Difference between revisions of "Instructions for shift takers"
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== Shift-worker responsibilities == | == Shift-worker responsibilities == | ||
| − | Read, | + | Read, understand and sign the [https://hallaweb.jlab.org/wiki/index.php/Shift_safety_documents safety documentation] of the experiments. |
'''Shift Leader''' | '''Shift Leader''' | ||
| + | |||
| + | * Communicate clearly and effectively with shift crews and MCC, and log any status information to the [http://logbooks.jlab.org/book/halla HALOG] | ||
| + | |||
| + | * Keep track of [https://bta/ beam time accounting] | ||
* Consult the [[Daily Run Plans|daily run plans]] and communicate with [https://misportal.jlab.org/mis/physics/shiftSchedule/?experimentRunId=HALLA-FALL2014 run coordinator] and [[Expert Shift Schedule|experts]] whenever problems happen that cannot be solved by shift workers. | * Consult the [[Daily Run Plans|daily run plans]] and communicate with [https://misportal.jlab.org/mis/physics/shiftSchedule/?experimentRunId=HALLA-FALL2014 run coordinator] and [[Expert Shift Schedule|experts]] whenever problems happen that cannot be solved by shift workers. | ||
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* Compare replay histograms with the sample ones and report to shift leader any unexplained differences. Halog them. | * Compare replay histograms with the sample ones and report to shift leader any unexplained differences. Halog them. | ||
| − | * Fill [https://hallaweb.jlab.org/wiki/images/8/81/Shift_Checklist.pdf | + | * Fill [https://hallaweb.jlab.org/wiki/images/8/81/Shift_Checklist.pdf shift checklist] once per shift (for guidance, please see the [https://hallaweb.jlab.org/wiki/images/2/2e/Shift_Checklist_HowTo.pdf checklist how-to]). If both the Shift Checklist and the Shift Checklist How-to need to be modified, the original .doc files can be obtained from [https://hallaweb.jlab.org/dvcslog/12+GeV/255 | DVCS ELOG entry 255]. |
* The shift leader or TO can help. | * The shift leader or TO can help. | ||
Revision as of 12:37, 8 November 2014
Shift-worker responsibilities
Read, understand and sign the safety documentation of the experiments.
Shift Leader
- Communicate clearly and effectively with shift crews and MCC, and log any status information to the HALOG
- Keep track of beam time accounting
- Consult the daily run plans and communicate with run coordinator and experts whenever problems happen that cannot be solved by shift workers.
- Maintain data taking quality and an efficient use of beam time.
- Follow the directives in the COO
- Log the following in a shift summary in the HALOG:
- run list (describing the goal of this run: eg production on LH2, BMC calibration...) and report main statistics numbers
- any major events, including accesses
Target Operator
- Watch the target, see Target Info
- Assist the shift leader and third person
Third person
- Start and stop the DAQ.
- Do online replay of all production runs;
- Compare replay histograms with the sample ones and report to shift leader any unexplained differences. Halog them.
- Fill shift checklist once per shift (for guidance, please see the checklist how-to). If both the Shift Checklist and the Shift Checklist How-to need to be modified, the original .doc files can be obtained from | DVCS ELOG entry 255.
- The shift leader or TO can help.
Beam Recovery Procedure
Update: October 24, 2010.
- Empty target, establish correct beam position</li>
- 5 uA empty target
- BPM4A (X,Y) = ( 0.0, 0.0) mm
- BPM4B (X,Y) = ( 0.0, 0.0) mm
- See white board for updates on these.
- Tolerances on these : +/- 0.3 mm
- In standard configuration we run without the raster (ok on cryotarget if beam current is less than 5uA)
- Put in BeO target, for visual check of spot (if camera still works)
- 10 uA rastered beam on BeO.
