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Volume 24 Issue 06

May 2012

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(06): 1466-1470

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Wang Yi, Li Qin, Jiang Xiaoguo, et al. 衰减透射法测量高能X射线能谱[J]. High Power Laser and Particle Beams, 2012, 24: 1466-1470. doi: 10.3788/HPLPB20122406.1466

Citation:

Wang Yi, Li Qin, Jiang Xiaoguo, et al. 衰减透射法测量高能X射线能谱[J]. High Power Laser and Particle Beams, 2012, 24: 1466-1470. doi: 10.3788/HPLPB20122406.1466

Wang Yi, Li Qin, Jiang Xiaoguo, et al. 衰减透射法测量高能X射线能谱[J]. High Power Laser and Particle Beams, 2012, 24: 1466-1470. doi: 10.3788/HPLPB20122406.1466

Citation:

Wang Yi, Li Qin, Jiang Xiaoguo, et al. 衰减透射法测量高能X射线能谱[J]. High Power Laser and Particle Beams, 2012, 24: 1466-1470. doi: 10.3788/HPLPB20122406.1466

衰减透射法测量高能X射线能谱

doi: 10.3788/HPLPB20122406.1466

1.
Institute of Fluid Physics,CAEP,P.O.Box 919-106,Mianyang 621900,China

Received Date: 2011-10-10
Rev Recd Date: 2012-01-16
Publish Date: 2012-06-15

Abstract

研究了基于衰减透射原理的高能X射线能谱测量与重建。利用蒙特卡罗方法对神龙一号直线感应加速器的X射线源穿过不同厚度铝时的衰减透射过程进行模拟实验。解谱方法采用迭代扰动法，对不同的初始能谱估计和测量噪声水平条件下的能谱重建进行计算分析。结果表明:实验测量不包含噪声时，选择合适的初始能谱可以获得比较准确的能谱重建结果；在实验测量数据包含5.0%高斯随机噪声情况下，X射线能谱重建计算结果仍比较稳定，与真实值偏差相对较小。
- high-energy x-ray,
- energy spectrum reconstruction,
- attenuated transmission,
- linear induction accelerator,
- monte carlo method

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

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