Formation of different types of paramagnetic centers in the alanine dosimeters exposed to alpha and gamma radiation - Study by EPR spectroscopy
Ivannikov A.I. Khailov A.M. Orlenko S.P. Stepanenko V.F. Trompier F. Zhumadilov K.S.
January 2021Elsevier Ltd
Radiation Measurements
2021#140
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.
Alanine dosimeter , EPR dosimetry , Ionizing radiation , Paramagnetic centers , Spectra decomposition
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A.F. Tsyb Medical Radiological Research Center, Obninsk, Russian Federation
Institut de Radioprotection et de Surete Nucleaire, Fontenay- Aux-Roses, France
L.N. Gumilyov Eurasian National University, Nur-Sultan, Kazakhstan
A.F. Tsyb Medical Radiological Research Center
Institut de Radioprotection et de Surete Nucleaire
L.N. Gumilyov Eurasian National University
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