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Line 55:
Line 55: − *'''Check that all electronics are off before opening the dark box! Have a grad student or lab technician remove the board after opening the dark box.''' Carefully unscrew the main dark box opening and dock the popsicle stick into place by tightening the two screws underneath the popsicle stick to secure it into place. The wood has been depressed in the place where the popsicle stick should be. '''Do not modify the position of the pulsar at any point during the loading process!'''+ + + + Line 66:
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→Procedure
*After you are sure that the fibers are properly separated and flush with each other, make sure the wires and clamp is tight so that no fibers can change position.
*After you are sure that the fibers are properly separated and flush with each other, make sure the wires and clamp is tight so that no fibers can change position.
[[File:LH-FiberQA_Preamp.jpg|thumb|center]]
*'''Check that all electronics are off before opening the dark box! Have a grad student or lab technician remove the pre-amp board after opening the dark box.''' Carefully unscrew the main dark box opening and dock the popsicle stick into place by tightening the two screws underneath the popsicle stick to secure it into place. The wood has been depressed in the place where the popsicle stick should be. '''Do not modify the position of the pulsar at any point during the loading process!'''
[[File:LH-FiberQA_Darkbox.jpg|thumb|center]]
*Cover the fibers with the black cloth. Be careful not to cover the path from the mirror to the off-set bundle!
*Cover the fibers with the black cloth. Be careful not to cover the path from the mirror to the off-set bundle!
*'''A grad student or lab technician''' must put the SiPM board back into place. Do not just use your thumbs to push in the pre-amp boards as it may bend the backplane. Gently slide the board into place and screw in the chimney support until it is flush against the chimney.
*'''A grad student or lab technician''' must put the SiPM board back into place. Do not just use your thumbs to push in the pre-amp boards as it may bend the backplane. Gently slide the board into place and screw in the chimney support until it is flush against the chimney.
*Close the main dark box opening and ensure that it is light sealed.
*Close the main dark box opening and ensure that it is light sealed.
[[File:LH-FiberQA_PulserPower.jpg|thumb|center]]
[[File:LH-FiberQA_Electronics.jpg|thumb|center]]
*Turn on the power supply for the pulser and the op-amp first. Check that the voltages remain constant at 1.5 V and 10 V. Next turn on the power supply for the pre-amps and backplane electronics.
*Turn on the power supply for the pulser and the op-amp first. Check that the voltages remain constant at 1.5 V and 10 V. Next turn on the power supply for the pre-amps and backplane electronics.