[Solid_cc] clas12 LTCC update

[Zein-Eddine Meziani]

Zhiwen,

I would not recommend this solution especially for PVDIS. The reflectivity of the mirrors is quite small at 200nm. To take full advantage of the wavelength shifter coating it would be important to have the reflectivity optimized so that it is still high down to 180 nm.
The SANE experiment Cherenkov mirrors coated at CERN used in conjunction with quartz 3” tubes had on average 84% down to  180 nm and dropped to 80% at 160nm.

Z.-E.
> On Aug 28, 2017, at 1:25 PM, Zhiwen Zhao <zwzhao at jlab.org> wrote:
> 
> Hi, All
> 
> Here is an update Mauri gave for CLAS12 LTCC
> http://clasweb.jlab.org/group_meeting_minutes/Physics/talks_2017/ltcc-8-28.pdf
> 
> Things are interesting to SoLID LGC and HGC
> 1. slide 4,5,6 shows nice reflection of thin film as mirror, which could be a cheap alternative to expensive CFRP mirror
> 2. slide 13, 03-1.1kg/day leak rate.
> 
> Zhiwen
> _______________________________________________
> Solid_cc mailing list
> Solid_cc at jlab.org
> https://mailman.jlab.org/mailman/listinfo/solid_cc


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/solid_cc/attachments/20170828/ec2a20fe/attachment.html>