ESR measurement of carbonated hydroxyapatite for dosemeter.

IF 0.8 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Radiation protection dosimetry Pub Date : 2024-11-13 DOI:10.1093/rpd/ncae147

Hajime Seito, Eri Yokozuka, Toshitaka Oka, Yoshihiro Kitatsuji, Naotsugu Nagasawa

引用次数: 0

Abstract

We have examined a dosimetry characteristic of carbonate hydroxyapatite (CO3HAp), which is a dental bone graft material. The purpose of this work is to investigate the reproducibility and stability of radiation-induced radicals on CO3HAp samples and assess the feasibility of using these materials as dosemeters. CO3HAp samples were exposed to gamma rays with dose range from 10 to 10 000 Gy. The electron spin resonance (ESR) spectra for irradiated samples were measured. Variation of peak-to-peak amplitude of the ESR signal intensity as a function of absorbed dose for CO3HAp was compared with that for alanine dosemeters, suggesting that the CO3HAp sample has a good linear dose response in the range from 10 to 10 000 Gy as well as does the alanine dosemeters.

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用于剂量计的碳化羟基磷灰石 ESR 测量。

我们研究了作为牙科植骨材料的碳酸盐羟基磷灰石（CO3HAp）的剂量测定特性。这项工作的目的是研究 CO3HAp 样品上辐射诱导自由基的重现性和稳定性，并评估将这些材料用作剂量计的可行性。CO3HAp 样品暴露于剂量范围为 10 至 10 000 Gy 的伽马射线中。测量了辐照样品的电子自旋共振（ESR）光谱。与丙氨酸剂量计相比，CO3HAp 样品的 ESR 信号强度的峰-峰振幅随吸收剂量的变化情况表明，CO3HAp 样品与丙氨酸剂量计一样，在 10 至 10,000 Gy 的剂量范围内具有良好的线性剂量响应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Radiation protection dosimetry 环境科学-公共卫生、环境卫生与职业卫生

CiteScore

1.40

自引率

10.00%

发文量

223

审稿时长

6-12 weeks

期刊介绍： Radiation Protection Dosimetry covers all aspects of personal and environmental dosimetry and monitoring, for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring, accident dosimetry, and dosimetry related to the protection of patients. Particular emphasis is placed on papers covering the fundamentals of dosimetry; units, radiation quantities and conversion factors. Papers covering archaeological dating are included only if the fundamental measurement method or technique, such as thermoluminescence, has direct application to personal dosimetry measurements. Papers covering the dosimetric aspects of radon or other naturally occurring radioactive materials and low level radiation are included. Animal experiments and ecological sample measurements are not included unless there is a significant relevant content reason.