Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1888356 | Radiation Measurements | 2013 | 4 Pages |
Within a 1.5 year comprehensive fading experiment several batches of LiF:Mg,Ti and LiF:Mg,Cu,P thermoluminescence detectors (TLDs) were studied. The TLDs originated from two manufacturers and were processed by three laboratories using different annealing and readout conditions. The TLDs were irradiated with two radiation modalities (gamma rays and thermal neutrons) and were stored at two temperatures (−17.4 °C and +18.5 °C). The goal of the experiment was to verify the stability of TLDs in the context of their application in long-term measurements in space.The results revealed that the response of all TLDs is stable within 10% for the studied temperature range. No influence of the radiation type was found. These results indicate that for the properly oven-annealed LiF TLDs, fading is not a significant problem, even for measuring periods longer than a year.
► 1.5 Year intercomparison of TLD fading properties was performed. ► TL intensity was found to be stable within 10% for all patterns of irradiation. ► No difference between gamma-ray an neutron exposure was found. ► No significant difference between +18 °C and −17 °C storage temperature was found.