[dsg-hallb_rich] [EXTERNAL] spherical mirrors

[Marco Mirazita]

Hi Tyler,
the shipment is not set up yet, plus I would like that one of the 
mirrors to be tested would be picked up from the two that are in 
production now. Therefore most likely they will not be delivered by the 
end of June, you'll find them when you'll be back from vacation.
I'll keep you all informed.
Marco



Il 2021-06-25 15:11 Tyler Lemon ha scritto:
> Hi Marco,
> 
>  We'll have the test set up ready at the start of next week (Monday
> June 28 or Tuesday June 29).
> 
>  When are the two mirrors expected to be at JLab?
> 
>  I will be on vacation from Wednesday June 30 through Wednesday July
> 7.
> 
>  If the mirrors arrive within that time, Valery will have to receive
> the mirrors and move them to the cleanroom. We will be able to start
> the D0 tests on Thursday July 8.
> 
>  -Tyler
> 
> -------------------------
> 
> From: Marco Mirazita <Marco.Mirazita at lnf.infn.it>
> Sent: Friday, June 25, 2021 4:18 AM
> To: Tyler Lemon <tlemon at jlab.org>; Valery Kubarovsky <vpk at jlab.org>
> Cc: marco mirazita <marco.mirazita at lnf.infn.it>; marco contalbrigo
> <mcontalb at fe.infn.it>
> Subject: [EXTERNAL] spherical mirrors
> 
> Dear Valery and Tyler,
> yesterday we had a phone meeting with CMA about the production of the
> RICH spherical mirrors.
> They produced 4 mirrors and 2 are being completed in the next days.
> We agreed that CMA will ship two mirrors to JLab for testing. The
> testing will include a visual inspection and a D0 measurement. Since
> the
> mirrors are uncoated, no reflectivity measurement has to be done.
> If everything is ok as we hope, than the two mirrors have to be
> shipped
> back to CMA.
> I just want to check with you that the test setup is ready and you can
> 
> perform the tests quickly as soon as the mirrors are at JLab.
> Thank you,
> Marco