Abstract 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.

中文翻译：

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暴露于 α 和 γ 辐射的丙氨酸剂量计中不同类型顺磁中心的形成 - EPR 光谱研究

摘要 在不同的微波功率下测量了伽马射线和α粒子辐照丙氨酸剂量计的EPR谱。光谱被分解为对应于不同稳定辐射诱导自由基的三个分量。对于γ-和α-辐照的丙氨酸，获得了不同比例的组分。观察到的效应可用于区分混合辐射场中 α 和 γ 辐射的贡献。这可能有助于控制中子硼俘获疗法幻象实验中的剂量，该疗法在混合中子-伽马场中进行，其中通过与硼的中子俘获反应发射 α 粒子。