| 基于点源~(133)Ba刻度~(131)I探测效率的面积加权法 |
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| 引用本文： | 周银行,林青川,郭洪波,邢世雄.基于点源~(133)Ba刻度~(131)I探测效率的面积加权法[J].核电子学与探测技术,2009,29(6). |
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| 作者姓名： | 周银行 林青川 郭洪波 邢世雄 |
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| 作者单位： | 中国工程物理研究院核物理与化学研究所,四川,绵阳,621900 |
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| 摘 要： | 介绍了利用~(133)Ba点源的γ能峰(与~(131)I的γ能量相近)通过面积加权法对NaI(Tl)探测器模拟刻度碘盒中的~(131)I探测效率的原理和方法.其模拟刻度结果与标准刻度方法效率(~(133)Ba和~(131)I碘盒标准源刻度探测效率)进行了比较,其相对误差分别为7.15%和1.34%.研究表明,~(133)Ba点源面积加权法刻度NaI(Tl)探测器对碘盒中的~(131)I探测效率是一种简便而可靠的方法.
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| 关 键 词： | NaI(Tl)探测器 碘盒 探测效率 |
The Calibration Method of ~(131)I Detecting Efficiecncy Based on Area Weight for ~(133)Ba Standard Point Source |
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| ZHOU Yin-hang,LIN Qing-chuan,GUO Hong-bo,XING Shi-xiong.The Calibration Method of ~(131)I Detecting Efficiecncy Based on Area Weight for ~(133)Ba Standard Point Source[J].Nuclear Electronics & Detection Technology,2009,29(6). |
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| Authors: | ZHOU Yin-hang LIN Qing-chuan GUO Hong-bo XING Shi-xiong |
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| Abstract: | The prindple and technique of the calibration of ~(131)I detecting effidecncy in Iodin-box based on area weight for ~(133)Ba standard point source is introduced. The calibration result is compared to the effi-decncy acquired by standard calibration menthod, the relative errors are 7.15% and 1.34%. The results shows it is a simple and credible method that using ~(133)Ba standard point source calibrate the ~(131)I detecting efficiecncy in Iodin box based on area weight method. |
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| Keywords: | ~(131)I ~(133)Ba NaI(Tl) detector Iodin box ~(131)I ~(133)Ba Detecting efficiency |
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