G2p shifts
From Hall A Wiki
Information for Shift Workers
- Expert contact list of phone numbers
- Runplan and Schedule
- Online Replay Guide
- The g2p DAQ
- The g2p Analysis Guide
- Setting the Spectrometer and Septa Magnets
- Conversion between Septa Current and Momentum (P_to_I) and (I_to_P)
- Quadrupole Cycling for g2p
- Run Sheets (LHRS RHRS)
- Shift Checklist (pdf)
- Slow Raster Procedure
- Hall A Dump Camera Light
- How to check Bleed-thru
Useful Links
- Beamline Component locations
- Chicane Positions
- MCC Whiteboard +offsite access to logs (courtesy Brad)
- Hall A logbook
- g2p wiki
- d2n HowTo (Please note some info is out of date).
- Spring11 HowTo (Please note some info is out of date).
- Online Replay Guide (detailed) (Old Transversity Guide) (Please note some info is out of date).
- An example of an excellent Shift Leader Summary for reference.
- Hall A Moller
Notes
- Ask for beam off when modifying Septa Current, moving target or modifying target magnetic field.
- The Coda configuration is: LHRSHAP, RHRSBUFF
- Log VDC efficiencies at least once per shift.
- Hall A current : Open Monticello / Wall / Hall A GUI, and look at the 1H00 BCM.
- For Hall A tools screen, on hacuser type "NewTools" which pops up EOSMenu. Select "HLAmain".
- For Stripchart, click toolbox on bottom of desktop menu
- Keep a stripchart running of the septa currents.
- Note: There is *always* one transitor fault on the right septa (bigbite powersupply).
- Note: IHWP1 flips the beam helicity. IHWP2 is passive (actually a full wave plate) and will not flip the helicity. The status of both should be recorded. The epics var for IHWP2 is IGL1I00DIOFLRD :13056 means the passive wave-plate is in. 8960 is out..
