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| Intercomparison on the Measurements of Radionuclides in the Ceramic Brick of China |
| ZHANG Jing, XU Cui-hua, ZHANG Qing |
| National Institute for Radiological Protection, Chinese Center for Disease Control and Provention, Bei jing 100088 China |
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Abstract Objective To inspect the veracity and reiteration of γ-spectrometry in radioactive measurements.Methods To be performed by multilateral intercomparison on measurements of radionuclides in two kinds of Chinese ceramic brick samples with γ-spectrometry between laboratories of Japan and of China.Results The maximum difference of which the values measured by our laboratory related to the total average is 4.21%, and with an equipotent probability of positive and negative difference occurred.These showed that the veracity and reiteration of our measurement system are fine without obviously system errors.Conclusion It has proved that the quality guarantee system and quality control technology of our γ-spectrum system is perfected and effective up to now.
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Received: 05 December 2006
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