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| Preliminary Experimental Research on Electron Equilibrium for Calibration of Thermoluminescent Detector |
| LI De-hong1,LI Xing-dong1,WU Meng-meng1,2,YANG Yuan-di1 |
1. National Institute of Metrology, Beijing 100013, China
2. Chengdu University of Technology, Chengdu, Sichuan 610051, China |
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Abstract TLD are widely used in environmental radiation monitoring and personal dose monitoring.To ensure the accuracy of TLD calibration in the radiation field, especially when the high-energy γ-rays are used,the front surface of TLD is supposed to be covered by electronic balance material.Through a series of experiments on the PMMA of different thickness as electronic balance material used to be covered on the front surface of TLD in different radiation fields, it is discovered the PMMA of certain thickness must be needed in Co-60 radiation field,while in the Cs-137 radiation field, the PMMA is relative thin.
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2011, Vol. 32 
