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Title: Development of a predictive capability of short-pulse laser-driven broadband x-ray radiography

Abstract

High intensity, short-pulse laser interaction with a solid metal target produces broadband hard x-rays potentially for various applications of x-ray radiography. In this work, 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 tomore » 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.« less

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2];  [3];  [3];  [3];  [3];  [3];  [3]
  1. Univ. of Nevada, Reno, NV (United States)
  2. Univ. of California, San Diego, CA (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
OSTI Identifier:
1819018
Report Number(s):
LLNL-JRNL-821831
Journal ID: ISSN 0741-3335; 1032708; TRN: US2214048
Grant/Contract Number:  
AC52-07NA27344; FG02-05ER54834; 1707357
Resource Type:
Accepted Manuscript
Journal Name:
Plasma Physics and Controlled Fusion
Additional Journal Information:
Journal Volume: 62; Journal Issue: 6; Journal ID: ISSN 0741-3335
Publisher:
IOP Science
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; broadband x-ray radiography; short-pulse laser-produced X rays; hybrid particle-in-cell; Monte Carlo simulations

Citation Formats

Sawada, Hiroshi, Salinas, Christopher M., Beg, Farhat N., Chen, Hui, Link, Anthony J., McLean, Harry S., Patel, Pravesh K., Ping, Yuan, and Williams, Gerald J. Development of a predictive capability of short-pulse laser-driven broadband x-ray radiography. United States: N. p., 2020. Web. doi:10.1088/1361-6587/ab8413.
Sawada, Hiroshi, Salinas, Christopher M., Beg, Farhat N., Chen, Hui, Link, Anthony J., McLean, Harry S., Patel, Pravesh K., Ping, Yuan, & Williams, Gerald J. Development of a predictive capability of short-pulse laser-driven broadband x-ray radiography. United States. https://doi.org/10.1088/1361-6587/ab8413
Sawada, Hiroshi, Salinas, Christopher M., Beg, Farhat N., Chen, Hui, Link, Anthony J., McLean, Harry S., Patel, Pravesh K., Ping, Yuan, and Williams, Gerald J. Tue . "Development of a predictive capability of short-pulse laser-driven broadband x-ray radiography". United States. https://doi.org/10.1088/1361-6587/ab8413. https://www.osti.gov/servlets/purl/1819018.
@article{osti_1819018,
title = {Development of a predictive capability of short-pulse laser-driven broadband x-ray radiography},
author = {Sawada, Hiroshi and Salinas, Christopher M. and Beg, Farhat N. and Chen, Hui and Link, Anthony J. and McLean, Harry S. and Patel, Pravesh K. and Ping, Yuan and Williams, Gerald J.},
abstractNote = {High intensity, short-pulse laser interaction with a solid metal target produces broadband hard x-rays potentially for various applications of x-ray radiography. In this work, 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.},
doi = {10.1088/1361-6587/ab8413},
journal = {Plasma Physics and Controlled Fusion},
number = 6,
volume = 62,
place = {United States},
year = {Tue Apr 21 00:00:00 EDT 2020},
month = {Tue Apr 21 00:00:00 EDT 2020}
}

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