Difference between revisions of "Harp scan plan"

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(Perform accelerator harp scans)
(Perform radiator harp scan)
 
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== Perform radiator harp scan  ==  
 
== Perform radiator harp scan  ==  
  
# Perform radiator harp scan as described in [https://halldweb.jlab.org/hdops/wiki/index.php/Beam_Line_Detectors_Shift#Radiator_Harp_Scan this wiki page]
 
 
# Ask for 200 nA CW beam
 
# Ask for 200 nA CW beam
 +
# Perform radiator harp scan as described in [https://halldweb.jlab.org/hdops/wiki/index.php/Beam_Line_Detectors_Shift#Radiator_Harp_Scan this wiki page]
  
 
== Restore Production conditions ==
 
== Restore Production conditions ==

Latest revision as of 19:23, 3 March 2020


Set up harp scan

  1. Ask MCC to stop beam delivery in preparation for harp scans
  2. Remove all radiators (BLANK or RETRACTED)
  3. Move collimator to blocking position

Perform accelerator harp scans

  1. Ask MCC for three harp scans: 5C11, 5C11B with 1 uA of tune beam
    • Remind MCC that all three should be done with tune beam

Perform radiator harp scan

  1. Ask for 200 nA CW beam
  2. Perform radiator harp scan as described in this wiki page

Restore Production conditions

  1. Ask MCC to take beam away and mask FSD for radiator movement
  2. Insert desired radiator (e.g., diamond or 3x10^-4 RL amorphous)
  3. Amorphous radiator retracted
  4. Move collimator to 5.0 mm diameter hole (can be done in parallel with previous steps)
  5. Ask for the appropriate current CW beam to be restored
  6. Refer to this wiki page for standard production conditions