Difference between revisions of "G2p shifts"
From Hall A Wiki
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*How to [http://hallaweb.jlab.org/halog/log/html/1203_archive/120312165203.html check Bleed-thru] | *How to [http://hallaweb.jlab.org/halog/log/html/1203_archive/120312165203.html check Bleed-thru] | ||
*Target [https://hallaweb.jlab.org/wiki/index.php/Target_Troubleshooting_Procedures Troubleshooting] and [https://hallaweb.jlab.org/wiki/index.php/Solid_Polarized_Target target overview] | *Target [https://hallaweb.jlab.org/wiki/index.php/Target_Troubleshooting_Procedures Troubleshooting] and [https://hallaweb.jlab.org/wiki/index.php/Solid_Polarized_Target target overview] | ||
| − | *Setting the | + | *Setting the Spectrometer and Septa Magnets: |
| − | *Conversion between Septa Current and Momentum | + | 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 | ||
| + | <br> | ||
| + | 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. | ||
| + | |||
| + | *Conversion between Septa Current and Momentum([http://hallaweb.jlab.org/halog/log/html/1203_archive/120303134343.html I_to_P]) | ||
*[http://hallaweb.jlab.org/halog/log/html/1203_archive/120302132459.html Quadrupole Cycling] for g2p | *[http://hallaweb.jlab.org/halog/log/html/1203_archive/120302132459.html Quadrupole Cycling] for g2p | ||
*[http://hallaweb.jlab.org/wiki/index.php/g2p_slowraster_howto Slow Raster Procedure] | *[http://hallaweb.jlab.org/wiki/index.php/g2p_slowraster_howto Slow Raster Procedure] | ||
Revision as of 17:33, 29 March 2012
This page is updated frequently. Please hit Reload at least once per shift.
(Halog) (tlog)(g2pwiki) (ShiftSchedule) (MCC) (bta) (LSummary) (RSummary)
- Today's runplan, and the longterm Schedule
- Expert contact list and Expert Shifts
- Run Sheets (pdf) and Shift checklist
How Tos
- 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
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.
- Conversion between Septa Current and Momentum(I_to_P)
- Quadrupole Cycling for g2p
- Slow Raster Procedure
- How to check IHWP change in state and alarm
- Hall A Dump Camera Light
- Online Replay Guide
- The g2p DAQ
- The g2p Analysis Guide
- How to setup the IHWP Alarm Handler
Useful Links
- 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).
- An example of an excellent Shift Leader Summary for reference.
- 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: LHRSHAP, RHRSBUFF
- 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..
