[Moller_intdet] [EXTERNAL] Ring 5 prototype

[Michael Gericke]

Hi Jim,

Yes, for next prototype we want it to be black and printed from 
radiation hard material.

This was printed with the material that was being used here already and 
should be considered a first assembly test. For that purpose this was 
ideal, since we were able to identify some issues
with the design that we need to address. Thanks to Wouter pushing the 
purchase of so much new equipment here, through the faculty no less, we 
should be in a position to turn out the next prototypes pretty rapidly, 
over the summer,
until we have something that works really well. It is very useful, even 
if we end up deciding to have it machined from aluminum in the end.

Michael

On 2021-05-03 7:06 a.m., James Fast wrote:
>
> 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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