Difference between revisions of "Visual inspection"
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(→Possible issued with lead glass module) |
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<gallery> | <gallery> | ||
+ | Image:glass_glass_prob.jpg | Fig. 1 Broken glass | ||
+ | </gallery> | ||
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+ | <gallery> | ||
+ | Image:glass_wrap_prob.jpg | Fig. 2 Wrapping issue: teared Aluminized mylar, fix without disassembling module | ||
Image:glass_glass_prob.jpg | Fig. 4 Broken glass | Image:glass_glass_prob.jpg | Fig. 4 Broken glass | ||
image:glass_color_prob.jpg | Fig. 1 Colored lead glass module, possible radiation damage issue. Can be seen without removing steel flange. | image:glass_color_prob.jpg | Fig. 1 Colored lead glass module, possible radiation damage issue. Can be seen without removing steel flange. | ||
− | Image:glass_color_prob1.jpg | Fig. 2 Colored lead glass | + | Image:glass_color_prob1.jpg | Fig. 2 Colored lead glass module |
− | + | ||
Image:glass_pmt_prob.jpg | Fig. 5 Damaged PMT | Image:glass_pmt_prob.jpg | Fig. 5 Damaged PMT | ||
</gallery> | </gallery> | ||
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== Possible issued with lead glass module == | == Possible issued with lead glass module == |
Revision as of 10:44, 18 October 2022
Possible issued with lead glass module
- Broken lead glass, see Fig. 1 (module taken from the FCAL prototype)
- some problems can be seen when looked on the lead glass block from the side opposite to the PMT
- lead glass module has to be disassembled
- Issues with wrapping
- small damages (holes) of the Aluminized mylar, See Fig. 2. Can be fixed using Al sticky tape, thickness < 20 um
- Problems with the Al layer in the wrapping foil:
- Al layer peeled off resulting in some transparent holes in the wrapping.