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Re: Spreadsheet comments
On Thu, 5 Apr 2007, Curtis A. Meyer wrote:
Dear Curtis,
all the Hv is costed somewhere else for the whole detector, so you have
not to worry about this. For the HV and signal cables I ussed already the
costs from Joe, which are the same ones for the FDC so one unique price.
I check you other emarks, what I need most is manpower numbers and
durations.
Thanks elke
> Date: Thu, 5 Apr 2007 06:59:11 -0400
> From: Curtis A. Meyer <curtis.meyer@cmu.edu>
> Reply-To: cmeyer@cmu.edu
> To: Elke-Caroline Aschenauer <elke@jlab.org>
> Cc: Tim Whitlatch <whitey@jlab.org>, halld-tracking-hw@jlab.org,
> Elton Smith <elton@jlab.org>
> Subject: Spreadsheet comments
>
> Hi Elke -
>
> Here are my "quick" comments. I need a bit longer to digest
> it all, but this is the obvious stuff. Perhaps Tim could comment
> on some of these as well?
>
> I would still be a lot happier with 8000 rather than 7000 of
> the feedthrough assemblies (line 29) and 10000 crimp pins
> (line 30). Just from experience with CLAS, you really have to
> be careful in selecting these.
>
> Row 41 can be removed, it is really row 29.
>
> We need a line for the Highvoltage distribution boards (my note)
> 165 boards at $35 per board.
>
> There are 140 signal cables and nominally some fraction of 140
> high voltage cables. I am not sure if a "standard cost" has been applied.
>
> There are 140 preamp cards (plus spares) - again is the number a
> standard cost?
>
> There needs to be a high voltage mainframe, but that may be some
> place else.
>
> Line 34 (procure endplates). I suspect that this is only 40000. I am
> leaning towards a plate that wont need a tooling plate to make. However,
> we are exploring some diferent materials and I would prefer to have a
> 10k placeholder for the purchase of the "raw" down stream plate.
>
> Some of the calibration system is going to be measuring wire locations,
> but I guess that we should leave this alone at the moment.
>
> Cheers - Curtis
> --
> Professor Curtis A. Meyer Department of Physics
> Head of Graduate Admissions Carnegie Mellon University
> curtis.meyer@cmu.edu Pittsburgh, PA 15213
>
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