Difference between revisions of "Wednesday, March 25: DAY Shift"
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(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 | ||
** 0) <b>Check the beam position</b> | ** 0) <b>Check the beam position</b> | ||
| − | *** - request beam position: BPM A=(+2.5:-0.5), BPM B=(+2.5:+0.5) | + | *** - request beam position: BPM A=(+2.5:-0.5), BPM B=(+2.5:+0.5) ---- <b> please double check </b> |
** 1) <b>When beam first arrives to the Hall</b> | ** 1) <b>When beam first arrives to the Hall</b> | ||
*** - Ask MCC to run the Harps: 1C18A/B and 1C04A/B | *** - Ask MCC to run the Harps: 1C18A/B and 1C04A/B | ||
| Line 19: | Line 19: | ||
*** - check the scaler rate rastered target up to 2x2 (make sure T1 & T3 20Hz) | *** - check the scaler rate rastered target up to 2x2 (make sure T1 & T3 20Hz) | ||
| − | + | <b>Elastic Calibration of the DVCS Calorimeter</b> | |
| − | + | ||
| − | + | * 1. Move to LH2 target to continue DVCS runs | |
| + | * 2. Change R-HRS P0 = 1.896 GeV (need to cycle Q2/Q3) - (turn off regulator for Q2/Q3, set I =1600A. turn on regulator) | ||
| + | * 3. Set Q1 current to 403.8 A | ||
** 1) <b>Turn on DVCS HV</b> | ** 1) <b>Turn on DVCS HV</b> | ||
Latest revision as of 11:35, 25 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
- 0) Check the beam position
- - request beam position: BPM A=(+2.5:-0.5), BPM B=(+2.5:+0.5) ---- please double check
- 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.
- - request CW 5uA without raster
- - check the scaler rate rastered target up to 2x2 (make sure T1 & T3 20Hz)
- 0) Check the beam position
Elastic Calibration of the DVCS Calorimeter
- 1. Move to LH2 target to continue DVCS runs
- 2. Change R-HRS P0 = 1.896 GeV (need to cycle Q2/Q3) - (turn off regulator for Q2/Q3, set I =1600A. turn on regulator)
- 3. Set Q1 current to 403.8 A
- 1) Turn on DVCS HV
- 2) Move to LH2, 1x1 raster, 10uA CW
- - Take 2 1hr runs with DVCS DAQ
- - After the first run finished, page Carlos. He will change the calorimeter to the 2nd elastic setting
