Is there an issue? Escalation Path
- Spatial overlap of the optical lasers (drive and VISAR) with X-rays
Start by moving to the desired target (refer to the python manual here for details on the arguments)
op.move_to_target(config="coliner", frame_cfg=[1, "F1", 1, "F2", 1, "F3"], frame=2, target="A2")
Continue by checking the alignment of the drive lasers
Set the system in a mode where the laser energy is minimum, the filter is removed from questar 1 and the trigger is enabled
op.check_front_alignment()
- Confirm you see a scattering signal close to the X-ray cross (342, 561)
Move the hexapod X axis to center the beams on the cross and produce a round scattering signal
x.hex_x.umvr(50e-6)
- Continue by checking the alignment of the VISAR system
Adjust the VISAR Z axis to make sure the image is round and sharp (could be set to the value by using the right equation as well)
x.visar_z.umvr(50e-6)
Alternatively, move the Z value by exactly the hitckness of the ablator + material of interest and add the change in position due to the visar window. To calculate the change use the following command
op.visar_window_compensation(material="LiF", thickness=400e-6)
- Continue by checking the alignment of the VISAR system
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()
- remove the Be CRL
open slit4 to 400 mic
op.slit4.move(0.4)
set full X-ray transmission
op.SiT(1)
open the pulse picker
op.pp.open()