| LIU Qingjie,MA Wensheng,YANG Yingjie,et al.Retrospective ESR dosimetry for persons chronically exposed to ionizing radiation[J].Chinese Journal of Radiological Medicine and Protection,2002,22(6):440-442 |
| Retrospective ESR dosimetry for persons chronically exposed to ionizing radiation |
| Received:March 26, 2002 |
| DOI： |
| KeyWords:Electron spin resonance Tooth enamel Chronic radiation damage Radiation energy |
| FundProject: |
| Author Name | Affiliation | | LIU Qingjie | Institute for Radiological Protection and Nuclear Safety, China CDC, Beijing 100088, China | | MA Wensheng | 中国医学科学院放射医学研究所 | | YANG Yingjie | Institute for Radiological Protection and Nuclear Safety, China CDC, Beijing 100088, China | | 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 | Institute for Radiological Protection and Nuclear Safety, China CDC, Beijing 100088, China | | 陈德清 | Institute for Radiological Protection and Nuclear Safety, China CDC, Beijing 100088, China |
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| Abstract:: |
| 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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