Difference between revisions of "JEF meeting, November 15, 2019"
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(Created page with "Meeting time and location= 10:00 am EST (JLab time) F226 =Connection instructions= <div class="toccolours mw-collapsible mw-collapsed"> We are using [https://cc.jlab.org/blu...") |
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*SICCAS crystals | *SICCAS crystals | ||
*Preparations for upcoming run | *Preparations for upcoming run | ||
+ | |||
+ | =Minutes= | ||
+ | Attendees: | ||
+ | |||
+ | * Rory Miskimen agreed to be a convener for the "Parity violation and fundamental symmetry tests" for SNOWMASS | ||
+ | ** We still need to identify a theorist for this sub-group. | ||
+ | * Liping has contacted Susan Shadmand regarding being convener for the "Quark Flavor Physics" subgroup; Sasha and S.T. talked to Stepan Stepanyan as a possible alternate. | ||
+ | * SICCAS crystals: the company is still on target for late November delivery | ||
+ | ** Rolf is still willing to support buying more crystals up to a total of 1600 (including the 500 already on order). | ||
+ | * We are still working on the contract between Wuhan and JLab -- Eugene and Rolf are on board, still working through JLab bureaucracy. | ||
+ | * We received all 64 CRYTUR crystals -- apart for some minor scratches they all look good. | ||
+ | * We identified space to assemble the modules in the TEDF; this space should be available in December. | ||
+ | * 500 PMTS are on order | ||
+ | * Final module design still needs to be set: | ||
+ | ** Working on stress tests for straps. | ||
+ | ** Attachment of light guides to crystals: plan is to use RTV (glues to light guide material but not as well to the crystal?) | ||
+ | *** Will make these "cookies" ourselves with 2-component material | ||
+ | *** Light guide diameter is slightly larger than PMT active diameter (18 mm vs 16.5-17 mm) | ||
+ | ** ESR reflective material is a little thicker (65 microns) than previously available -- probably still ok. | ||
+ | ** Perhaps build 50 modules? Need to think of mechanism for moving modules between various setups (light transmittance measurements are in Carl Zorn's lab) | ||
+ | * Beam test setup is awaiting platform (components ordered) | ||
+ | ** 12 module assembly awaiting plate | ||
+ | * V. Popov has provided design for new bases, plan to test using COMCAL | ||
+ | ** Plan to do rate scan, measure anode current with B-field on | ||
+ | ** Plan to use COMCAL as TAC, check linearity, radiation damage? | ||
+ | * Optimize beam hole (current 2x2)? |
Revision as of 17:37, 15 November 2019
Meeting time and location= 10:00 am EST (JLab time) F226
Connection instructions
We are using BlueJeans Video/Audio conferencing. Our meeting ID number is 992533564. Click "Expand" for more details.
- Make sure you have created a BlueJeans account via your JLab CUE account using this link:
- http://jlab.bluejeans.com (You should only need to do this once)
- If connecting via Web Browser: click this link (no passcode is needed):
- If connecting via Phone: Dial one of the following numbers and then enter the meeting ID above and hit "#" or "##"
- Dial: 1 888 240 2560 (US or Canada only)
- or, List of International Numbers
- If connecting via Polycom unit:
- Dial 199.48.152.152 or bjn.vc
- Enter meeting ID above
Agenda
- SNOWMASS update
- CRYTUR crystals
- SICCAS crystals
- Preparations for upcoming run
Minutes
Attendees:
- Rory Miskimen agreed to be a convener for the "Parity violation and fundamental symmetry tests" for SNOWMASS
- We still need to identify a theorist for this sub-group.
- Liping has contacted Susan Shadmand regarding being convener for the "Quark Flavor Physics" subgroup; Sasha and S.T. talked to Stepan Stepanyan as a possible alternate.
- SICCAS crystals: the company is still on target for late November delivery
- Rolf is still willing to support buying more crystals up to a total of 1600 (including the 500 already on order).
- We are still working on the contract between Wuhan and JLab -- Eugene and Rolf are on board, still working through JLab bureaucracy.
- We received all 64 CRYTUR crystals -- apart for some minor scratches they all look good.
- We identified space to assemble the modules in the TEDF; this space should be available in December.
- 500 PMTS are on order
- Final module design still needs to be set:
- Working on stress tests for straps.
- Attachment of light guides to crystals: plan is to use RTV (glues to light guide material but not as well to the crystal?)
- Will make these "cookies" ourselves with 2-component material
- Light guide diameter is slightly larger than PMT active diameter (18 mm vs 16.5-17 mm)
- ESR reflective material is a little thicker (65 microns) than previously available -- probably still ok.
- Perhaps build 50 modules? Need to think of mechanism for moving modules between various setups (light transmittance measurements are in Carl Zorn's lab)
- Beam test setup is awaiting platform (components ordered)
- 12 module assembly awaiting plate
- V. Popov has provided design for new bases, plan to test using COMCAL
- Plan to do rate scan, measure anode current with B-field on
- Plan to use COMCAL as TAC, check linearity, radiation damage?
- Optimize beam hole (current 2x2)?