| 高能脉冲X射线能谱测量 |
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| 引用本文： | 苏兆锋,杨海亮,邱爱慈,孙剑锋,丛培天,王亮平,雷天时,韩娟娟.高能脉冲X射线能谱测量[J].物理学报,2010,59(11):7729-7735. |
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| 作者姓名： | 苏兆锋 杨海亮 邱爱慈 孙剑锋 丛培天 王亮平 雷天时 韩娟娟 |
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| 作者单位： | 西北核技术研究所,西安 710024 |
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| 基金项目： | 国家自然科学基金(批准号: 10775112),国防科技预研基金(批准号:NYS311060205)资助的课题. |
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| 摘 要： | 给出了高能脉冲X射线能谱测量的基本原理及实验结果.采用Monte-Carlo程序计算了高能光子在能谱仪中每个灵敏单元内的能量沉积,利用能谱仪测量了"强光Ⅰ号"加速器产生的高能脉冲X射线不同衰减程度下的强度,求解得到了具有时间分辨的高能脉冲X射线能谱,时间跨度57ns,时间步长5ns,光子的最高能量3.0MeV,平均能量1.04MeV,能量在0.2—0.9MeV之间的光子数目最多,占46.5%.也利用二极管的电压电流波形理论计算了光子的能谱,并与利用能谱仪测得的能谱进行了比较,两种方法所得结果基本一致.
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| 关 键 词： | 能谱 高能脉冲X射线 时间分辨 反卷积 |
| 收稿时间： | 2008-12-11 |
| 修稿时间： | 2/5/2010 12:00:00 AM |
Measurements of energy spectra for high energy pulsed X-ray |
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| Su Zhao-Feng,Yang Hai-Liang,Qiu Ai-Ci,Sun Jian-Feng,Cong Pei-Tian,Wang Liang-Ping,Lei Tian-Shi,Han Juan-Juan.Measurements of energy spectra for high energy pulsed X-ray[J].Acta Physica Sinica,2010,59(11):7729-7735. |
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| Authors: | Su Zhao-Feng Yang Hai-Liang Qiu Ai-Ci Sun Jian-Feng Cong Pei-Tian Wang Liang-Ping Lei Tian-Shi Han Juan-Juan |
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| Institution: | Northwest Institute of Nuclear Technology, Xi'an 710024, China;Northwest Institute of Nuclear Technology, Xi'an 710024, China;Northwest Institute of Nuclear Technology, Xi'an 710024, China;Northwest Institute of Nuclear Technology, Xi'an 710024, China;Northwest Institute of Nuclear Technology, Xi'an 710024, China;Northwest Institute of Nuclear Technology, Xi'an 710024, China;Northwest Institute of Nuclear Technology, Xi'an 710024, China;Northwest Institute of Nuclear Technology, Xi'an 710024, China |
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| Abstract: | The basic principle and the experimental results of measuring energy spectra of high energy pulsed X-ray are reported. The Monte-Carlo code is developed to calculate the energy deposition of high energy photons in each sensitive cell of the energy spectrometer. The intensity of high energy pulsed X-ray created on the Qiangguang-Ⅰ accelerator is measured by using the energy spectrometer. According to the deposited energy and the integral data, the time-resolved high pulsed x-ray energy spectrum is obtained. By using the voltage waveform and the current waveform of the diode, the energy spectrum is calculated in details. The results are in agree with the measured values from the experimental energy spectrum. |
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| Keywords: | energy spectrum high energy pulsed X-ray time-resolved deconvolution |
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