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Electron Spin Resonance Dosimetry Studies of Irradiated Sulfite Salts

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Author(s):
Rech, Amanda Burg ; Kinoshita, Angela ; Donate, Paulo Marcos ; Nascimento, Otaciro Rangel ; Baffa, Oswaldo
Total Authors: 5
Document type: Journal article
Source: Molecules; v. 27, n. 20, p. 9-pg., 2022-10-01.
Abstract

The study of new materials for radiation dosimetry is important to improve the present state of the art and to help in cases of accidents for retrospective dosimetry. Sulfites are compounds that contain a sulfur ion, widely used in the food industry. Due to the significant application of these compounds, sulfites are interesting candidates for accidental dosimetry, as fortuitous radiation detectors. The presence of the SO3- anion enables its detection by electron spin resonance (ESR) spectroscopy. The Dose-Response behavior, signal stability and other spectral features were investigated for sodium sulfite, sodium bisulfite, sodium metabisulfite and potassium metabisulfite, all in crystalline forms. The ESR spectrum of salts presented stability and proportional response with dose, presenting potential for dosimetry applications. (AU)

FAPESP's process: 13/07699-0 - Research, Innovation and Dissemination Center for Neuromathematics - NeuroMat
Grantee:Oswaldo Baffa Filho
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 13/03258-9 - Study and characterization of organic materials for small field dosimetry with electronic magnetic resonance
Grantee:Amanda Burg Rech
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 07/06720-4 - Advances in electron spin resonance dosimetry, archeological dating and biomaterials characterization
Grantee:Oswaldo Baffa Filho
Support Opportunities: Regular Research Grants