Star-fst-l mailing list

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

Dear Gerard,

Thanks for looking into this. I ordered a few and will test it next week 
after they arrive.

Zhenyu

> On Aug 18, 2020, at 8:56 PM, Gerard Visser <gvisser AT indiana.edu> wrote:
> 
> Dear Yi and Zhenyu,
>       Could one or both of you please order some Littelfuse # 01220087Z 
> (Mouser has stock, 84 cents each, 
> https://urldefense.com/v3/__https://www.mouser.com/ProductDetail/Littelfuse/01220087Z?qs=*2Fha2pyFaduglErFCB38n3htdBYhndPrY4k2JWosNk8ORS1jEraEYXw*3D*3D__;JSUl!!P4SdNyxKAPE!V3xdOkTruG4VzRQirTwQLvHJK3hFVDssHTjK_gul0YsV3ws-wDDmrQl-94G_9KuV283L_mo$
>   ) to evaluate for use in connecting the short ground wire from T-board to 
> the cooling tube on each module?
>       Nominally it is meant to give a nice solid electrical connection to a 
> 1/4 inch fuse terminal, it shoud similarly snap nice and solidly onto the 
> cooling tube. Hopefully there is a short straight place where it can be put.
>       Sincerely,
> 
>               Gerard
> 
> 
> On 8/17/2020 10:40 AM, Ye, Zhenyu wrote:
>> 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
>>> _______________________________________________
>>> Star-fst-l mailing list
>>> Star-fst-l AT lists.bnl.gov
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