• Responsible personnel: Adam
• Date: February xx, 2019

Description of test

Test Procedure

• Turn on EPICS IOC
• Use ImageJ to connect to camera
• Remove baffles and other covers on camera
• Make sure that viewscreen is inserted
• Focus lens while watching ImageJ
• Adjust aperture on camera so that it is ~1/8th turn from maximally closed. i.e. very little light
• Adjust focusing again, possibly using flashlight to illuminate.
• Save picture that includes screen and assembly that is holding the screen, for later analysis.
• Later, in ImageJ, draw oval around holding assembly and get width and height in pixels
• Make sure that height / width ~ sqrt(2), since the camera is tilted at 45 degrees
• Compare to drawing of viewscreen assembly, and produce calibration number in units of mm/pixel
• Record the calibration number in an elog, and use beamview to enter into EPICS.
• Make sure that autosave records are made properly, such that this value is reloaded when IOC restarts.

• Using a flashlight held to one side, make sure that L/R and Up/Down are correct in beamview.
• Use offsets and rotations to center and correctly align the image (center and align the fixture holding the viewscreen.)