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层析γ扫描技术效率矩阵计算模型分析与修正

Yu CHENG,Wen-qing WENG,Yun-fei BAI,De-zhong WANG,Yong-liang YANG,Yong ZHANG

Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University（2008）

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Abstract
在对层析γ扫描技术效率矩阵进行刻度,特别是采用体源刻度时,传统实验刻度方法实现较为困难,采用蒙特卡罗方法刻度需要较高精度的探测器尺寸.为此通过对刻度空间不同位置的探测效率与计算效率相似比较,分析并修正探测器模型,使计算值与实验值相对误差小于5%,得到较为精确的刻度模型.研究结果为进一步刻度分析奠定了理论和计算模型基础.
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Key words
Efficiency matrix,Monte Carlo method,Scale model,Tomographic gamma scanning
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