Difference between revisions of "Repairs made to TAGH scintillator counters over the summer of 2019"
(→Scintillators) |
(→Scintillators) |
||
| Line 25: | Line 25: | ||
| [[File:5SC.JPG|thumb|All five scintiallators. Note the two broken ones.]] | | [[File:5SC.JPG|thumb|All five scintiallators. Note the two broken ones.]] | ||
| [[File:2brokenSC.JPG|thumb|Overhead view of the two broken scintillators]] | | [[File:2brokenSC.JPG|thumb|Overhead view of the two broken scintillators]] | ||
| + | | [[File:PolishedSC.JPG|thumb|The three usable, mostly polished scintillators]] | ||
|} | |} | ||
Revision as of 13:58, 26 June 2019
Contents
Overview
During the second week of June 2019, 5 counters were removed from the TAGH. These counters all had scintillators that were loosely connected to their respective light-guides and were believed to not be functioning properly. The initial 5 counters were the numbers 113, 116, 125, 144, and 161.
Initial State of the Counters
Two of the five counters had scintillators that were broken at the base, as is seen in the picture below. The other three counters had scintillators that were loose and no longer held by the epoxy to the light-guide. These damages are thought to be the result people bumping into them and not putting the protective caps over the scintillator part of the counter.
Scintillators
Scintillators 125, 144, and 161 were loose from their respective light-guides, while 113 and 116 had there bases broken off and still in the epoxy.
A white film, which can be seen in the first image below, was formed over the sides of the scintillators in contact with the light-guides. This film was polished off the scintillators using the same technique for polishing the light guides.
