Experimental comparison of various techniques for spot size measurement of high-energy X-ray sources

Experimental comparison of various techniques for spot size measurement of high-energy X-ray sources

In flash-radiography experiments, the quality of the acquired image strongly depends on the focal size of the X-ray source spot. A variety of techniques based on imaging of the pinhole, the slit and the rollbar are adopted to measure the focal spot size of the Dragon-I linear induction accelerator....

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Veröffentlicht in:中国物理C：英文版 2016-08 (8), p.136-141
1. Verfasser: 王毅 李勤 陈楠 程晋明 李成刚 李洪 龙全红 石金水 邓建军
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Sprache:eng
Schlagworte:
X射线源
光斑
实验比较
尺寸测量
成像技术
焦斑尺寸
直线感应加速器
高能量
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container_title 中国物理C：英文版
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creator 王毅 李勤 陈楠 程晋明 李成刚 李洪 龙全红 石金水 邓建军
description In flash-radiography experiments, the quality of the acquired image strongly depends on the focal size of the X-ray source spot. A variety of techniques based on imaging of the pinhole, the slit and the rollbar are adopted to measure the focal spot size of the Dragon-I linear induction accelerator. The image of the pinhole provides a two-dimensional distribution of the X-ray spot, while those of the slit and the rollbar give a line-spread distribution and an edge-spread distribution, respectively. The spot size characterized by the full-width at half-maximum and that characterized by the LANL definition are calculated for comparison.
doi_str_mv 10.1088/1674-1137/40/8/086205
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subjects X射线源
光斑
实验比较
尺寸测量
成像技术
焦斑尺寸
直线感应加速器
高能量
title Experimental comparison of various techniques for spot size measurement of high-energy X-ray sources
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