Star-fst-l mailing list

["Ye, Zhenyu" <yezhenyu AT uic.edu>]

Minutes:

Integration:
1) Design and fabricate light-tight box for the DAQ integration test at BNL - 
Rahul/Flemming
-> Found a dark Box made of thick plastics. Will drill holes for cables and 
decide how to fix the FST storage box in Nov.
2) Design the cooling lines, and cable trays between disks and cooling 
manifold - Felix/Rahul
-> Expect a presentation next week.
3) Cooling rack refurbishment and test - Rahul
-> Flew NOVEC last Monday, but the system started tripping on Tuesday but no 
interlock dropped. Will investigate. 

Mechanical structure:
1) Document the proposed changes to the mechanical structure - Yi
-> Will do this week
2) Test and examine the new assembly procedure - Yi
-> New jigs needed some changes. Done last Friday. May have the results this 
week

Hybrid/T-board/Inner Signal Cable/Patch Panel Board/Back of Crate Board:
2) Check how T-board would mount onto MS, and fix cables - 
Jianing/Maowu/Mike/Gerard 
-> Rahul/Felix will give a presentation on cable fixing next week. Will 
decide whether to keep or remove the four cable-tie holes on the T-board
-> Maowu will follow up with Yi to see how to change the holes on the corners 
of the T-board to slots
 
Production Module assembly:
1) Get updated quote from Hamamatsu - Zhenyu
-> Done. Hamamatsu final quote and spec for production sensors. 
-> Flemming: request has been submitted to BNL procurement.
-> Elke: Don't see why the order can not be placed this Month. Need constant 
follow-up

2) Discuss with Fermilab about production module assembly schedule - Zhenyu/Xu
-> Zhenyu will provide the contact person info to Elke so that she can ask 
for and understand the spendings on prototypes, and estimates for the 
production

Prototype Module test:
1) Gavin: compared different hit reconstruction threshold and time bin 
requirements using data taking with FST03 (both inner and outer). Found 
consistent results as FST01 (outer sensor only)

Software:
1) Develop FST slow simulator to study tracking performance - 
Gavin/Shenghui/Daniel
-> Shenghui: no statistically significant difference in pT resolution between 
fast and slow simulators. Will further check. 
2) Prepare FST fast simulator code for Review - Shenghui
-> Done. 

**** Action items ****
Integration:
1) Design the cooling lines, and cable trays between disks and cooling 
manifold - Felix/Rahul
2) Cooling rack refurbishment and test - Rahul
3) Installation procedure and tolerance requirements - Rahul/Yi/Zhenyu
4) Survey procedure and requirements - Rahul
5) Prepare documents for prelim safety review with C-AD - all

Mechanical structure:
1) Document the proposed changes to the mechanical structure - Yi
2) Test and examine the new assembly procedure - Yi
3) Use thermal camera to check air bubbles for hybrid mounting - Yi
4) Add flux-cleaning step in the document - Yi
5) Document the mechanical structure and hybrid assembly QC criteria - Yi

Hybrid/T-board/Inner Signal Cable/Patch Panel Board/Back of Crate Board:
1) Update the T-board design to avoid the conflict with Mechanical structure 
- Jianing/Maowu/Gerard
2) Check how T-board would mount onto MS, and fix cables - 
Jianing/Maowu/Mike/Gerard 
3) Look into splitting the inner and outer sensor HV bias - 
Mike/Gerard/Christian 
4) Send the problematic prototype cable-T-board assembly to Mike for 
investigation - Zhenyu/Mike
5) Develop the QC procedure for Inner cable and T-board assembly - Mike/Maowu

Production Module assembly:
1) Discuss with Fermilab about production module assembly schedule - Zhenyu/Xu
2) Design and fabricate module storage boxes for production at UIC - Xu/Andres
3) Duplicate the module assembly tooling at UIC - Xu/Zhenyu

Prototype Module test:
1) Look into the overall large CMN noise, and the abnormal noise of few 
channels first appear in the readout - Gerard/Xu
2) Check the FST noise performance at high readout rate - Xu
3) Use the laser test stand to characterize prototype module performance - 
Andres/Zhenyu
4) Test stand setup at BNL - Prithwish/Hu

Software:
1) Prepare FST offline software - Shenghui/Xu
2) Detector slow control - Xu
3) Cooling system slow control - Prithwish/Hu

> On Aug 14, 2020, at 9:42 PM, Ye, Zhenyu <yezhenyu AT uic.edu> wrote:
> 
> Dear all, 
> 
> We will have the Weekly FST meeting on Monday starting at 9am EST (BNL 
> local time). 
> 
> Bluejeans Meeting URL https://bluejeans.com/101020434
> Meeting ID: 101 020 434
> 
> https://drupal.star.bnl.gov/STAR/event/2020/08/17/star-forward-silicon-tracker-meeting
> 
> 0. follow-ups on review and action items * 
> 1. Integration                                                              
>         by Rahul Sharma, Felix Archampong
> 2. Hybrid, T-board                                                          
> by Maowu Nie, Gerard Visser 
> 3. Patch panel boards and ABC boards                       by Mike 
> Capotosto, Gerard Visser 
> 4. Simulation Studies                                                    by 
> Shenghui Zhang
> 5. Prototype Module Test                                              by Xu 
> Sun, Gavin Wilks
> 6. Mechanical structure                                                 by 
> Yi Yang
> 
> * 
> https://drupal.star.bnl.gov/STAR/event/2020/08/17/star-forward-silicon-tracker-meeting/follow-review-and-action-items
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