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[Yi Yang <yiyang AT ncku.edu.tw>]

Hi Zhenyu,

Sorry for the late reply. 

Please find our partial replies inline: 

For Yi and Hang-sheng:
1. What is the surface smoothness of the mechanical structure made by the injection-mold method from EASTON?

>> The tolerance is about 0.17 mm to 0.2 mm, but I think we have to measure it by ourself once we have the first batch. 

2. What type of screws are used for fixing the module in the holding frame, M3, M4 or?

>> M3.

3. Can we change the holding frame/box so that the box can be opened and the module be accessed from both sides?

>> We have some idea and we can discuss this in this week's FTS meeting. 

4. Update the CAD file with separated outer sensors? Check the dimensions of the inner and outer sensors to make sure they match with the sensor designs.

>> Will do. 

Cheers,

Yi

+++++++++++++++++++++++++++++++++++++++++++++++++++
Yi Yang, Associate 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, Sep 24, 2019 at 1:42 AM Ye, Zhenyu <yezhenyu AT uic.edu> wrote:

Dear all,

Last Thursday I had a meeting with Fermilab SiDet engineers and technicians. We went through the FST module design, and module assembly procedure. Below are some questions / action items.

For Yi and Hang-sheng:
1. What is the surface smoothness of the mechanical structure made by the injection-mold method from EASTON?
2. What type of screws are used for fixing the module in the holding frame, M3, M4 or?
3. Can we change the holding frame/box so that the box can be opened and the module be accessed from both sides?
4. Update the CAD file with separated outer sensors? Check the dimensions of the inner and outer sensors to make sure they match with the sensor designs.

For Jiangning and Gerard:
5. Are the two outer sensors electrically isolated on the hybrid?

For Zhenyu
7. What unit does the UIC machine shop work with, mm or inch?

Can you please provide the requested information by this Thursday?

Thanks and Best,
Zhenyu






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