[Dsg-rich] Fwd: [EXTERNAL] Fwd: RICH prototype mirror reflectivity summary

[Patrizia Rossi]

Hi Tyler,

more appreciation from the chilean group.
Is it possible to measure longer wavelengths as per their request?

Thanks
patrizia
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Begin forwarded message:

From: William Brooks <william.brooks at usm.cl<mailto:william.brooks at usm.cl>>
Subject: [EXTERNAL] Fwd: [Dsg-rich] RICH prototype mirror reflectivity summary
Date: 10 January 2020 at 02:45:25 CET
To: Patrizia Rossi <rossi at jlab.org<mailto:rossi at jlab.org>>

Appreciation from our people, fyi. Gabriela is the person (Physics Masters student) making the shiny deposition, the others are engineer (Pedro) and top manager/ PhD astronomer (Amelia).

Begin forwarded message:

From: Pedro Mardones <pmardone at npf.cl<mailto:pmardone at npf.cl>>
Subject: Re: [Dsg-rich] RICH prototype mirror reflectivity summary
Date: January 9, 2020 at 22:16:14 GMT-3
To: Amelia Bayo <abayo at npf.cl<mailto:abayo at npf.cl>>
Cc: William Brooks <william.brooks at usm.cl<mailto:william.brooks at usm.cl>>, Gabriela Hamilton <gabihamilton at gmail.com<mailto:gabihamilton at gmail.com>>

Good idea Amelia  !!

El jue., 9 ene. 2020 a las 22:11, Amelia Bayo (<abayo at npf.cl<mailto:abayo at npf.cl>>) escribió:
That is pretty good indeed!! Also with little wl dependence from uv to red light :) can they measure longer wavelengths??
Cheers and thanks for the info!!!
Amelia

Sent from my iPhone

On Jan 9, 2020, at 10:01 PM, William Brooks <william.brooks at usm.cl<mailto:william.brooks at usm.cl>> wrote:

Dear all,

Jlab measured the mirror today. They found an average of 85% reflectivity. There is a lot more information in the attached file, including wavelength dependence (look at the different tabs in the spreadsheet).

For a first try, I’d say that’s quite good. I think 95% is pretty much the maximum possible.

Thanks,

 - Will


Begin forwarded message:

From: Patrizia Rossi <rossi at jlab.org<mailto:rossi at jlab.org>>
Subject: Fwd: [Dsg-rich] RICH prototype mirror reflectivity summary
Date: January 9, 2020 at 18:59:39 GMT-3
To: William Brooks <william.brooks at usm.cl<mailto:william.brooks at usm.cl>>


<2019-01-09_prototype-mirror-refl_summary.xlsx>


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