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==Procedure==
==Procedure==
[[File:LH-FiberTesting-CleanRoom.jpg|thumb|left|upright|The ventilated clean room with a workbench, the dark box, and all necessary electronics.]]
[[image:LH-FiberTesting-CleanRoom.jpg|250px]]
*Before taking any fibers out of the dark room, open the [https://docs.google.com/spreadsheets/d/11dipDk7WZ5PHp3xFHyUtVzUyJhcY9ewnyDf5FEbtbig/edit| Fiber testing spreadsheet] and click on the tab titled "Fiber Tests 2." In this tab, the fibers to be tested have been put in the appropriate chimney slot column and in the matrix placement of fibers.
*Before taking any fibers out of the dark room, open the [https://docs.google.com/spreadsheets/d/11dipDk7WZ5PHp3xFHyUtVzUyJhcY9ewnyDf5FEbtbig/edit| Fiber testing spreadsheet] and click on the tab titled "Fiber Tests 2." In this tab, the fibers to be tested have been put in the appropriate chimney slot column and in the matrix placement of fibers.
**This step will take two people. One person should place the fibers, while the other should hold them in place once they are placed. This way fibers will stay in their appropriate positions.
**This step will take two people. One person should place the fibers, while the other should hold them in place once they are placed. This way fibers will stay in their appropriate positions.
[[image:LH-FiberTesting-PopStickClamp.jpg|250px]]
[[File:LH-FiberTesting-PopStickClamp.jpg|thumb|center|upright|The popsicle stick with clamp and wires to hold the fibers in place. We're working on a different model which would use mylar to hold the fibers down.]]
*Loosen the clamp and move it down over the fibers. Tighten it enough so they do not slip but not too tight as to make it impossible to add paper spacers in the near future. Also use the wires that are going through the holes in the popscile stick to your advantage. Tightening them around the fibers will do a good job of keeping the fibers in place.
*Loosen the clamp and move it down over the fibers. Tighten it enough so they do not slip but not too tight as to make it impossible to add paper spacers in the near future. Also use the wires that are going through the holes in the popscile stick to your advantage. Tightening them around the fibers will do a good job of keeping the fibers in place.
*Next, put strips of paper between each of the 3 columns. These strips of paper do not need to go far back, just far enough that they will not block any light from the pulser getting to the fiber face.
*Next, put strips of paper between each of the 3 columns. These strips of paper do not need to go far back, just far enough that they will not block any light from the pulser getting to the fiber face.
[[image:LH-FiberTesting-PaperSpacers.jpg|250px]]
[[File:LH-FiberTesting-PaperSpacers.jpg|thumb|center|upright|A view of 15 flush fibers separated with paper spacers between each row and column.]]
*The next step is to put spacers in the middle of the s-bend in the fibers for both columns and rows.
*The next step is to put spacers in the middle of the s-bend in the fibers for both columns and rows.
*Once each fiber has been pushed into the rigid material, the fibers should be held in place by twisting the wire tightly around them. The rigid material should be carefully moved away to determine if the fibers are flush. If not, repeat the process again.
*Once each fiber has been pushed into the rigid material, the fibers should be held in place by twisting the wire tightly around them. The rigid material should be carefully moved away to determine if the fibers are flush. If not, repeat the process again.
*
{|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.]]
|}
[[image:LH-FiberTesting-Pulsar1.jpg|250px]][[image:LH-FiberTesting-Pulsar2.jpg|250px]][[image:LH-FiberTesting-Pulsar3.jpg|250px]]
[[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.]]