Formation of different types of paramagnetic centers in the alanine dosimeters exposed to alpha and gamma radiation - Study byEPR spectroscopy
| Autor: | K.Sh. Zhumadilov, Alexander Ivannikov, S.P. Orlenko, V.F. Stepanenko, François Trompier, A.M. Khailov |
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| Přispěvatelé: | Medical Radiological Research Center, Medical Radiological Research Center, (MRRC), Medical Radiological Research Center of the Russian Academy of Medical Sciences (MRRC-RAMS), PSE-SANTE/SDOS/LDRI, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), L.N.Gumilyov Eurasian National University () (E.N.U) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
inorganic chemicals
Materials science Astrophysics::High Energy Astrophysical Phenomena Physics::Medical Physics chemistry.chemical_element Radiation 01 natural sciences Spectral line 030218 nuclear medicine & medical imaging law.invention 03 medical and health sciences Paramagnetism 0302 clinical medicine law 0103 physical sciences Neutron Irradiation Electron paramagnetic resonance Boron Instrumentation 010302 applied physics [PHYS]Physics [physics] Dosimeter Radiochemistry chemistry |
| Zdroj: | Radiation Measurements Radiation Measurements, Elsevier, 2020, 140, pp.106467. ⟨10.1016/j.radmeas.2020.106467⟩ |
| ISSN: | 1350-4487 |
| DOI: | 10.1016/j.radmeas.2020.106467⟩ |
| Popis: | International audience; 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-radiationin 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. |
| Databáze: | OpenAIRE |
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