready start R-HRS runs.
- 9. halog all the run numbers with Q1 current
- 1) When beam first arrives to the Hall
