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RESEARCH PRODUCT
Power saturation of ESR signal in ammonium tartrate exposed to 60Co gamma-ray photons, electrons and protons.
Maurizio MarraleMaria Cristina D'ocaAlessandro TrioloMaria BraiAntonio Bartolottasubject
PhotonBiophysicsLinear energy transferElectronsElectronRadiationRadiation DosageSensitivity and Specificitylaw.inventionlawRadiology Nuclear Medicine and imagingLinear Energy TransferIrradiationCobalt RadioisotopesElectron paramagnetic resonanceRadiometrySaturation (magnetic)TartratesPhotonsRadiationDosimeterChemistryElectron Spin Resonance SpectroscopyReproducibility of ResultsDose-Response Relationship RadiationAmmonium Tartrate 60Co -Ray Photons Electrons and Protons.Gamma RaysAtomic physicsProtonsAlgorithmsdescription
Abstract Marrale, M., Brai, M., Triolo, A., Bartolotta, A. and D'Oca, M. C. Power Saturation of ESR Signal in Ammonium Tartrate Exposed to 60Co γ-Ray Photons, Electrons and Protons. Radiat. Res. 166, 802–809 (2006). In this paper we present an investigation of the electron spin resonance (ESR) line shape of ammonium tartrate (AT) dosimeters exposed to radiation with different linear energy transfer (LET). We exposed our dosimeters to γ-ray photons (60Co), 7 MeV and 14 MeV initial energy electrons, and 19.3 MeV initial energy protons. The differences in the power saturation behavior of ESR spectra of AT irradiated with photons, electrons and protons could be correlated to the effective LET of the radiation beams. We analyzed the behavior of peak-to-peak amplitude as a function of microwave power, and we developed a fitting procedure that permits us to obtain the dependence of the homogeneity parameter of the line shape on the LET of the radiation using the Castner saturation theory. This simple procedure a...
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-01-01 | Radiation research |