Difference between revisions of "Instructions for shift takers"

Revision as of 12:38, 8 November 2014

Before you start your shift:

• Read, understand and sign the safety documentation of the experiments.

Shift-worker responsibilities

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.