Difference between revisions of "Wednesday, April 29: SWING Shift"

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(New page: Go back to Daily Run Plan Daily Run Plans * General considerations ** Luke Myers is the current Run Coordinator. Please contact directly via RC phone 757-876-1787 ** Follow the generic...)
 
 
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** Note: Keep an eye on the white board in CC more detail
 
** Note: Keep an eye on the white board in CC more detail
  
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** 1. After finishing bulls-eye scan runs  move to "optics" target
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* Detailed instructions [https://hallaweb.jlab.org/wiki/index.php/Spectrometer_Optics_2pass_48d#Delta_Scan_with_Proton_Elastic here]
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** 2. For optics we will use only Right-HRS DAQ
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** 3. Make sure the BPM A and BPM D readings are at the nominal position (check white board)
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<b>Harp Check</b>
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** 4. Set the prescale factors on Right HRS to ps1=1 and rest to zero
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** 5. Take one CODA run each for the following settings on Q1 current on Right HRS.
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* Ask MCC to run the four harps in the ARC (these are named 1C07A, 1C07B and 1C18A, 1C18B)
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*** - We need at least 10 K good electron events (determined by an expert in the backroom)
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** Current should be limited to 5 uA for this test
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**** Q1 current = 0 A
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* Make sure that each harp scan shows three clear peaks
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**** Q1 Current = 167.7375 A
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** 6. Change Right-HRS Q1 current to 153.36 A
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** 7. Take a CODA run with Right HRS. We need at least 100 K electron events (determined by an expert)
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***[https://hallaweb.jlab.org/wiki/index.php/Beamline Beamline commissioning how-to.]
 
***[https://hallaweb.jlab.org/wiki/index.php/Beamline Beamline commissioning how-to.]

Latest revision as of 15:39, 29 April 2015

Go back to Daily Run Plan Daily Run Plans

  • General considerations
    • Luke Myers is the current Run Coordinator. Please contact directly via RC phone 757-876-1787
    • Follow the generic Instructions for shift takers
    • Shift leaders: Please make sure to fill out the beam time accounting form and write a "Shift Summary" log entry at the end of your shift regardless if there is beam or not.
    • In general, Hall technical staff should not be contacted by the shift crew - please call the RC first.
    • The target operator is required to supervise the cryo-target.
    • Make sure to use the DVCS CODA configuration for all runs (even when taking single arm HRS data).

Delta Scans

    • Note: Keep an eye on the white board in CC more detail
  • Detailed instructions here

Harp Check

  • Ask MCC to run the four harps in the ARC (these are named 1C07A, 1C07B and 1C18A, 1C18B)
    • Current should be limited to 5 uA for this test
  • Make sure that each harp scan shows three clear peaks
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