Difference between revisions of "G2p shifts"

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(How Tos)
(How Tos)
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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 Spectrometer and Septa Magnets:
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*How to [https://hallaweb.jlab.org/wiki/index.php/G2pmagnets Set the Spectrometer and Septa Magnets]
There is no “regulator” on the septum magnets. You must set each one manually.
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DO NOT USE "Septum Ramp Controls".
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Use Septum Right Controls for the right side
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Use Septum Left Controls for the left side 
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'''Use "~adaq/bin/GetSeptaCurrent <P0>"  to calculate the current for P0 in GeV.'''
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<br>
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The correct “tune” for the spectrometers is “g2p/Gep_1” which you’ll see on the regulator
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controls page (The button to the right of GeV/c after the P0 set box). This determines the
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quadrupole and dipole settings for the spectrometer proper.
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Make sure the regulator is ON during normal running.
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*How to [http://hallaweb.jlab.org/halog/log/html/1203_archive/120302132459.html Cycle the Quadrupoles]  
 
*How to [http://hallaweb.jlab.org/halog/log/html/1203_archive/120302132459.html Cycle the Quadrupoles]  
 
*How to [http://hallaweb.jlab.org/wiki/index.php/g2p_slowraster_howto Set the Slow Raster]
 
*How to [http://hallaweb.jlab.org/wiki/index.php/g2p_slowraster_howto Set the Slow Raster]

Revision as of 14:46, 13 April 2012

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


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How Tos

Useful Links

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..