Fall 2014 Commissioning Plan
From Hall D Ops Wiki
General Information
- Goals
- Clean tune of the electron beam into the Tagger Dump
- Commissioning of the unpolarized photon beam
- Commissioning of the Hall D equipment under "soft" conditions:
- low-intensity unpolarized photon beam <10 MHz/GeV at the endpoint
- thin solid targets instead of the regular liquid hydrogen target
- solenoid current 1200 A instead of the nominal 1300 A
- Schedule and Hall Availability: The accelerator run is scheduled for 19-Sep-14 - 22-Dec-14. 3 week are assigned for Hall D commissioning with photon beam (see [1]). The tentative plan is:
- Accelerator: beam recovery and 5.5 pass beam tune to the dumplette Sep 19-29. Hall D/Tagger are open.
- Accelerator: electron beam tune to the Tagger Dump, 29-Sep-14 - 03-Oct-14. Hall D/Tagger are locked. TAGM and the electronics are removed from the Tagger Hall.
- Accelerator/Hall D: Photon beam tune to Hall D and the initial equipment checkout, Oct 4-5. Halls are locked.
- Hall D: Re-installation of the Tagger equipment (TAGM and the electronics), Oct 6-11. Halls are open.
- Hall D: Equipment commissioning with photon beam, Oct 12-31. Halls are locked.
- Expected Staffing:
- Run Coordinator: Alexandre Deur
- Online Shifts: 3 persons per shift, one with solenoid training.
- Offline Shifts: at least two people looking at data written to tape.
- Coordination Activities:
- MCC meetings at 7:50am and 8:00am
- Daily run meeting broadcast on bluejeans 10:30am?? Meeting will be in the counting house conference room.
- Links to accelerator schedules:
- Activity Priority
- High: Activity should be completed, contingencies in place for issues.
- Medium: Desirable to complete the activity.
- Low: Activity would be useful if time permits us to do it.
- Activities planned for the next run in Spring 2015:
- Installation of liquid hydrogen target.
- Installation of diamond radiator in goniometer.
- Running at 1300A solenoid current.