Difference between revisions of "Template:ShortTermSchedule-RGE"
Line 17: | Line 17: | ||
| valign=top width=50% | | | valign=top width=50% | | ||
− | ========= Preparation for Beam =========== | + | ========= Preparation for Beam after recovery =========== |
In order to reach the requested energy a slight different beam is being tuned and hopefully is available by the OWL shift. | In order to reach the requested energy a slight different beam is being tuned and hopefully is available by the OWL shift. | ||
Line 26: | Line 26: | ||
* DC should have the HV off | * DC should have the HV off | ||
Request 5 nA and check the beam position check that there are no trips of FSD | Request 5 nA and check the beam position check that there are no trips of FSD | ||
− | |||
− | |||
If positions look OK and FSD doesn't trip restore the tracking. | If positions look OK and FSD doesn't trip restore the tracking. | ||
− | If things have returned to nominal values the current can be returned to the settings for carbon 85 nA | + | If things have returned to nominal values the current can be returned to the settings for carbon 85 nA. |
+ | It it may be useful to request beam in steps so that one can see that higher currents are not causing problems. | ||
If the beam is not acceptable Eugene asked to be called to help establishing good beam. | If the beam is not acceptable Eugene asked to be called to help establishing good beam. |
Revision as of 13:41, 9 April 2024
Run Coordinator: Kevin Giovanetti (757) 575-7540
PDL: Nathan Baltzell (757) 876-1789, Office: x5902
Important Notes
- In case of medical or fire emergency, call 9-911 from a LANDLINE phone in the Counting House and inform the Crew Chief and RC.
- In case of evacuation of the Counting Room (e.g., due to a fire alarm), grab the shift expert phone and leave the room through the "EXIT" door leading to the parking lot. Do not leave through the hallway! Call the RC once outside so the latter will call MCC to turn the beam OFF to Hall B and inform other Hall B staff members.
- If you have symptoms or a positive COVID test, do NOT come to your shift - instead, inform the PDL and the RC and JLab medical services immediately to arrange replacements.
Please put all essential information on the main hall B log HBLOG. Some important alarms have been documented on HBRUN. Use the pull down menu to choose where an error is reported.
=== Preparation for Beam after recovery =====In order to reach the requested energy a slight different beam is being tuned and hopefully is available by the OWL shift. All the tracking detectors need to be prepared for beam tuning.
Request 5 nA and check the beam position check that there are no trips of FSD If positions look OK and FSD doesn't trip restore the tracking. If things have returned to nominal values the current can be returned to the settings for carbon 85 nA. It it may be useful to request beam in steps so that one can see that higher currents are not causing problems. If the beam is not acceptable Eugene asked to be called to help establishing good beam. Production data taking
In case of the need to manipulate the whole target system - cryotarget or solids - please contact the target experts. LD2+C runs
For information on triggers, please see here: https://logbooks.jlab.org/entry/4267187 Long term run plan [1] |
ReferencesBPM Positions
Harp ScansFSD ThresholdsDo NOT change FSD settings without approval from RC or beamline expert!
Charge Asymmetry |
General Reminders
|
DAQ Operation
|