[ RadSafe ] Optical Couplant

[Edmond Baratta]

I believe only the older ones were coupled.  Most of the newer ones are 
coupled directly and sealed.  The manufacturers used to supply (sell) the 
material to couple the older ones.

Ed Baratta

edmond0033 at comcast.net

--------------------------------------------------
From: <alstonchris at netscape.net>
Sent: Tuesday, October 27, 2009 6:10 PM
To: <syd.levine at mindspring.com>
Cc: <radsafe at radlab.nl>
Subject: Re: [ RadSafe ] Optical Couplant

>
> 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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