Difference between revisions of "Visual inspection"
From GlueXWiki
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<gallery> | <gallery> | ||
| − | Image:glass_wrap_prob.jpg | Fig. 2 Wrapping issue: teared Aluminized mylar, fix without disassembling module | + | Image:glass_wrap_prob.jpg | Fig. 2 Wrapping issue: teared Aluminized mylar, fix without disassembling module |
| − | Image: | + | Image:glass_wrap_prob1.jpg | Fig. 3 Wrapping issue: teared Aluminized mylar, fix without disassembling module |
| − | + | Image:glass_wrap_prob2.jpg | Fig. 4 Wrapping issue: teared Aluminized mylar, fix without disassembling module | |
| − | Image: | + | |
| − | + | ||
</gallery> | </gallery> | ||
| + | <gallery> | ||
| + | Image:glass_pmt_prob.jpg | Fig. 5 Damaged PMT | ||
| + | Image:glass_color_prob.jpg | Fig. 6 Colored lead glass module, possible radiation damage issue. Can be seen without removing steel flange. | ||
| + | Image:glass_color_prob1.jpg | Fig. 7 Colored lead glass module | ||
| + | </gallery> | ||
== Possible issued with lead glass module == | == Possible issued with lead glass module == | ||
Revision as of 10:47, 18 October 2022
Fig. 1 Broken glass
Fig. 2 Wrapping issue: teared Aluminized mylar, fix without disassembling module
Fig. 3 Wrapping issue: teared Aluminized mylar, fix without disassembling module
Fig. 4 Wrapping issue: teared Aluminized mylar, fix without disassembling module
Fig. 5 Damaged PMT
Fig. 6 Colored lead glass module, possible radiation damage issue. Can be seen without removing steel flange.
Fig. 7 Colored lead glass module
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.
