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Post-Irradiation Study of the Alanine Dosimeter



Marc F. Desrosiers


Post-irradiation stability of high-dose dosimeters has traditionally been an important measurement influence quantity. Though the exceptional stability of the alanine dosimeter response with time has rendered this factor a non-issue for routine work, the archival quality of the alanine dosimeter has not been characterized. Here the alanine pellet dosimeter response is measured up to seven years post-irradiation for a range of absorbed doses. This long-term study is accompanied by an examination of the environmental influence quantities (e.g., ambient light) on the relatively short-term (3-4 month) stability of both pellet and film commercial dosimeters. Both dosimeter types demonstrated exceptional stability in the short term and proved to be relatively insensitive to common influence quantities. The long-term data revealed a complex dose-dependent response trend.
Journal of Research (NIST JRES) -


alanine, dosimetry, electron paramagnetic resonance, gamma radiation, stability, time


Desrosiers, M. (2014), Post-Irradiation Study of the Alanine Dosimeter, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed May 29, 2024)


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Created July 14, 2014, Updated November 10, 2018