[ RadSafe ] Optical Couplant

[alstonchris at netscape.net]

Syd

Is there nothing in Knoll (Radiation Detect and Measure) that's useful on this subject?  Also, e.g., research-grade NaI crystals are mated directly to the PMT, no?

Cheers 
cja


-----Original Message-----
From: Syd H. Levine <syd.levine at mindspring.com>
To: J. Marshall Reber <jmarshall.reber at comcast.net>
Cc: radsafe at radlab.nl
Sent: Sat, Oct 17, 2009 10:16 pm
Subject: Re: [ RadSafe ] Optical Couplant


I looked for something, even qualitative, and could not find anything interesting. I found some stuff related to fiber optics that surprised me (not as big an improvement as I expected), but I do not know how that applies to scintillation detectors. I do not *think* a scintillation detector will work at all without coupling compound. 
 
Syd 
 
----- Original Message ----- From: "J. Marshall Reber" <jmarshall.reber at comcast.net> 
To: "Syd H. Levine" <syd.levine at mindspring.com> 
Cc: <radsafe at radlab.nl> 
Sent: Saturday, October 17, 2009 3:48 PM 
Subject: Re: [ RadSafe ] Optical Couplant 
 
> 
> On Oct 17, 2009, at 4:21 PM, Syd H. Levine wrote: 
> 
>> I finally got around to writing a page about optical coupling compounds: 
>> http://www.logwell.com/tech/servtips/optical_coupling_grease.html 
>> 
>> Comments or criticisms needed and much appreciated. 
> 
> It would be useful to quote in quantitative terms the actual light > transmission improvement of using the coupling compounds. 
> 
> Unfortunately I am unaware of such data. 
> 
> J. Marshall Reber, ScD 
> 165 Berkeley St. 
> Methuen MA 01844 
> 
> Tel/Fax: 978-683-6540 
> Alternate Email: reber at alum.mit.edu 
> 
> 
> 
>  
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