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Tagger microscope prototype construction (view source)
Revision as of 20:02, 13 May 2008
, 20:02, 13 May 2008→Transmission Testing
* The second adds the use of the three buffer boards
* The second adds the use of the three buffer boards
* The third adds stripping the cladding before polishing.
* The third adds stripping the cladding before polishing.
The reason for the multiple cuts of the fibers is to increase the loss of photons. The increased loss of photons will make it easier to identify small changes in the transmission rate between the fibers polished the three different ways. Being tested right now is the rough polished fiber. Testing is not yet complete but preliminary rough estimates show that there is approximately a 73% transmission through the rough fiber compared to the control. A graph and proper analysis will be posted by Wednesday.
The reason for the multiple cuts of the fibers is to increase the loss of photons. The increased loss of photons will make it easier to identify small changes in the transmission rate between the fibers polished the three different ways.
* Note: This is only testing the relative transmission rates. All percentages of transmission loss is acquired by comparing to the control fiber. Also, the epoxy used for these tests is 20-3238.
* Note: This is only testing the relative transmission rates. All percentages of transmission loss is acquired by comparing to the control fiber. Also, the epoxy used for these tests is 20-3238.
*'''Current Results'''
We tested the control fiber several times and each time we got a significantly different result. Below we see a histogram of the control fiber whose test length was about 48 hours and a graph comparing the different tests of the control fiber.
*Solution to Problem
We redesigned the "thermal finger" for holding the two different SiPMs. The designs are seen below.
== Gluing ==
== Gluing ==