[Halld-tracking-hw] CDC straw tubes

Curtis A. Meyer cmeyer at ernest.phys.cmu.edu
Tue Jan 11 11:02:35 EST 2011


Hi Tim -

      We have installed and/or prepped 670 and have about 1100 more that 
we can use. At
outside, I think that we run out in about 12 weeks, and probably sooner 
than that.

    Curtis

On 1/11/11 10:24 AM, Tim Whitlatch wrote:
> Hi Curtis,
>
> I had spoken with Patrick Hester from Lamina this morning.
> He is having trouble with the supplier of the aluminized mylar in that 
> they will not guarantee the aluminum thickness to be 300A or thicker 
> (max 110 ohms over the straw length).
> Therefore he has no date to deliver planned as of yet. He is working 
> on this.
>
> He stated that there were some straws in the batch that had the lower 
> resistance.
> I asked him to have them checked and see how many can pass.
> If there is a significant number (100s) I will ask him to send those. 
> This can keep us moving when the existing stock is completed.
>
> Curtis, when do you anticipate using up all the straws you currently 
> have?
>
> Cheers,
>
>       Tim


-- 
Prof. Curtis A. Meyer		Department of Physics
Phone:	(412) 268-2745		Carnegie Mellon University
Fax:	(412) 681-0648		Pittsburgh PA 15213-3890
cmeyer at ernest.phys.cmu.edu	http://www.curtismeyer.com/




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