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Re: Kapton aluminized
Hi Eugene -
they are 1 micron thick on the kapton - Curtis
On Fri March 6 2009, you wrote:
> Hi Curtis,
>
> I heard (long ago) from CERN chamber experts that aluminum coating on films
> tends to develop cracks which effectively insulate some
> areas from the rest. Naively, one may expect that a 5um thick layer should
> be stronger than a thin one.
>
> Which thickness are you using for the prototypes?
>
> Thanks,
> Eugene
>
>
> On Fri, 6 Mar 2009, Curtis A. Meyer wrote:
>
> > Hi Tim -
> >
> > what we observed with the 1mu is that there are scratches on it. I was
> > hoping that by going to a thicker layer, we could reduce the the chance
> > of that occuring. As long as the finish is "clean", I am ok with 1 mu, I was
> > just hoping to reduce the chance of problems.
> >
> > Curtis
> > On Fri March 6 2009, you wrote:
> >> Hi Curtis,
> >>
> >> I believe you currently have 1 micron thick aluminum which was vapor
> >> deposited on 3 mil Kapton. You had mentioned that you wanted to go to 2
> >> micron aluminum. I spoke with Sheldahl and they said the thickest they
> >> could do was 1 micron (and that is pushing it). Is the 2 micron really
> >> required? I will check availability with other vendors.
> >>
> >> Cheers,
> >>
> >> Tim
> >>
> >>
> >
> >
> >
> > --
> > Professor Curtis A. Meyer Department of Physics
> > Phone: (412) 268-2745 Carnegie Mellon University
> > Fax: (412) 681-0648 Pittsburgh PA 15213-3890
> > cmeyer@ernest.phys.cmu.edu http://www.curtismeyer.com/
> >
>
--
Professor Curtis A. Meyer Department of Physics
Phone: (412) 268-2745 Carnegie Mellon University
Fax: (412) 681-0648 Pittsburgh PA 15213-3890
cmeyer@ernest.phys.cmu.edu http://www.curtismeyer.com/