[ RadSafe ] TLD Glow Curve Question

[Baratta, Edmond J]

Back in 1985, a colleague of mine did a study and literature search.  He
published an in-house article on LiF TLD Fading.  His study concluded that
with time, irradiated TLDs can expect some fading.  Also those that are
store for a specific period of time at ambient temperatures and not
irradiated, can expect fading or 'loss of signal'.

Ed

Edmond J. Baratta
Radiation Safety Officer
Tel. No. 781-729-5700, ext 728
FAX: 781-729-3593


-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On Behalf
Of Falo, Gerald A Dr KADIX
Sent: Thursday, August 25, 2005 8:17 AM
To: radsafe at radlab.nl
Subject: [ RadSafe ] TLD Glow Curve Question

Hi all,

These discussions about background subtraction concerning TLDs and so on
got me wondering about other spurious readings on TLDs. Do current TLD
readers analyzed the glow curve itself to detect anomalies that would
indicate and non-radiation related result? I recall some work from the
mid-1980s that showed glow curves from impacts, sweat, soap, etc., but I
don't recall if glow curve anomalies were used to discriminate against
spurious readings.

Thanks,
Jerry
________________________________

The statements and opinions expressed herein are my responsibility; no
one else (certainly not my employer) is responsible, but I still reserve
the right to make mistakes.
 
Don't panic! - Douglas Adams in "The Hitchhiker's Guide to the Galaxy"
 
Gerald A. Falo, Ph.D., CHP
Kadix Systems 
U.S. Army Center for Health Promotion and Preventive Medicine - Health
Physics Program
jerry.falo at us.army.mil
410-436-4852
 

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