中华放射医学与防护杂志

刘青杰,马文盛,杨英杰,等.用牙釉电子自旋共振方法估算慢性辐射损伤人员的受照剂量[J].中华放射医学与防护杂志,2002,22(6):440-442.LIU Qingjie,MA Wensheng,YANG Yingjie,et al.Retrospective ESR dosimetry for persons chronically exposed to ionizing radiation[J].Chin J Radiol Med Prot,2002,22(6):440-442

用牙釉电子自旋共振方法估算慢性辐射损伤人员的受照剂量

Retrospective ESR dosimetry for persons chronically exposed to ionizing radiation

投稿时间：2002-03-26

DOI：

中文关键词: 电子自旋共振牙釉慢性辐射损伤射线能量

英文关键词:Electron spin resonance Tooth enamel Chronic radiation damage Radiation energy

基金项目:

作者	单位
刘青杰	100088 北京, 中国疾病预防控制中心辐射防护与核安全医学所
马文盛	中国医学科学院放射医学研究所
杨英杰	100088 北京, 中国疾病预防控制中心辐射防护与核安全医学所
姜恩海	河北医科大学附属口腔医院
江波	河北医科大学附属口腔医院
刘冬梅	中国医学科学院放射医学研究所
陈金娣	100088 北京, 中国疾病预防控制中心辐射防护与核安全医学所
陈德清	100088 北京, 中国疾病预防控制中心辐射防护与核安全医学所

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中文摘要:

目的建立用牙釉电子自旋共振对慢性辐射损伤人员的受照剂量进行估算的方法。方法用电子自旋共振仪测定慢性辐射损伤人员牙釉电子自旋共振信号强度,用剂量-效应曲线法和附加剂量法来重建辐射损伤人员的受照剂量,探讨牙釉电子自旋共振法估算受照剂量的可行性;并比较了不同能量的射线(1.25MeV的γ射线和6MeV的X射线)对牙釉电子自旋共振信号强度的影响。结果用两种方法估算的辐射损伤人员受照剂量基本一致;对能量1.25MeV的γ射线和6MeV的X射线进行比较,无论从剂量效应曲线的直线系数,还是用混合照射后的剂量估算,两者差别不大。结论慢性辐射损伤人员的受照剂量可以用牙釉电子自旋共振方法进行估算,射线能量在1.25MeV-6MeV范围内对牙釉电子自旋共振信号强度影响不大。

英文摘要:

Objective To establish an electron spin resonance (ESR) method to estimate the dose of persons chronically exposed to ionizing radiation. Methods ESR method was used to detect the ESR signal intensities of tooth enamel samples from two persons chronically exposed to ionizing radiation.The external calibration curve method and the additive dose method were used to reconstruct the irradiation doses of those teeth in order to find whether it is feasible to estimate the chronic dose by enamel ESR.And the effects of radiation energy on the ESR signal intensities were also observed. Results The estimated doses of two teeth from each person were similar using two methods.Compared 1.25 MeV with 6 MeV X rays,the regression coefficients of the calibration curve were similar,and the doses estimated after combined irradiation were the same as the actually exposed doses. Conclusion Reconstruction of dose for persons chronically exposed to radiation can be achieved using tooth enamel ESR measurement.The radiation energy,between 1.25 MeV and 6 MeV has little effect on tooth enamel ESR measurement. ;

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