Loss of TLD signal due to high temperature environmental conditions

While it is known that temperatures above 100 deg. C have an effect on the reported dose of a TLD, it is less widely known what the susceptibility is to temperatures below 100 deg. C, temperatures humans could reasonably expect to be exposed to. With the expanding nuclear industry in climates with more extreme temperatures, (e.g. United Arab Emirates and Saudi Arabia) the effect on a TLD if left on a dashboard of a car need to be evaluated. This research experimentally determined the extent of this thermal susceptibility by testing a range of high temperatures, 40 deg. C - 90 deg. C. The experimental results found that there is a statistically significant reduction in TLD-100H (natLiF:Mg,Cu,P) light output for TLDs there were exposed to temperatures as low as 40 deg. C for 8 hour durations and 50 deg. C for 2 hour durations. There is statistical difference in TLD-100H light output for elevated temperature durations of 8 hours compared to 24 hours. (authors)