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A comparative study based on dosimetric properties of different sugars
Z M Da Costa1, W M Pontuschka, L L Campos
1Instituto de Física da Universidade de São Paulo/IFUSP, Departamento de Física Geral-Ala I Cidade Universitária, R. do Matão, Travessa R, No.187- 05508-900 São Paulo, Brazil. zamada@if.usp.br
Summary
Electron spin resonance (ESR) using sugar can determine accidental radiation doses. This study establishes practical methods for dose assessment in sucrose and dextrose following irradiation accidents.
Area of Science:
- Medical Physics
- Radiation Dosimetry
- Analytical Chemistry
Background:
- Accidental irradiation requires accurate dose assessment.
- Sugar is a potential dosimeter due to its ability to retain radiation history.
- Electron Spin Resonance (ESR) can detect radiation-induced changes in sugar.
Purpose of the Study:
- To establish practical methods for radiation dose assessment using sugar.
- To evaluate sucrose and dextrose as dosimeters for accidental irradiation.
- To investigate the feasibility of using ESR for quantifying radiation exposure in sugar.
Main Methods:
- Sample preparation and characterization (grain size, spectrum).
- Electron Spin Resonance (ESR) measurements on irradiated sucrose and dextrose.
- Analysis of signal reproducibility, radiation response, stability, and low-dose detection.
Main Results:
- Demonstrated the utility of ESR for detecting radiation history in sugar.
- Characterized the ESR spectra of irradiated sucrose and dextrose.
- Assessed the reliability and sensitivity of sugar-based ESR dosimetry for accident scenarios.
Conclusions:
- ESR spectroscopy of sugar provides a viable method for retrospective dose assessment after irradiation accidents.
- Sucrose and dextrose show promise as practical dosimeters for emergency response.
- Further studies can refine ESR techniques for improved accuracy in accidental dosimetry.