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'''If the electronics are powered and the dark box is open, the siliconphotomultipliers WILL be damaged''', so it is very important to make sure electronics are off before the dark box is opened.
'''If the electronics are powered and the dark box is open, the siliconphotomultipliers WILL be damaged''', so it is very important to make sure electronics are off before the dark box is opened.
Troubleshooting of the QA Procedure required multiple runs of the fibers. The results of those runs were motivations for changes to the testing procedure including: modification to the pulser circuit, modification to the pulser power source, standardized methods of placing the fibers into the chimneys, and consideration of temperature in analyzing photon yield. The results of these preliminary tests can be found below:
*[https://docs.google.com/a/uconn.edu/spreadsheets/d/11dipDk7WZ5PHp3xFHyUtVzUyJhcY9ewnyDf5FEbtbig/edit?usp=drive_web Ann Marie's Troubleshooting Tests] before the pulser circuit was modified
*[https://docs.google.com/a/uconn.edu/spreadsheets/d/1SNiHFm5fo_8yHHBrvuciXn_IRJ8aHT6QC_DbKERF3K0/edit#gid=101819727 Liana's Troubleshooting Tests] after the pulser circuit was modified
*[https://docs.google.com/a/uconn.edu/document/d/1mGxw-1p69iodf4hJz1tTTfBxgvfdGpDbZynqvXzYCLc/edit# Liana's Work Journal] and [http://zeus.phys.uconn.edu/wiki/index.php/LH_Summer_2014 Liana's Summer Wiki Page] accompany her Troubleshooting tests which describes more in-depth the thought process and steps behind each run.
==Procedure==
==Procedure==
[[File:LH-FiberTesting-CleanRoom.jpg|thumb|right|upright|The ventilated clean room with a workbench, the dark box, and all necessary electronics.]]
[[File:LH-FiberTesting-CleanRoom.jpg|thumb|right|upright|The ventilated clean room with a workbench, the dark box, and all necessary electronics.]]
*Before taking any fibers out of the dark room, open the [https://docs.google.com/a/uconn.edu/spreadsheets/d/1SNiHFm5fo_8yHHBrvuciXn_IRJ8aHT6QC_DbKERF3K0/edit#gid=305404515| Fiber testing spreadsheet]. Each bundle has a separate tab which you can view the alignments required for each run.
*Before taking any fibers out of the dark room, open the [https://docs.google.com/a/uconn.edu/spreadsheets/d/1T4NUSQO_keT0QckCx4rWlbMW7Yot4vb-Z1eqrM1l94k| Fiber QA] Google Doc. Each bundle has a separate tab which you can view the alignments required for each run.
*Before selecting fibers from their dark room, don a pair of powder free gloves and place the popsicle stick with the testing clamp at the table you will be working.
*Before selecting fibers from their dark room, don a pair of powder free gloves and place the popsicle stick with the testing clamps at the table you will be working.
*Note which fibers are to be tested during the run and take only those fibers out of the dark room.
*Note which fibers are to be tested during the run and take only those fibers out of the dark room.
**If someone is in the conference room, the clean room is a good alternative.
**If someone is in the conference room, the clean room is a good alternative.
*Using the matrix in the spreadsheet as a guide, split the fibers in to the appropriate 3 columns of 5 fibers.
*Using the matrix in the spreadsheet as a guide, split the fibers in to the appropriate columns of 5 fibers each.
*Start with one column and put the fibers from that column in their appropriate order per the matrix on the spreadsheet.
*Start with one column and put the fibers from that column in their appropriate order per the matrix on the spreadsheet. It is best to start with the offset 15 fibers first.
*Continue this process with the remaining two columns.
*Continue this process with the remaining columns.
*Once the fibers are in the order they belong, begin placing them in the clamp on the popsicle stick.
*Once the fibers are in the order they belong, begin placing them in the clamp on the popsicle stick.