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Liam Perera

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If you cannot see your sample in the imaging stream run through this checklist.

  1. Check the Shutter is Open

    1. If the Shutter fails to open check this solution

image-20240628-144210.pngImage Modified

  1. Check the beam selector is set to correct beam.

    1. The top drop-down field (user selection) and the bottom field (read back/actual beam) can become out of sync. (eg. Top says imaging but readback says diffraction).

    2. To resync - set the drop down menu to the same as the read back value and then again use the drop down menu to select the beam of choice.

image-20240628-144230.pngImage Modified

  1. Check that the camera stream is on. 

    1. Turn on camera stream (1) 
      The camera button should go light green (shown below). If it does not go green

    2. Initiate a new camera (2) 
      This should open a new window.

    3. Using stream drop down select EPICS PV Access and press connect. Once you click connect, you should see a live stream.

    4. If the imaging camera or pilatus does not initiate/turn on or icon goes red Call BL Staff.

image-20240628-144323.png

  1. Check that the exposure time is set correctly. 

    1. If the exposure is too high, the detector will max out (65K pixel count for imaging). This is not good for either detector so stop ASAP. If it is too low then the image will appear black.

  1. Check your sample in the correct position. 

    1. Rotate sample 180 degrees using GTS theta – the sample should appear in the view

    2. Check base-X is set to GTS position

    3. Check the sample height is correct. Use the laser as a guide.