Difference between revisions of "How-to"

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(General How-to's)
(General How-to's)
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**If problems call Raster experts in order of listed on  [https://hallcweb.jlab.org/wiki/index.php/Experts_on_call#On_call_Experts Expert on call page].
 
**If problems call Raster experts in order of listed on  [https://hallcweb.jlab.org/wiki/index.php/Experts_on_call#On_call_Experts Expert on call page].
 
**Raster procedure is located at [http://opsntsrv.acc.jlab.org/ops_docs/online_document_files/MCC_online_files/hallC_target_raster_proc.pdf Hall C Fast Raster Setup Procedure]
 
**Raster procedure is located at [http://opsntsrv.acc.jlab.org/ops_docs/online_document_files/MCC_online_files/hallC_target_raster_proc.pdf Hall C Fast Raster Setup Procedure]
**The raster X and Y signals that go into the DAQ are also shown on an oscilliscope in rack CH03B14. See [https://logbooks.jlab.org/entry/3748775 logbook entry] for a movie of good oscilliscope signals. The X and Y should be 90 degrees out of phase and the amplitude variation in sync.  
+
**The raster X and Y signals that go into the DAQ are also shown on an oscilliscope in rack CH03B14.
** If raster signal's amplitude variation is not in sync, then ask MMC to go to the "Waveform Generator" page ( top right corner of the Hall C fast raster page). On the "Waveform Generator" page have MCC click on the "SYNC ARB" button.
+
** Instructions for circular raster ( not using as of AUg 2021)
** If raster signal's phase is not 90 degrees, then ask MMC to go to the "Waveform Generator" page ( top right corner of the Hall C fast raster page). On the "Waveform Generator" page have MCC click on the "SYNC PHASE" button.
+
*** See [https://logbooks.jlab.org/entry/3748775 logbook entry] for a movie of good oscilliscope signals. The X and Y should be 90 degrees out of phase and the amplitude variation in sync.
 +
*** If raster signal's amplitude variation is not in sync, then ask MMC to go to the "Waveform Generator" page ( top right corner of the Hall C fast raster page). On the "Waveform Generator" page have MCC click on the "SYNC ARB" button.
 +
*** If raster signal's phase is not 90 degrees, then ask MMC to go to the "Waveform Generator" page ( top right corner of the Hall C fast raster page). On the "Waveform Generator" page have MCC click on the "SYNC PHASE" button.
  
 
* DAQ Related Help
 
* DAQ Related Help

Revision as of 14:04, 10 August 2021

NOTE: If you can't solve the problem in 1 hour you MUST then contact the Run Coordinator! (See also Experts on call)

Polarized He3 Specific Information

General How-to's

  • Make HCLog entries using the logbook page, or by running 'hclog' in a terminal.
    • Please be concise, but clear. Assume you will need to search for, and understand, an entry 12 months from now (or longer).
  • Hall C Raster
    • If problems call Raster experts in order of listed on Expert on call page.
    • Raster procedure is located at Hall C Fast Raster Setup Procedure
    • The raster X and Y signals that go into the DAQ are also shown on an oscilliscope in rack CH03B14.
    • Instructions for circular raster ( not using as of AUg 2021)
      • See logbook entry for a movie of good oscilliscope signals. The X and Y should be 90 degrees out of phase and the amplitude variation in sync.
      • If raster signal's amplitude variation is not in sync, then ask MMC to go to the "Waveform Generator" page ( top right corner of the Hall C fast raster page). On the "Waveform Generator" page have MCC click on the "SYNC ARB" button.
      • If raster signal's phase is not 90 degrees, then ask MMC to go to the "Waveform Generator" page ( top right corner of the Hall C fast raster page). On the "Waveform Generator" page have MCC click on the "SYNC PHASE" button.

Spectrometer Magnets

How to Rotate the HMS and SHMS

SHMS Detectors

HMS Detectors

Polarized 3He target in Hall C

Hall C Cryo-target

Legacy Documentation