RE: Aluminum oxide TLDs

["Lieskovsky, Miro" <MLieskovsky@nbpower.com>]

Christopher,

Al2O3 may be suited for the environmental measurements; proper
filtration [plastic and a perforated Pb(!!) filter] may give you even a
very suitable energy response , for example equivalent to H*(10)from few
keV up.  I tested a similar product as a part of my thesis.

They may have a reasonable sensitivity (~ few mR); thus your monitoring
period with a proper care may go down to ~2 weeks, however be careful
about their own background as glass tends to have 40K in it.  Their
response to cosmic rays should be also addressed.

Miroslav Lieskovský
Health Physicist
NB POWER - PLGS - HP Dep't
PO BOX 10, Lepreau, NB, Canada, E0G 2H0
tel. (506) 659 7421, fax. (506) 659 6507
mlieskovsky@nbpower.com





> -----Original Message-----
> From: Clement, Christopher [mailto:clementc@aecl.ca]
> Sent: Tuesday, January 05, 1999 2:39 PM
> To: Multiple recipients of list
> Subject: Aluminum oxide TLDs
> 
> 
> I recently posted a question regarding the use of TLDs for 
> environmental
> monitoring.  While looking around for the best solution, I got some
> information on Landauer's "X9" environmental/low level 
> dosimetry service
> which uses aluminum oxide (Al2O3:C) TLDs.  Does anyone have 
> any experience
> with this type?  Their info page is
> 
> http://www.landauerinc.com/products/x92077.html
> 
> 
> ------------------------------------------------------------
> Christopher H. Clement
> Scientific Specialist / Radiation Protection Program Manager
> Low-Level Radioactive Waste Management Office
> Atomic Energy of Canada Limited
> clementc@aecl.ca
> **************************************************************
> **********
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