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| *[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/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. | | *[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. |
| + | |
| + | ==Fiber Class== |
| + | We wanted to see if there was a correlation between painting/gluing and the photon yield of the fibers. We decided to place each fiber into a separate fiber class depending on the current state of the fiber. The fiber classes are as follows: |
| + | *SG - untouched fibers from Saint Gobain |
| + | *S - straightened but not fused |
| + | *F - straightened and fused |
| + | *B - bent and never painted |
| + | *P - painted |
| + | *.5P - half painted |
| + | *U - paint removed (unpainted) |
| + | |
| + | ==Previous Procedures== |
| + | *Metal clamps and wires were previously used to secure the bundles of 15 to the fibers' popsicle sticks. We then graduated to using only one metal clamp over two 15-fiber bundles and two kapton strips per popsicle stick. |
| + | [[File:LH-FiberTesting-PopStickClamp.jpg|thumb|center|upright|The popsicle stick with clamp and wires to hold the fibers in place.]] |
| + | *We are currently working on making the paper spacings procedure easier. |
| + | [[File:LH-FiberTesting-PaperSpacers.jpg|thumb|center|upright|A view of 15 flush fibers separated with paper spacers between each row and column.]] |
| + | |
| + | *The following photos were taken before the pulser circuit was fixed (added around June 16th) and before the pulser ran on a power supply. The pulser was modified to run on a power supply on July 3rd, 2014. You can see the results of this change on the "Scramble on Power Supply" page of the [https://docs.google.com/a/uconn.edu/spreadsheets/d/1SNiHFm5fo_8yHHBrvuciXn_IRJ8aHT6QC_DbKERF3K0/edit#gid=101819727 Fiber QA Troubleshooting Google Doc] |
| + | {|style="margin: 0 auto;" |
| + | | [[File:LH-FiberTesting-Pulsar1.jpg|thumb|center|upright|Image of the fibers, mirror and pulsar from the main opening of the dark box.]] |
| + | | [[File:LH-FiberTesting-Pulsar2.jpg|thumb|center|upright|Image of the fibers, mirror and pulsar from along the fibers.]] |
| + | |[[File:LH-FiberTesting-InsideDarkBox.jpg|thumb|center|upright|View of the fibers from the main opening of the dark box. Black plastic separates the scintillating fiber end and pulsar from the chimneys and SciPMs.]] |
| + | |} |
| + | |
| + | |
| + | * The initial procedure for paper spacing was to place paper under the kapton strips, but we later found that it caused too much of a gap between the scintillators. The paper spacers were then only placed at the beginning of the S-bend. |
| + | [[File:LH-FiberQA_SciFiPaper.jpg|thumb|center|A view of the scintillating fibers directly after paper spacers have been placed and the fibers are flush.]] |