G2p shifts

This page is updated frequently. Please hit Reload at least once per shift.

(Halog) (tlog)(g2pwiki) (ShiftSchedule) (MCC) (bta) (LSummary) (RSummary)

• Today's runplan
• Expert contact list and Expert Shifts
• Run Sheets (pdf) and Shift checklist

How Tos

• How to make vertical correction to target insert
• How to take HARP scan
• How to recover BPM positions after a long beam trip or tune change
• How to recover the beam G2p-beam-recovery
• How to check Bleed-thru
• Target Troubleshooting and target overview
• Setting the Spectrometer and Septa Magnets:

There is no “regulator” on the septum magnets. You must set each one manually.
DO NOT USE "Septum Ramp Controls". 
Use Septum Right Controls for the right side 	
Use Septum Left Controls for the left side  
Use "~adaq/bin/GetSeptaCurrent <P0>"  to calculate the current for P0 in GeV.


The correct “tune” for the spectrometers is “g2p/Gep_1” which you’ll see on the regulator
controls page (The button to the right of GeV/c after the P0 set box). This determines the
quadrupole and dipole settings for the spectrometer proper.
Make sure the regulator is ON during normal running.

• How to Cycle the Quadrupoles
• How to Set the Slow Raster
• How to check IHWP change in state and alarm
• How to control the Hall A Dump Camera Light

Useful Links

• Online Replay Guide
• The g2p DAQ
• The g2p Analysis Guide
• Beamline Component locations
• Chicane Positions
• MCC Whiteboard +offsite access to logs (courtesy Brad)
• d2n HowTo (Please note some info is out of date).
• Spring11 HowTo (Please note some info is out of date).
• Online Replay Guide (detailed) (Old Transversity Guide) (Please note some info is out of date).
• mysql Run Database for gep/g2p
• Hall A Moller

Notes

• PLEASE make sure to acknowledge the DAQ popup messages for Start and End of every run.
• Log VDC efficiencies at least once per shift.
• The Coda configuration is: LHRS, RHRS
• 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: 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..