Development of a predictive capability of short-pulse laser-driven broadband x-ray radiography
Development of a predictive capability of short-pulse laser-driven broadband x-ray radiography
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短脉冲激光驱动宽带 X 射线照相预测能力的发展
DOI：
10.1088/1361-6587/ab8413
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发表时间：
2020
影响因子：
2.2
通讯作者：
Williams, Gerald J
中科院分区：
文献类型：
--
作者：
Sawada, Hiroshi;Salinas, Christopher M;Beg, Farhat N;Chen, Hui;Link, Anthony J;McLean, Harry S;Patel, Pravesh K;Ping, Yuan;Williams, Gerald J
高强度短脉冲激光与固体金属靶相互作用产生宽带硬X射线，可用于X射线照相的各种应用。在这里，实验基准的数值模拟短脉冲激光驱动的宽带x射线照相。角依赖的X射线光谱首先计算的混合粒子在细胞的代码，大规模等离子体（LSP），使用快电子参数推断从测量的韧致辐射信号的分析。随后，在使用蒙特卡罗代码、粒子和重离子传输代码系统（PHITS）的光子传输计算中使用在射线照相方向上计算的X射线光谱，以模拟包括建模的3D测试对象、X射线衰减滤波器和图像板检测器的射线照相图像。将模拟的射线照相图像与在内华达州里诺大学使用50 TW Leopard短脉冲激光的实验中获得的测量值进行比较。结果表明，模拟再现实验图像以及三种不同的衰减过滤器（塑料，铝，黄铜），而一维传输曲线的塑料和铝过滤器定量良好的协议。在这项工作中建立的建模方法可以被用来作为一个预测工具来模拟复杂的三维固体物体在任何任意的角度位置的射线照相图像或优化实验组件，如源光谱，X射线衰减过滤器和检测器类型取决于射线照相对象，而不进行射线照相实验。
High intensity, short-pulse laser interaction with a solid metal target produces broadband hard x-rays potentially for various applications of x-ray radiography. Here experimental benchmarking of numerical modelling for short-pulse laser-driven broadband x-ray radiography is presented. Angular dependent x-ray spectra are first calculated with a hybrid particle-in-cell code, Large Scale Plasma (LSP), using fast electron parameters inferred from an analysis of measured bremsstrahlung signals. Subsequently, a calculated x-ray spectrum in the direction of radiography is used in photon transport calculations using a Monte Carlo code, Particle and Heavy Ion Transport code System (PHITS), to simulate a radiographic image including a modelled 3D test object, an x-ray attenuation filter and an image plate detector. Simulated radiographic images are compared with measurements obtained in an experiment using a 50-TW Leopard short-pulse laser at the University of Nevada Reno. Results show that simulations reproduce the experimental images well for three different attenuation filters (plastic, aluminium, and brass), while 1D transmission profiles for the plastic and aluminium filters are quantitatively in good agreement. The modelling approach established in this work could be used as a predictive tool to simulate radiographic images of complex 3D solid objects at any arbitrary angular position or to optimize experimental components such as the source spectrum, x-ray attenuation filters and a detector type depending on a radiographic object without carrying out radiographic experiments.
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影响因子：
4.8
作者：
C. Armstrong;C. Brenner;C. Jones;D. Rusby;Z. Davidson;Y. Zhang;J. Wragg;S. Richards;C. Spindloe
通讯作者：
C. Armstrong;C. Brenner;C. Jones;D. Rusby;Z. Davidson;Y. Zhang;J. Wragg;S. Richards;C. Spindloe
使用 10 皮秒高强度激光驱动器对高密度物体进行脉冲 X 射线成像
DOI：
--
发表时间：
2016
期刊：
Security + Defence
影响因子：
--
作者：
D. Rusby;C. Brenner;C. Armstrong;L. Wilson;R. Clarke;A. Alejo;H. Ahmed;N. M. H. Butler;D. Haddock;A. Higginson;A. Mcclymont;S. R. Mirfayzi;C. Murphy;M. Notley;P. Oliver;R. Allott;C. Hernandez;Satyabrata Kar;Paul McKenna;D. Neely
通讯作者：
D. Neely
开发用于 1 MA z 箍缩联合实验的 50 TW 激光器
DOI：
--
发表时间：
2010
期刊：
影响因子：
--
作者：
P. Wiewior;V. Ivanov;O. Chalyy
通讯作者：
O. Chalyy
影响因子：
1.5
作者：
R. Clarke;D. Neely;R. Edwards;P. Wright;K. Ledingham;R. Heathcote;P. McKenna;C. Danson;P. Brummitt;J. Collier;P. Hatton;S. Hawkes;C. Hernandez-Gomez;P. Holligan;M. Hutchinson;A. Kidd;W. Lester;D. Neville;P. Norreys;D. Pepler;T. Winstone;R. Wyatt;B. Wyborn
通讯作者：
R. Clarke;D. Neely;R. Edwards;P. Wright;K. Ledingham;R. Heathcote;P. McKenna;C. Danson;P. Brummitt;J. Collier;P. Hatton;S. Hawkes;C. Hernandez-Gomez;P. Holligan;M. Hutchinson;A. Kidd;W. Lester;D. Neville;P. Norreys;D. Pepler;T. Winstone;R. Wyatt;B. Wyborn
开发用于诊断磁驱动圆柱形压缩物质的宽带 X 射线照相术
影响因子：
2.2
作者：
Sawada, H.;Daykin, T. S.;Hutchinson, T. M.;Bauer, B. S.;Ivanov, V. V.;Beg, F. N.;Chen, H.;Williams, G. J.;McLean, H. S.
通讯作者：
McLean, H. S.