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Polymer gel dosimeter based on itaconic acid.

Facundo Mattea¹, David Chacón², José Vedelago³

¹Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, CONICET, Córdoba, Argentina; Laboratorio de Investigación e Instrumentación en Física Aplicada a la Medicina e Imágenes por Rayos X (LIIFAMIR(X)) - Facultad de Matemática, Astronomía y Física, Universidad Nacional de Córdoba, Córdoba, Argentina.

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|August 16, 2015

Summary

This summary is machine-generated.

A novel polymeric dosimeter using itaconic acid and N,N'-methylenebisacrylamide shows a linear response to radiation up to 1000Gy. Oxygen purging during preparation uniquely altered gel composition, enhancing its potential for radiation dosimetry applications.

Keywords:

Dosimetry Itaconic acid Polymer gel Raman spectroscopy

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Area of Science:

Polymer Science
Radiation Chemistry
Dosimetry

Background:

Development of sensitive and reliable radiation dosimeters is crucial for various applications.
Polymeric materials offer tunable properties for advanced dosimetric systems.
Understanding the influence of preparation conditions on polymer network formation is key.

Purpose of the Study:

To investigate a new polymeric dosimeter based on itaconic acid and N,N -methylenebisacrylamide.
To analyze the effects of preparation methods, monomer/crosslinker composition, and oxygen presence on dosimeter performance.
To evaluate the dosimetric response of the developed material to X-ray irradiation.

Main Methods:

Synthesis of a polymeric dosimeter using itaconic acid and N,N -methylenebisacrylamide.
Irradiation of dosimeters using an X-ray tube at varying dose rates (158, 226, 298 cGy/min) up to 1000 Gy.
Analysis of monomer to crosslinker inclusion in the gel, particularly when oxygen was purged during preparation.

Main Results:

The dosimeters exhibited a linear response within the 75-1000 Gy dose range.
A sensitivity of 0.037 1/Gy was achieved at a dose rate of 298 cGy/min.
Sensitivity increased with lower dose rates, and unique monomer/crosslinker inclusion was observed when oxygen was purged.

Conclusions:

The itaconic acid and N,N -methylenebisacrylamide based dosimeter demonstrates promising linear response and sensitivity.
The observed effect of oxygen purging on gel composition is a novel finding for dosimeter development.
This polymeric system holds potential for improved radiation dosimetry, especially with further optimization.