Star-fst-l mailing list

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

Minutes

Inner signal cables/T-board - Mike
1. received 8 T-boards from SDU. Will have the cables assembled with the 
boards next week.

Mechanical structure - Yi
1. burst pressure measured for two soft tube candidates before and after 
irradiation. Both would meet our requirement . Will summarize the results and 
send to CAD safety committee to address their remaining comment
2. cooling tube hose: the hose that Yi used for cooling tube in the module is 
based on a connector that was recommended by a company to make fast/easy 
connections between tubes. Rahul will take a look at it and make 
recommendations. Yi will also send a few tubes (with hoses welded to the end) 
to Rahul. 
3. Mechanical structure and hybrids assembly going smoothly. Sent 5 to UIC (1 
received, 4 on the way) for initial evaluation, with two of them ranked B or 
C (good for production). Changed the flatness measurement positions on the MS 
from the new definition to the old one (used for prototype) for these modules 
to meet the requirement. 
-> Yi will provide measurement results of the new definition. 

Production module assembly - Zhenyu
1. storage boxes: two received on 12/1 and verified by Fermilab technicians 
on 12/3. Requested company to move the position of the module inside the box 
by 10mm to give room for cooling tubes and allow for tolerance of cooling 
tube bending. Expect to receive two modified boxes this week. After that, 12 
boxes per week
2. assembly tooling: one used for prototype module assembly has been modified 
to accommodate the changes we made to the mechanical structure. It was 
verified on 12/3 that the tooling fits with the new mechanical structure 
(FST009) sent by Yi. Two new sets of tooling are being fabricated at UIC 
machine shop, with delay due to reduced manpower and temporary closing of the 
shop due to one positive COVID19 case. 
3. module assembly: two step procedure - readout chips, sensors. Ready to 
start mounting chips from a technical point of view (waiting for BNL to 
process the contract extension with Fermilab). Even with one tooling we have 
in hand, we should be able to finish one module per day, so that we can 
finish all 48 by the end of February when sensors arrive. Assuming the new 
sets of tooling will be available at the time when we start mounting sensors, 
we should be able to finish one module per day for sensor mounting as well. 

Integration test - Xu 
1. DAQ integration test completed. Slow Control "50%" done. Online monitoring 
on the way. 
2. Cooling integration test planned for this week, pending on getting a 
thermal camera to measure the temperature. The flow rate is set to 9.2 l/m as 
IST with 12 loops, and will reduce to 50% because only 6 loops are currently 
connected, and vary the flow between 50%-25% to see how it affects the 
temperature of the module. 
3. Will contact relevant experts to check the noise at high readout rate with 
random triggers - Gerard/Xu 

Recommendations from Review
Postpone the discussion to next meeting

> On Dec 5, 2020, at 3:59 PM, Ye, Zhenyu <yezhenyu AT uic.edu> wrote:
> 
> Dear all, 
> 
> We will have the Weekly FST meeting on Monday starting at 8:30am EST (BNL 
> local time). 
> 
> https://urldefense.com/v3/__https://nam04.safelinks.protection.outlook.com/?url=https*3A*2F*2Fdrupal.star.bnl.gov*2FSTAR*2Fevent*2F2020*2F12*2F07*2Fstar-forward-silicon-tracker-meeting&amp;data=04*7C01*7Cyezhenyu*40uic.edu*7Cc0ef9b09eb884905447108d899691e6e*7Ce202cd477a564baa99e3e3b71a7c77dd*7C0*7C0*7C637428024057191016*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C1000&amp;sdata=yeAwtnDV3UaPFuqVKbfEf7lI2qzA*2FDfot2JSp5pOBJo*3D&amp;reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSUlJSU!!P4SdNyxKAPE!QIKX-zvKg4X_h2xT2EZUmP1a-k29TTHLvqe8iznOzAsPT3dMWNx_pmuz-sD3P4IbOdtn2s0$
>  
> 
> 0. follow-ups on review and action items * 
> 1. Integration                                                              
>         by Rahul Sharma, Felix Archampong
> 2. Hybrid and T-board                                                       
> by Maowu Nie, Mike Capotosto
> 3. Mechanical structure                                                 by 
> Yi Yang
> 4. Production module assembly                                    by Zhenyu 
> Ye
> 5. Integration test                                                         
>  by Xu Sun, Prithwish Tribedy, Yu Hu
> 
> * 
> https://urldefense.com/v3/__https://nam04.safelinks.protection.outlook.com/?url=https*3A*2F*2Fdrupal.star.bnl.gov*2FSTAR*2Fevent*2F2020*2F12*2F07*2Fstar-forward-silicon-tracker-meeting*2Ffollow-action-items&amp;data=04*7C01*7Cyezhenyu*40uic.edu*7Cc0ef9b09eb884905447108d899691e6e*7Ce202cd477a564baa99e3e3b71a7c77dd*7C0*7C0*7C637428024057191016*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C1000&amp;sdata=5*2BNygkC1SUTJXQpkmpSXqW*2B2223Y6uDj9h9b*2FKMfAeE*3D&amp;reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSUlJSUlJSU!!P4SdNyxKAPE!QIKX-zvKg4X_h2xT2EZUmP1a-k29TTHLvqe8iznOzAsPT3dMWNx_pmuz-sD3P4IbmJWarig$
>  
> 
> Zhenyu
> 
> ********** ZOOM Meeting ********** ********** 
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