[Moller_intdet] [EXTERNAL] Ring 5 prototype

[James Fast]

Very nice!
I am pretty sure production parts should be black to gobble up any photons that don’t totally internally reflect in the quartz, but very nice.  Is that a nylon plastic?  We do need to consider radiation hardness of these parts….we don’t want these to embrittle an become very fragile.

Jim

James Fast
MOLLER Project Manager
Jefferson Lab
757-230-6833


From: Michael Gericke <Michael.Gericke at umanitoba.ca>
Date: Friday, April 30, 2021 at 7:13 PM
To: moller_intdet at jlab.org <moller_intdet at jlab.org>, Larry Bartoszek <design at bartoszekeng.com>, James Fast <jfast at jlab.org>
Subject: [EXTERNAL] Ring 5 prototype
Hello,

Nafis and I put together the first full scale Ring 5 prototype this
afternoon (see attached figures). The entire mounting structure is 3D
printed and the quartz and light guide are installed, and we test fitted
the PMT.
The structural integrity is very good, even though we did not use a
particularly special (say carbon fiber infused) material.  We will be
improving several things we noticed, which made the assembly cumbersome
and which would eventually improve the light tightening.

Regards,

Michael

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