Revision as of 20:50, 6 November 2014

Shift-worker responsibilities

Every one taking shift should have read, understood and sign the [safety documentation] off the experiments.

Shift Leader

• Follow the runplan and communicate with RC or 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:
  • run list (describing the goal of this run: eg production on LH2, BMC calibration ...) and report main statistic numbers main stat howto
  • all major events including accesses.

Target Operator

• Watch the target, see Target Info
• Since being TO is easy, please help 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 the shift checklist ([| here]) once a shift. For guidance in filling the checklist, please see the checklist how-to ([| here]). If both the Shift Checklist and the Shift Checklist How-to need to be modified, the .doc files can be obtained from ELOG entry [| 255].

• The shift leader or TO can help.

Beam Recovery Procedure

Update:   October 24, 2010.

• Empty target, establish correct beam position
• 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.