Re: Aluminum oxide TLDs

["David Levy"<david.levy@fernald.gov>]

     First, understand that I do NOT work for Landauer.  Nor have I used 
     their X9 TLD since it has been on the market.
     
     HOWEVER, my master's thesis dealt with performing laboratory 
     experiments on the Al2O3:C material FOR LANDAUER.  I tested the 
     'chips' for linearity in response to low dose rates under a variety of 
     conditions.  I would have to do some digging to recall the full range 
     of testing that I did, but I do remember that results were always very 
     linear and, as a result of my work, Landauer decided to go ahead and 
     market these chips as environmental TLDs.  My first assumption would 
     be that the chips work just as well today as they did then 
     (1991-1992).
     
     Good luck!
     
     David Levy
     david.levy@fernald.gov
     Health Physicist
     Fluor Daniel Fernald


______________________________ Reply Separator _________________________________
Subject: Aluminum oxide TLDs 
Author:  <radsafe@romulus.ehs.uiuc.edu> at FE-INTERNET
Date:    1/5/1999 12:40 PM


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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