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AK3 target

To: Tom Banks <tbanks@socrates.berkeley.edu>
Subject: AK3 target
From: Claude Petitjean <claude.petitjean@psi.ch>
Date: Wed, 25 Jan 2006 12:39:42 +0100
Cc: Bernhard Lauss <lauss@berkeley.edu>, Steven Clayton <smclayto@uiuc.edu>, Brendan Kiburg <kiburg@npl.uiuc.edu>, Grey Fred Berkeley <fegray@socrates.berkeley.edu>, Peter Kammel <kammel@npl.uiuc.edu>, Winter Peter <peter.winter@psi.ch>
In-reply-to: <Pine.SOL.4.56.0601231422450.25646@socrates.Berkeley.EDU>
Organization: PSI
References: <Pine.SOL.4.56.0601231422450.25646@socrates.Berkeley.EDU>
User-agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.7.3) Gecko/20040910

Dear all,

on yesterdays teleconf you asked me about the size
of the AK3 target used last fall for mu+ lifetime
measurements.

I measured the dimensions as follows:

area  143 x 156 mm2.

in the center its thickness is enhanced by a circular
disk with diameter 93 mm.

in each of the 4 corners there is a little M3 screw,
5-6 mm off the edge lines.

the target was mounted perpendicalar to the beam axis.

regards, Claude

PS: Sorry, I had no camera at hand. Is it still
necessary to make a photo?

References:
- Tuesday, Jan. 24, 2006 MuCap teleconference: 217-265-6999
  - From: Tom Banks <tbanks@socrates.berkeley.edu>

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