Electron Detector

Standard Running Procedure

with the previous beam activity ongoing (parasitically)

• Turn ON High Voltages to the e-detector
  • take a quick run to check DAQ functionality
  • check analyzer functionality
• on any cdaq machine, type StripTool and pull up strip chart of the epics variables of the 4 Hall-C Chicane BPMs
  • 3P01A (IPM3P01A.XPOS , IPM3PO1A.YPOS)
  • 3P02A (IPM3P02A.XPOS , IPM3PO2A.YPOS)
  • 3P02B (IPM3P02B.XPOS , IPM3PO2B.YPOS)
  • 3P03A (IPM3P03A.XPOS , IPM3PO3A.YPOS)

Request beam to be set through the chicane and verify the same

• Check Chicane view: on any cdaq machine type edmmonticello, from the Monticello screen
  • open Magnets -> Magnet Commander
    • 3C -> Compton Combo
    • In this Hall C Compton Control screen, the REQUESTED and ACTUAL current readbacks should be ~104 A
  • open BPM -> BPM Overview
    • open Absolute -> on the Hall C column from the left bottom of this screen
    • BPM 3P01A, 3P02A, 3P02B and 3P03A should have finite non-zero read back

Request beam to be taken off, for lowering the e-detector

• Lower the e-detector to a position in accordance with current run plan
  • Motion mechanism [[1]]
    • begin with the program Go Home
    • jog to the intended position

courtesy: Thanks to Dave Gaskell for the motivation to organize this information