WU Wei-zhang,YU Ao,DAI Guang-fu,et al.Application of enamel EPR deconvolution program in radiation dose reconstruction[J].Chinese Journal of Radiological Medicine and Protection,2005,25(3):281-282 |
Application of enamel EPR deconvolution program in radiation dose reconstruction |
Received:June 08, 2004 |
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KeyWords:Enamel EPR Simulation Dose response curve |
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Abstract:: |
Objective To investigate the application of enamel EPR deconvolution program in dose reconstruction in the low dose region. Methods A series of deconvolution procedure were composed to simulate the EPR spectra of the enamel samples irradiated by different low doses, and the corresponding radiation-induced signal (RIS) intensities were obtained. The dose-response curve was depicted by linear regression of RIS intensities versus the nominal doses. The accuracy of the spectra processing procedure was also discussed. Results The dose-response curve: IRIS=14.04+0.768D (mGy), the correlation coefficient was 0.997, and SD=19.8 mGy. Conclusion The technology can decrease the lower limit of the reconstructed enamel EPR dose to around 200 mGy. |
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