Comparison of Electronic Dosimeters to TLDs

[CHASE John -NUCLEAR <john.chase@ontariopowergeneration.com>]

Has anyone compared Electronic Dosimeter results to TLD results in nuclear
power stations. We have done so with one kind, and find that the ED
under-responds by about 12%, but it varies a little depending the station
and whether there is an outage going on or not. For our situation, the
angular response of our TLD goes above 1.0 as the angle of incidence goes to
60* and beyond, but the Electronic Dosimeter's response goes below 1.0 at
60* and beyond, because of the additional material beside and behind the
detector. Has anyone seen this kind of under-response before? Does anyone
have field data that compares the response of TLDs and EDs?


Thanks in advance

John Chase
Sr. Specialist, Dosimetry
Radiological Protection Division
Ontario Power Generation Nuclear
(905) 430-2215, ext. 3242

john.chase@ontariopowergeneration.com
<mailto:john.chase@ontariopowergeneration.com> 

************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html