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Article Dans Une Revue Radiation Measurements Année : 2021

Formation of different types of paramagnetic centers in the alanine dosimeters exposed to alpha and gamma radiation - Study by EPR spectroscopy

Résumé

EPR spectra of alanine dosimeters irradiated by gamma-rays and by alpha-particles were measured at different microwave power. The spectra were decomposed into three components corresponding to different stable radiation-induced radicals. Different ratio of the components was obtained for gamma- and alpha-irradiated alanine. The observed effect can be used for discrimination of the contribution of alpha- and gamma-radiation in mixed radiation field. That may be useful for control of dose at phantom experiments with neutron boron capture therapy, performed in mixed neutron-gamma field in which alpha-particles are emitted through neutrons capture reaction with boron.
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hal-03370257 , version 1 (12-10-2021)

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Paternité - Pas d'utilisation commerciale - Pas de modification

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Alexandre I Ivannikov, A.M. M Khailov, S.P. P Orlenko, Valeriy F Stepanenko, Francois Trompier, et al.. Formation of different types of paramagnetic centers in the alanine dosimeters exposed to alpha and gamma radiation - Study by EPR spectroscopy. Radiation Measurements, 2021, 140, pp.106467. ⟨10.1016/j.radmeas.2020.106467⟩. ⟨hal-03370257⟩

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