Star-fst-l mailing list

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

Minutes

************************************************************ 
Action items
************************************************************ 
1) Document the procedure and requirements of gluing hybrids onto MS for Plan 
A at NTU - Yi
-> RA visited NTU last Friday and stay for about 5 weeks to establish the 
procedure and work on prototype assembly. Expect to be ready for operations 
in 3 weeks (end of first week or middle of the second week in May)
-> Fixture and jigs will be finished this week, Han-sehng will take them to 
NTU, will provide detailed procedure document in 2 weeks

2) Document the procedure and requirements of gluing hybrids onto MS for Plan 
B by AIDC. This is needed before new hybrid production - Yi
-> Had a discussion with AIDC 1.5 weeks ago, will provide the drawings for 
jigs/fixtures, and document the procedure  

3) Document on how/where the company would measure the surface flatness and 
being parallel between inner-outer sectors, before and after glueing hybrids 
and inner-outer sectors together - Yi
-> will provide a document to the company on measurement requirement. Will 
report to the group with the details and quotes 

4) Find out how the company would fix the hybrid and measure its flatness and 
thickness - Maowu
-> Sent an inner hybrid to company, and requested for details about how they 
would fix the hybrid and measure thickness and flatness  

5) UIC send a T-board and cable to NCKU to check if there is any conflict 
with the MS - Zhenyu 
-> Will do once the university is reopen 

6) Studying the tracking performance by varying the Z-locations of FST disks, 
and number of r/phi segments - Krishan/Daniel
-> changing FST disk Z-location manually is fine, but problems when using xml 
file for track resconstruction. Looking into it 

************************************************************ 
Integration - Rahul
************************************************************ 
New designer Felix started since last week, resolved a few problems 
(training, computer). Right now waiting for ITD to give him access to STSG 
directory. After that, Felix will take over
-> Action item: adding Felix to FST mailing list - Rahul/Zhenyu

************************************************************ 
Mechanical structure - Yi
************************************************************ 
EASTON: new mold will be finished on May 6, and will make 10 or 20 (don’t 
remember the exact number) sets of new structures 
Ordered 10 pieces of connectors. Will take about 4 weeks to deliver
Finish soft tube testing, will report later. 
Radiation tolerance of soft tube: instead of BNL radiative source, may try to 
put the soft tubes in STAR for tolerance test. Flemming will ask Robert about 
TLDs. Yi will check if there is such facility at Taiwan

************************************************************ 
Prototype module assembly and test - Xu
************************************************************ 
Looking into clustering algorithm, see if can improve the matching efficiency

************************************************************ 
Simulation - Shenghui 
************************************************************ 
Started looking into the Te-Chuan code/document 

************************************************************ 
AOB
************************************************************ 
Yi: what is the status of the cooling system ?
Rahul: ordered some sealing compound, planned to rebuild the system but then 
the lab closed

> On Apr 24, 2020, at 7:08 PM, Ye, Zhenyu <yezhenyu AT uic.edu> wrote:
> 
> ************************************************************ 
> Mechanical structures - Yi
> ************************************************************ 
> -> expect to deliver two MS to UIC in the 1st week of May 
> 
> Should be 1st week of June
> 
>> On Apr 24, 2020, at 7:05 PM, Ye, Zhenyu <yezhenyu AT uic.edu> wrote:
>> 
>> Attendees: Daniel, Han-Sheng, Jianing, John, Krishan, Maowu, Mike, Rahul, 
>> Te-Chuan, Xu, Yi, Yu, Zhenyu
>> 
>> ************************************************************ 
>> Follow-up on action items from previous work
>> ************************************************************ 
>> 1) Provide a detailed document of the procedure and requirements of gluing 
>> hybrids onto MS - Yi/Han-Sheng 
>> -> can only write down the concept at the moment, can not write down the 
>> step-by-step procedure w/o practicing 
>> 
>> 2) SDU measure hybrid flatness and dimensions - Jianing/Maowu
>> -> See presentation today
>> 
>> 3) New hybrid design for mounting hybrid Plan B - Jianing/Maowu/Yi
>> -> See presentation today 
>> 
>> 4) Send Rahul the weights of the disks - Yi
>> -> Will send Rahul and John densities of the materials so that they can 
>> put in the model (done)
>> 
>> 5) Order more connectors for hybrids - Yi
>> -> have sent the request to sales of agenda for ordering 20 connectors. 
>> Will follow up tomorrow 
>> 
>> 6) UIC send a T-board and cable to NCKU to check if there is any conflict 
>> with the MS - Zhenyu 
>> -> will do when campus is reopen 
>> 
>> 7) Studying the tracking performance by varying the Z-locations of FST 
>> disks, and number of r/phi segments - Krishan/Daniel
>> -> Daniel will give a presentation tomorrow on Z-locations tomorrow
>> -> Krishan is studying charge-identification and momentum resolution for 
>> varying 20 um and 1mm PV resolution, 
>> 
>> ************************************************************ 
>> Integration - Rahul 
>> ************************************************************ 
>> -> no major update, but will update the model after studies from Daniel on 
>> Z-locations
>> -> new designer started working today
>> 
>> ************************************************************ 
>> Mechanical structures - Yi
>> ************************************************************ 
>> -> expect to deliver two MS to UIC in the 1st week of May 
>> -> new assistant will start working at NTU this week for 1-2 weeks, will 
>> get familiar with Labview program to control the machine, study hybrid 
>> injection pattern with plastic films
>> -> has a contact in place with a company to measure the surface flatness 
>> and being parallel between inner-outer sectors, before and after glueing 
>> hybrids and inner-outer together. The company is design jig for the 
>> measurements. They will use optical gauge machine, but also mechanical 
>> gauge machine.The number of measurement points are under discussion now.  
>> Will provide document and share the info with the group
>> 
>> ************************************************************ 
>> Hybrid 
>> ************************************************************ 
>> -> Will contact the company to find out how they will fix the hybrid and 
>> measure its flatness and thickness. May send some hybrids to the company 
>> so that they can give such info. 
>> -> The company will also measure the relative positions of APV pads w.r.t. 
>> reference vias 
>> 
>> -> Modified hybrid design by adding extra structures with holes for Plan B 
>> of gluing hybrids onto MS
>> -> After approval by the group will take 4 weeks for production 
>> -> need to hear Plan B from Yi before moving forward
>> 
>> 
>> ************************************************************ 
>> Action items
>> ************************************************************ 
>> 1) Document the procedure and requirements of gluing hybrids onto MS for 
>> Plan A at NTU - Yi/Han-Sheng 
>> 2) Document the procedure and requirements of gluing hybrids onto MS for 
>> Plan B by AIDC. This is needed before new hybrid production - Yi/Han-Sheng 
>> 3) Document on how/where the company would measure the surface flatness 
>> and being parallel between inner-outer sectors, before and after glueing 
>> hybrids and inner-outer sectors together - Yi/Han-Sheng
>> 4) Find out how the company would fix the hybrid and measure its flatness 
>> and thickness - Jianing/Maowu
>> 5) UIC send a T-board and cable to NCKU to check if there is any conflict 
>> with the MS - Zhenyu 
>> 6) Studying the tracking performance by varying the Z-locations of FST 
>> disks, and number of r/phi segments - Krishan/Daniel
>> 
>>> On Apr 18, 2020, at 12:26 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/2020/04/20/fst-group-meeting
>>> 
>>> Tentative meeting agenda:
>>> 
>>> 0. follow-ups on the action items from last week (see *** below)
>>> 1. Integration                                                            
>>>          by Rahul Sharma, John Scheblein 
>>> 2. Mechanical structure                                                  
>>> by Yi Yang, Han-Sheng Li 
>>> 3. Prototype Module Assembly and Test                        by Xu Sun
>>> 4. Tracking Studies                                                       
>>>   by Krishan Gopal, Daniel Brandenburg 
>>> 
>>> *** Action items from previous weeks ***
>>> 1) Provide a detailed document of the procedure and requirements of 
>>> gluing hybrids onto MS - Yi/Han-Sheng 
>>> 2) SDU measure hybrid flatness and dimensions - Jianing/Maowu
>>> 3) New hybrid design for mounting hybrids - Yi/Jianing/Yi
>>> 4) Send Rahul the weights of the disks - Yi
>>> 5) Order more connectors for hybrids - Yi
>>> 6) UIC send a T-board and cable to NCKU to check if there is any conflict 
>>> with the MS - Zhenyu 
>>> 7) Studying the tracking performance by varying the Z-locations of FST 
>>> disks, and number of r/phi segments - Krishan/Daniel
>>> 
>>> Best,
>>> Zhenyu
>>> _______________________________________________
>>> Star-fst-l mailing list
>>> Star-fst-l AT lists.bnl.gov
>>> https://lists.bnl.gov/mailman/listinfo/star-fst-l
>> 
>