辐射研究与辐射工艺学报2026，Vol.44Issue(3)：105-114,10.DOI:10.11889/j.1000-3436.2025-0095
一种基于热释光剂量计的90Sr/90Y皮肤敷贴器表面吸收剂量率测量方法
A measurement method for surface absorbed dose rate of 90Sr/90Y skin applicators based on thermoluminescence detectors
摘要
Abstract
90Sr/90Y applicators are currently widely used in the field of radiotherapy for superficial skin diseases.According to the relevant regulations of the GBZ 120-2020 health standard,the surface absorbed dose rate of the radioactive source needs to be corrected every two years,and the reference point dose rate needs to be detected once a year.In response to this,this work used thin LiF(Mg,Cu,P)and LiF(Mg,Ti)thermoluminescence detectors for measurement.The measurement results were compared with the reference dose rate data provided by the hospital.At the same time,an optimized ionization chamber was used for synchronous measurement to verify the accuracy of the measurement.This work independently designed a measurement device.The results show that the maximum error between the surface dose rate measured by the thermoluminescence detector and the data provided by the hospital is less than 11%.A calibration method for the surface dose rate of β applicators that can be traced and does not require the use of ionization chambers or films is proposed,providing a reference method for self-testing by institutions.Combined with practical applications,this method has a high degree of universality.关键词
敷贴器/热释光剂量计/电离室/吸收剂量率Key words
Patch applicator/Thermoluminescence detector/Ionization chamber/Absorbed dose rate分类
能源科技引用本文复制引用
李仲林,徐冬昆,任飞旭,吴川,冯莉娟,杨勇,黄平..一种基于热释光剂量计的90Sr/90Y皮肤敷贴器表面吸收剂量率测量方法[J].辐射研究与辐射工艺学报,2026,44(3):105-114,10.基金项目
中国测试技术研究院人才基金(RC202404) Supported by Talent Fund of National Institute of Measurement and Testing Technology(RC202404) （RC202404）
