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Commercial glass for high doses using different dosimetric techniques.

L V E Caldas¹, M I Teixeira

¹Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, São Paulo, SP, Brazil. lcaldas@net.ipen.br

Radiation Protection Dosimetry

|October 18, 2002

Summary

This study evaluated glass for high-dose radiation processing dosimetry. Results indicate its potential for ionizing radiation applications, despite considerations for thermal fading.

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Area of Science:

Materials Science
Radiation Physics
Analytical Chemistry

Background:

Accurate high-dose dosimetry is critical for radiation processing applications.
Developing reliable and cost-effective dosimetric materials is an ongoing research area.
Glass offers potential as a robust matrix for radiation detection.

Purpose of the Study:

To assess the suitability of glass samples for high-dose dosimetry in radiation processing.
To determine key dosimetric characteristics of the selected glass material.
To evaluate the influence of thermal decay on the dosimetric response.

Main Methods:

Utilized densitometry, spectrophotometry, and thermoluminescence (TL) reading.
Measured lower detection threshold and reproducibility.

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Assessed response to 60Co gamma radiation and thermal decay at room temperature.

Main Results:

The glass samples exhibited measurable responses to gamma radiation.
Key dosimetric properties, including detection threshold and reproducibility, were quantified.
Thermal fading at room temperature was observed and characterized.

Conclusions:

The tested glass material demonstrates potential utility for high-dose dosimetry in various radiation processing applications.
The material's dosimetric performance is influenced by thermal fading, which must be considered in practical use.
Further research may optimize glass composition for enhanced dosimetric stability.