2023.09.26_ Shift 1 _haelee

Excel spreadsheet for the FEL settings is here.

• Prepare the hutch for the shift
  • no gate valve in the trajectory!!!
    
  • check that all devices in the beamline are in OUT position
  • insert yag3
  • make sure all GREEN from 'Machine Protection' list
  • check 'MR1L3' mirror OUT (-6000) position (after XCS)
• 15 min before the shift begins, call ACR at x2151 to check:
  
  • photon energy : 17 keV
  • nominal pulse energy : ~300 micro-J
  • nominal pulse duration
  • beam mode : SASE
  • multiplexing : NO
    
  • e-loss scan needed : done
•  when you are beam owner (confirm with ACR), you can start the following:
  • insert YAG0 ([1] op.yag0.insert())
  • confirm FEL beam is on scale "0"
  • confirm the shape of the beam is round
  • insert YAG1 ([1] op.yag1.insert())
  • insert MR1L4 : check coating for photon energy
  • confirm on yag0 that the beam is properly deflected on the scale "8 cm"
  • remove YAG0
  • remove all Si attenuators ([1] op.SiT(1))
  • open the pulse picker ([1] op.pulse_picker("open"))
  • fine tune the pitch of MR1L4 to center the beam on YAG1
  • insert YAG3 ([1] op.yag3.insert())
  • remove YAG1
  • fine tune the pitch of MR1L4 to center the beam on YAG3
• once they are done tunning