[Sneap] Coating CsI Crystal

[John Stoner]

Dear SNEAP:

CsI is very deliquescent - it absorbs water when exposed to air.  Does your
crystal have a coating to prevent this?  Coating with aluminum is an
entirely different problem in the two cases: with or without such a
protective coating.

John Stoner
ACF-Metals



on 2/26/09 8:43 AM, Dannie Steski at steski at bnl.gov wrote:

> 
> 
> 
> Dear SNEAPers
> 
> I have had a request to coat a CsI crystal with 50nm of Al. I have done it
> with other detectors but not CsI.
> 
> Does any one have any experience doing this?
> 
> Is there any special way to clean the surface of the Cs I crystal?
> 
> Any advice would be appreciated.
> 
> thanks
> 
> Dannie
> *************************************************
> Dannie Steski
> 
> Building 901A
> Brookhaven National Laboratory
> Upton, NY
> 11973
> 
> Tel: 631-344-4581
> Fax: 631-344-4583
> Steski at bnl.gov
> 
> 
> 
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