[dsg-hallb_rich] [EXTERNAL] Report on the RICH assembly

[Marco Contalbrigo]

Dear all,
let me second Marco: thanks to DSG and to the heroic travel
of our Frascati friends! The mission accomplished is
extraordinary. Bests, Marco.

On Mon, 31 Jan 2022, Marco Mirazita wrote:

> Dear all,
> last week we completed the first round of the second RICH module assembly.
> I want to thank the DSG, in particular Tyler, Marc and George, and to Valery 
> for the support they provided during these two weeks.
> And a big thank must go to Dario and Sandro, traveling from Italy to USA 
> during these days was not easy at all.
> Here is a brief summary of what has been done and few words on the plans for 
> the next activities, we will have more detailed discussions at the next RICH 
> meeting.
>
> 1) The RICH vessel has been successfully assembled. This includes the 
> installation of the frontal panels, of the electronic panel and of the the 
> frame of the tedlar window.
> 2) The RICH was rotated up and down once, no issues were found.
> 3) The new procedure to install the electronic panel has been tested; besides 
> the fact that few details must be revised, the test was successful
> 4) We didn't have time to do much on the tedlar window except for mounting 
> the frame on the RICH; we leave the rest of the work to the Argonne personnel
> 5) The need for a revision of the spherical mirror mounts has been 
> identified, we will have a phone meeting with CMA soon to discuss this point; 
> after that, the new top part of the mounts can be printed at JLab and 
> eventually the mirrors shipped back to CMA
>
> The RICH has been left in horizontal position with the frontal panels and the 
> frame of the tedlar window installed. I would ask DSG to cover the detector 
> with a plastic sheet to preserve it from dust.
> The electronic panel is on its frame, ready for the assembly of the boards.
> We discussed with Tyler and Marc several items to be purchased for the next 
> activities, I will prepare a summary list for the next meeting.
> Best regards,
> Marco
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