9.4.2.0 Spatio-temporal alignment procedure

test:Excel spreadsheet for the FEL settings is here.

• Spatial overlap

  • move to target

    op.move_to_target(config="coliner", frame_cfg=[1, "F1", 1, "F2", 1, "F3"], frame=2, target="A2")

• • send drive at low power to check overlap

    op.HWPon("all", set_T=0)

• • move hexapod X to confirm overlap of both set of beams and have them centered on X-ray cross at (342, 561)

• • then align the VISAR Z focus to make sure the image is round and sharp (could be set to the value by using the right equation as well)

• Take a reference

  op.ref_only(
  	xray_trans=0.2,
  	xray_num=5,
  	shutters=False,
  	dark=0,
  	daq_end=True,
  	calibrant="",
  	rate=1,
  	visar=True,
  	save=True,
  	slow_cam=False
  )

• Take a shot

  op.optical_shot(
  	shutter_close=[1, 2, 3, 4, 5, 6],
  	lpl_ener=0.3,
  	timing=5.0e-9
  	xray_trans=1,
  	xray_threshold=0.2,
  	save=True,
  	daq_end=True,
  	auto_trig=True,
  	auto_charge=True,
  	visar=True,
  	debug=False,
  	ps_opt=True
  )

• Temporal overlap
  
  • go to Ti sample

    op.ti()