Re: Ring size meeting

[Elke-Caroline Aschenauer <elke@jlab.org>]

On Wed, 31 Oct 2007, Daniel S. Carman wrote:

Dear Dan,

I have a small question to this point. After our discussion today I have
learned a bit more on the issue and actually would like to understand why
we would like to go back to 1200.

It seems like Roger and Kim have designed to 1178 mm, Chuck and Tim have
this number in their 3d model. So what is the reason to go back to
1200mm. It seems we don't need the extra space for the design of the
electronic boards as things fit on the one with 1178 mm.

Actually one disadvantage is we add 22mm more material which seems not to
be needed. But I'm sure my arguments are to simple.

cheers elke


> Date: Wed, 31 Oct 2007 16:57:13 -0400 (EDT)
> From: Daniel S. Carman <carman@jlab.org>
> To: FDC Group <halld-tracking-hw@jlab.org>
> Subject: Ring size meeting
>
>
>
> Folks,
>
> We will have a meeting on Monday morning at 8:30 a.m. (November 5)
> to finalize the decision on the FDC annulus O.D. (the 1178 vs 1200
> question).  I have gotten input separately from Tim, Chuck, Brian,
> and Kim.  However, as this is an important number that we want to
> settle once and for all (and especially before Brian starts construction
> of the wire frames on Monday), I would like to have a brief discussion
> so that we can make a decision.  I am presently working on booking
> a room, and will send this information around shortly.
>
>
> 				Regards,
>
> 					Daniel
>
>
> **********************************************************************
> *                                                                    *
> * Dr. Daniel S. Carman                   e-mail : carman@jlab.org    *
> * Staff Scientist                        office : (757)-269-5586     *
> * Jefferson Laboratory                   web: www.jlab.org/~carman   *
> *                                                                    *
> **********************************************************************
>
>
>
>

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