Difference between revisions of "March 12, 2023, FCAL Insert Installation Meeting"
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** Subtract 16.13mm from bottom | ** Subtract 16.13mm from bottom | ||
* Cable update [[Media:FCAL2_lv,board.pdf]] | * Cable update [[Media:FCAL2_lv,board.pdf]] | ||
| + | |||
| + | == Minutes == | ||
| + | * Went over the minutes from the last meeting | ||
| + | * Significant discussion on shims - | ||
| + | ** Malte has a large number of SS straps from the original modules and will serve as the shims to make up for the difference in module orientation of the lead glass blocks | ||
| + | ** Matt Shepherd brought addition SS strap and shim material | ||
| + | ** The original stack up used shims at each step so we should have plenty to reuse if needed | ||
| + | ** Discussed shimming the glass/crystal interface to get good and straight, maybe a sheet all around to give a flat surface for the crystals? Also a conductive rubber pad? | ||
| + | *** Sasha said the one on the ComCal is coming apart so we would have to find something more robust. | ||
Revision as of 16:55, 12 April 2023
Meeting Time and Place
Wednesday March 12, 2023 9am At Jefferson Lab, Hall D Counting House and on Zoom
Agenda
- Minutes from last meeting https://halldweb.jlab.org/wiki/index.php/March_5,_2023,_FCAL_Insert_Installation_Meeting
- Go through updated Procedure
- Discuss glass and crystal module install, shimming etc... [1] - Sasha/Malte etc...
- As found measurements of existing lead glass stack up Media:FCAL_module_stack.pdf
- The detector was measured from the outside of the aluminum plates that hold in the modules
- Subtract 18.16mm from beam left to take out plate and shim thickness
- Subtract 19.69 mm from beam right
- Subtract 20.19mm from top
- Subtract 16.13mm from bottom
- Cable update Media:FCAL2_lv,board.pdf
Minutes
- Went over the minutes from the last meeting
- Significant discussion on shims -
- Malte has a large number of SS straps from the original modules and will serve as the shims to make up for the difference in module orientation of the lead glass blocks
- Matt Shepherd brought addition SS strap and shim material
- The original stack up used shims at each step so we should have plenty to reuse if needed
- Discussed shimming the glass/crystal interface to get good and straight, maybe a sheet all around to give a flat surface for the crystals? Also a conductive rubber pad?
- Sasha said the one on the ComCal is coming apart so we would have to find something more robust.
