Star-fst-l mailing list

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

From Rahul:

We will not like to make the diameter 690mm not because just for support 
structure, there is air blowing through the cone and we will need to leave 
the room to not create over pressure. As originally agreed, you guys can make 
the diameter 670mm.

By looking at the drawings and configuration I think if you guys make your 
cables 8 feet, it will be more than enough.

- Rahul

> Dear Rahul, John
> 
> Just to reiterate our current outstanding questions
> 
> 1. Can we make the FST diameter 690mm
> 
> 2. What is the length of the FST inner signal cables, given the current 
> location of FST disks, and the patch panel boards on TPC endcap.
> 
> We are planning to start making prototype FST modular structures (aiming at 
> bringing them to BNL for f2f meeting on March 31), and decide on how to 
> proceed with cables for prototype tests. Your timely inputs will be highly 
> appreciated. 
> 
> Thanks,
> Zhenyu
> 
>> On Feb 12, 2019, at 9:38 PM, Yi Yang <yiyang AT ncku.edu.tw> wrote:
>> 
>> Dear Zhenyu and Rahul,
>> 
>> We looked into the mechanical design closely these days and would like to 
>> ask to increase the diameter of the disk from 670 mm to 690 mm for the 
>> cooling pipe and T-board. 
>> Please let us know if it is possible. Thanks a lot.
>> 
>> Cheers,
>> Yi
>> 
>> +++++++++++++++++++++++++++++++++++++++++++++++++++
>> Yi Yang, Assistant Professor 
>> Department of Physics 
>> National Cheng Kung University 
>> Tainan, 701 Taiwan 
>> E-Mail: yiyang AT ncku.edu.tw 
>> Tel: +886-6-2757575 ext.65237 
>> Fax: +886-6-2747995
>> Group Web: http://phys.ncku.edu.tw/~yiyang 
>> +++++++++++++++++++++++++++++++++++++++++++++++++++
>> 
>> 
>> On Tue, Feb 5, 2019 at 11:54 PM Ye, Zhenyu <yezhenyu AT uic.edu> wrote:
>> Rahul and I spoke on the phone this morning. My understanding is 670mm 
>> diameter at the current disk locations is constrained by the requirement 
>> to have some space for air flow to the inner part of the cone. If we’d 
>> like to increase the disk diameter, we may need to move the disks away 
>> from the center. For example, if we move the disks by ~4 inches to the 
>> left, we can increase the disk diameter by ~2 inches. (Rahul, please 
>> correct me if I am wrong). Yi, how much larger do you need the disk 
>> diameter to be?
>> 
>> P.S. Rahul, the latest drawings from Yi Yang and Han-Sheng can be found in 
>> the attachment. If you need anything else, please let us know.
>> 
>> 
>> 
>> Zhenyu
>> 
>> > On Jan 12, 2019, at 8:08 AM, Yi Yang <yiyang AT ncku.edu.tw> wrote:
>> > 
>> > Dear Rahul and John,
>> > 
>> > We are making the detailed design of the forward silicon disk and 
>> > currently we are using 335 mm as the outer radius as the silicon disk. 
>> > We are wondering if there is any room to extend the outer radius? 
>> > So we would like to know the "maximum possible" dimension of the "Si 
>> > DISKS SUPPORT" (dash-circled) in the attachment. 
>> > Could you please let us know what is the limit in your design now? 
>> > Thanks a lot.
>> > 
>> > Cheers,
>> > Yi
>> > 
>> > +++++++++++++++++++++++++++++++++++++++++++++++++++
>> > Yi Yang, Assistant Professor 
>> > Department of Physics 
>> > National Cheng Kung University 
>> > Tainan, 701 Taiwan 
>> > E-Mail: yiyang AT ncku.edu.tw 
>> > Tel: +886-6-2757575 ext.65237 
>> > Fax: +886-6-2747995
>> > Group Web: http://phys.ncku.edu.tw/~yiyang 
>> > +++++++++++++++++++++++++++++++++++++++++++++++++++
>> > 
>> > <Question.pdf>
>> 
>> _______________________________________________
>> Star-fst-l mailing list
>> Star-fst-l AT lists.bnl.gov
>> https://lists.bnl.gov/mailman/listinfo/star-fst-l