Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Enhancement of high energy X-ray radiography using compound parabolic concentrator targets

Journal Article · · High Energy Density Physics
 [1];  [2];  [3];  [2];  [4];  [2];  [2];  [2];  [3];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [3];  [3];  [5];  [5] more »;  [5];  [2] « less
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Texas, Austin, TX (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Univ. of Texas, Austin, TX (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
  5. General Atomics, San Diego, CA (United States)
+ Show Author Affiliations
We report an increase in MeV energy bremsstrahlung x-ray production using compound parabolic concentrators (CPC) compared to flat solid targets during relativistic laser-plasma experiments on a 140 J, 150 fs laser system using an f/40 focusing optic. CPC enhanced targets show a > 3x increase in high energy x-ray production over planar foil targets. Furthermore, this enhancement in x-ray energy spectra shows a direct improvement in the radiography of an image quality indicator (IQI) object with a 20 g/cm2 areal density.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Grant/Contract Number:
AC52-07NA27344; NA0001808
OSTI ID:
1883450
Alternate ID(s):
OSTI ID: 1962234
Report Number(s):
LLNL-JRNL-818617; 1029209
Journal Information:
High Energy Density Physics, Journal Name: High Energy Density Physics Vol. 42; ISSN 1574-1818
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (20)

Evaluating laser-driven Bremsstrahlung radiation sources for imaging and analysis of nuclear waste packages journal November 2016
Ultra-intense laser interaction with nanostructured near-critical plasmas journal March 2018
High performance compact magnetic spectrometers for energetic ion and electron measurement in ultraintense short pulse laser solid interactions journal October 2008
Effect of plasma density scale length on the properties of bremsstrahlung x-ray sources created by picosecond laser pulses journal January 2009
High-resolution multi-MeV x-ray radiography using relativistic laser-solid interaction journal February 2011
Characterisation of a MeV Bremsstrahlung x-ray source produced from a high intensity laser for high areal density object radiography journal August 2013
High-energy differential-filtering photon spectrometer for ultraintense laser-matter interactions journal October 2018
X-ray analysis methods for sources from self-modulated laser wakefield acceleration driven by picosecond lasers journal March 2019
Experimental study of energy transfer in double shell implosions journal May 2019
Pushered single shell implosions for mix and radiation trapping studies using high-Z layers on National Ignition Facility journal July 2019
Enhanced brightness of a laser-driven x-ray and particle source by microstructured surfaces of silicon targets journal April 2020
Laser-driven x-ray and neutron source development for industrial applications of plasma accelerators journal November 2015
Enhancements in laser-generated hot-electron production via focusing cone targets at short pulse and high contrast journal May 2021
Order-of-magnitude increase in laser-target coupling at near-relativistic intensities using compound parabolic concentrators journal March 2021
Effects of front-surface target structures on properties of relativistic laser-plasma electrons journal January 2014
Plasma scale-length effects on electron energy spectra in high-irradiance laser plasmas journal April 2016
Absorption of ultra-intense laser pulses journal August 1992
Effect of the Plasma Density Scale Length on the Direction of Fast Electrons in Relativistic Laser-Solid Interactions journal February 2000
Enhancing Bremsstrahlung production from ultraintense laser-solid interactions with front surface structures journal October 2014
Enhanced laser–plasma interactions using non-imaging optical concentrator targets journal January 2020

Similar Records

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CPC
HEDS
Laser Bremsstrahlung
Radiography