[Hbi-svt] [Fwd: SVT Module Construction Process]

[Marc McMullen]

Hi Michael,

I was wondering if you had a chance to look at these questions yet. We 
met with Saptarshi today to try to get some firm numbers on the module 
support and cooling, and hopefully engineering can start on the final 
designs for these parts. I know that the answers to some of these affect 
decisions on the designs for them, which will have some bearings on the 
details of the electronics for me as well. We should still plan to meet 
next Thursday.

Thanks
Marc

-------- Original Message --------
Subject: 	SVT Module Construction Process
Date: 	Wed, 21 Jul 2010 11:50:11 -0400
From: 	Marc McMullen <mcmullen at jlab.org>
To: 	Michael Merkin <merkinm at silab.sinp.msu.ru>
CC: 	HBI-SVT <Hbi-svt at jlab.org>, HBI <hbi-internal at jlab.org>



Hi Michael,

Last week we met with 12GeV upgrade management and went over the 
progress of the project. By the end of the meeting we developed a list 
of issues which need to be addressed, some of which we are hoping you 
can help us out with the answers to. If you could review these perhaps 
we can go over some of them in our bi-weekly EVO meeting tomorrow with 
Latifa. Answers to these will help with the current progress and future 
reviews and meetings.

The questions are as follows:

 

   1. Is there any progress on evaluating the current MSU module
      assembly process to allow for the current HFCB design?
   2. Are there any previous experiments which use bolts/screws to
      fasten the electronics to the module?
   3. Are there any module construction tools which need to be purchased
      or designed.
   4. Using the proposed method of module construction (FR4 i-beams with
      rohacell supports), what will provide for electromagnetic
      shielding? Could you recommend any previous experiments using this
      method?
   5. If we do have to go with the carbon fiber/foam core design due to
      the reasons of electromagnetic shielding and also prevention of
      multiple scattering from the FR4 spacers, does MSU have the
      capability to construct the stave?
   6. What is the proposed module assembly process?
   7. What mechanical designs are expected of Jefferson Lab to provide
      for MSU?
   8. When are you expecting any mechanical designs from Jefferson Lab?
   9. Who will provide/order the module materials?
  10. Which entity is expected to provide designs and parts/materials
      for the module storage containers?
  11. Is there any assistance we could provide that will allow for a
      full chain test for the September review?

So far these are some of the questions we could use your help on, I'm 
sure there will be more in the future.

Thanks,
Marc

 




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