Information for Shift Takers

Counting house: 6000(*), 5503, 6666 | Run coordinator: 757-270-8916 | MCC: 7047(*), 7046, 7048 | Crew chief: 7045 | Guard house: 8522

Before the start of your shift: read and understand the Safety Documentation for this experiment.

• You must then sign in the Yellow Binder in the Hall C Counting House!

Current Run Plans

• RC daily meetings and daily run plan for Summer 2019
• Run plans for all energies on Redmine
• Experts on call
• Beam Time Accounting quick link
• Shift Checklist quick link

Your Responsibilities

Shift Leader

• Communicate clearly and effectively with shift crews and MCC (7047), and log any status information to the HCLOG

• Maintain and update the Shift Summary detailing the events which occur while on shift
  • This is done by starting the summary as a log entry titled "X Shift Summary" where X = Day, Swing, Owl
  • Save & edit the summary after ANY event of interest occurs
  • This provides the readers with an up-to-date play by play of the current shift
  • See example: https://logbooks.jlab.org/entry/3402742

• Keep track of beam time accounting
  • More information how to work the Beam Time Accounting (BTA) web app

• Consult the daily run plans and communicate with [1] 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 and associated Safety Documentation.

• Log the following in a shift summary in the Hall C Logbook:
  • run list (describing the goal of this run: eg production on LH2, BCM calibration...) and report main statistic numbers
  • any major events, including accesses

Target Operator

• Watch the target, see Target Info

• Assist the shift leader and third person with their duties

Third person

• Make certain that the Hall-C Alarm Handler process is running. See Hall_C_Alarm_Handler.
  • If there are any alarms being ignored or silenced, find out why and enter this in the logbook.
  • Log any alarms when they occur.
• Start and stop the DAQ. Record the purpose for every single run in the "Run list" binders. Blank forms for Fall 2018 can be found here.
• Analysis instructions are given for each experiment's wiki.
• Compare replay histograms with the sample ones and report to shift leader any unexplained differences. Hclog them.
• Fill shift checklist once per shift.
  • An older Shift Checklist file, which also includes help for locating items, should be available here.