Page History

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• •  

    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

      Code Block
      language py theme RDark linenumbers true
      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

      Code Block
      language py theme RDark linenumbers true
      x.tghex_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)

      Code Block
      language py theme RDark linenumbers true
      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

      Code Block
      language py theme RDark linenumbers true
      op.visar_window_compensation(material="LiF", thickness=400e-6)

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