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[Zhenyu Ye <yezhenyu2003 AT gmail.com>]

Mike, thanks for the update. 

Below are the minutes of today’s meeting

Attendees: Elke, Han-Sheng, Krishan, Prithwish, Rahul, Te-Chuan, Xu, Zhenyu 

0. T-board and Inner signal cables
See Mike’s email for the current status/plan. A short summary, expect to get 
the test cables and v3.0 T-board by Jan 24, 2020. Also reminded everyone the 
plan for hybrid: Jianing ordered hybrids from two vendors and the delivery 
expected around Christmas time. Jianing will send the hybrids and extra two 
connectors to Yi. Yi will assemble 4 outer hybrids from the old vendor, and 4 
inner+4 outer hybrids from the 2nd vendor. These together with the 6 
assembled inner hybrids from the old vendor should give us enough hybrids for 
prototype module assembly. 

1. Cooling rack maintenance - Rahul
Rahul has scheduled a phone meeting next Monday with Jim Kelsey and Jason 
Bessuille to discuss the cooling rack maintenance work. Rahul will try to 
understand the scope of the work, parts should be ordered, and then decide on 
the dates that Jason and his tech should come to BNL to service the rack 
together with Rahul and Bill Struble.  

2. Integration - Rahul
John Scheblein is working 50% for STAR, which is dedicated to sTGC gas system 
design at the moment. STSG has opened a designer position, who will work on 
FST integration design when he/she starts. 
Also discussed installing 1-2 FST prototype modules into STAR in Run20. FST 
group will write down what the potential benefits are, discuss with Rahul 
about where exactly to put the modules (*), and Rahul will tell us how much 
efforts are needed in order to do so. These will be used as inputs to aid the 
discussion and decision on whether or not to actually do this. For *, Rahul 
will send the conceptual design of the structure for installing a few sTGC 
modules and Pre-shower in front of the calorimeter in 2020.

3. Mechanical structure - Yi
3rd version of mechanical structures were delivered by EASTON. The changes 
w.r.t. v2 includes 1) a new type of PEEK+30% CF material that flow better 
during injection and thus less bending than the old type material 2) remove 
the center part of the outer region. The data from one set of the structures 
indicates bending around 500 and 700 microns for inner and outer region 
structures, respectively. The former seems to be worse than the previous 
version and Yi will try to find out the explanation from EASTON. 
Moving forward, Yi is going to ask EASTON to increase the thickness of the 
structure from 1.5mm to 2mm, which EASTON expects to improve the bending 
issue. This will take 1.5-2 weeks to see the results. Yi will also discuss 
with AIDC next Monday is to add CF sheets to increase the stiffness and thus 
improve the surface flatness. Yi agreed that we will have a meeting to 
discuss his findings next Monday 3:30pm BNL time.
Han-Sheng is working on a new Thermal-Stress simulation with the latest 
design, and may report next week. 

4. Soft cooling tube - Yi
Yi has quotes for soft cooling tubes that are made of two different kinds of 
materials, both of which are recommended by the vendor to work with NOVEC. He 
will order them and look into how to set up a test stand at NCKU with these 
tubes. We will also check with Flemming to see where we stand in terms of 
irradiation at BNL with these tubes. 

5. Simulation - Te-Chuan, Krishan 
Te-Chuan is working on implementing the new FST geometry into AgML. He thinks 
he can finish in two weeks and will give a report next week.
After the meeting, Krishan contacted Daniel, and got instructions on how to 
install and run the new Tracking code. 


> On Dec 12, 2019, at 8:08 AM, Capotosto, Michael <capotosto AT bnl.gov> wrote:
> 
> All, 
>  
> Apologies, I will be late today and unable to make the meeting.
>  
> V3 T-Board status update: 
>  
> I have submitted a purchase order for the production of the V3 T-Boards, it 
> has been approved by Elke and John Hammond, it is now up to purchasing. It 
> is for a 6-day turn, full turnkey (They will order the parts kit, the PCBs, 
> and assemble them). The vendor is closed only for December 25th, so I 
> anticipate receiving the boards before the end of the year. I will install 
> the Nicomatic connectors when I receive the boards (Removed from the V2.1 
> T-Boards, as we have no spares). I will deliver these boards to our cable 
> vendor by January 6th, 2020.
>  
> I submitted a second purchase order for the new test stand cables to be 
> made using our custom cable, the vendor will put the D-sub on one end, do 
> point-to-point testing, and then solder the cable to the V3 T-Board. He 
> will deliver the finished product by January 24th, 2020.
>  
> Best,
>  
> Mike
>  
>  
>  
> From: Star-fst-l <star-fst-l-bounces AT lists.bnl.gov> On Behalf Of Zhenyu Ye
> Sent: Wednesday, December 11, 2019 10:45 AM
> To: Aschenauer, Elke <elke AT bnl.gov>
> Cc: star-fst-l AT lists.bnl.gov
> Subject: Re: [Star-fst-l] Weekly FST meeting - 12/12/2019 9:30am BNL time
>  
> Yes. Rahul, would you be able to connect during the meeting tomorrow 
> starting at 9:30am BNL local time? If so, do you have any preference to a 
> specific time to discuss these things?
> Best,
> Zhenyu
> 
> Sent from my iPhone
> 
> On Dec 11, 2019, at 9:26 AM, Aschenauer Elke-Caroline <elke AT bnl.gov> wrote:
> 
> I think it would be also good to hear about the integration and  
> the cooling system repair. I know Rahul had a phone call schedule with the 
> MIT guys to understand what the next steps are.
>  
> Cheers elke
>  
> On Dec 11, 2019, at 09:33, Ye, Zhenyu <yezhenyu AT uic.edu> wrote:
>  
> Dear all, 
> 
> We will have a weekly FST meeting this Thursday 9:30am BNL time. The 
> meeting agenda and bluejeans info can be found at 
> https://drupal.star.bnl.gov/STAR/blog/yezhenyu/forward-silicon-tracker-weekly-meeting
> 
> 1. T-board and inner signal cable - Jianing Dong, Mike Capotosto, Gerard 
> Visser 
> Update on the status of V3 T-board by Mike 
> 
> 2. Mechanical Structure - Yi Yang, Han-Sheng Li
> Updates by Yi/Han-Sheng on the status of mechanical structure fabrication 
> and assembly, cooling soft tube compatibility test, and transportation box 
> design 
> 
> 3. Simulation: Te-Chuan Huang/Flemming Videbaek, Krishan Gopal
> Updates from Te-Chuan/Flemming on FST geometry modeling 
> Krishan, do you get the tracking codes and instruction from Daniel?
> 
> If there is anything else to report/discuss, please let us know. 
> 
> Best
> Zhenyu
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