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Title: Using multiple x-ray emission images of inertially confined implosions to identify spatial variations and estimate confinement volumes (invited)

Abstract

We describe two methods to analyze multiple x-ray images of a small, self-emitting object, and we apply these methods to the stagnating hotspots in inertial confinement fusion experiments. The first method, the common integrated profile, can be employed to assess and quantify spatial variations in opacity. It is both a simple assessment of consistency and a sophisticated measurement of variations in a region that is otherwise difficult to observe. Second, we present a method to estimate volumes of highly asymmetric objects using multiple images of x-ray emission. The method is based on image intensities and does not require any explicit assumption of symmetry

Authors:
ORCiD logo [1];  [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1545516
Alternate Identifier(s):
OSTI ID: 1465244; OSTI ID: 1548391
Report Number(s):
LLNL-JRNL-750950
Journal ID: ISSN 0034-6748
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 89; Journal Issue: 10; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Benedetti, Laura Robin, Bradley, D. K., Khan, S. F., Izumi, N., Ma, T., Nagel, S. R., and Pak, A. Using multiple x-ray emission images of inertially confined implosions to identify spatial variations and estimate confinement volumes (invited). United States: N. p., 2018. Web. doi:10.1063/1.5039381.
Benedetti, Laura Robin, Bradley, D. K., Khan, S. F., Izumi, N., Ma, T., Nagel, S. R., & Pak, A. Using multiple x-ray emission images of inertially confined implosions to identify spatial variations and estimate confinement volumes (invited). United States. doi:10.1063/1.5039381.
Benedetti, Laura Robin, Bradley, D. K., Khan, S. F., Izumi, N., Ma, T., Nagel, S. R., and Pak, A. Mon . "Using multiple x-ray emission images of inertially confined implosions to identify spatial variations and estimate confinement volumes (invited)". United States. doi:10.1063/1.5039381. https://www.osti.gov/servlets/purl/1545516.
@article{osti_1545516,
title = {Using multiple x-ray emission images of inertially confined implosions to identify spatial variations and estimate confinement volumes (invited)},
author = {Benedetti, Laura Robin and Bradley, D. K. and Khan, S. F. and Izumi, N. and Ma, T. and Nagel, S. R. and Pak, A.},
abstractNote = {We describe two methods to analyze multiple x-ray images of a small, self-emitting object, and we apply these methods to the stagnating hotspots in inertial confinement fusion experiments. The first method, the common integrated profile, can be employed to assess and quantify spatial variations in opacity. It is both a simple assessment of consistency and a sophisticated measurement of variations in a region that is otherwise difficult to observe. Second, we present a method to estimate volumes of highly asymmetric objects using multiple images of x-ray emission. The method is based on image intensities and does not require any explicit assumption of symmetry},
doi = {10.1063/1.5039381},
journal = {Review of Scientific Instruments},
number = 10,
volume = 89,
place = {United States},
year = {2018},
month = {8}
}

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Cited by: 1 work
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Works referenced in this record:

Metrics for long wavelength asymmetries in inertial confinement fusion implosions on the National Ignition Facility
journal, April 2014

  • Kritcher, A. L.; Town, R.; Bradley, D.
  • Physics of Plasmas, Vol. 21, Issue 4
  • DOI: 10.1063/1.4871718

Radiation hydrodynamics modeling of the highest compression inertial confinement fusion ignition experiment from the National Ignition Campaign
journal, February 2015

  • Clark, D. S.; Marinak, M. M.; Weber, C. R.
  • Physics of Plasmas, Vol. 22, Issue 2
  • DOI: 10.1063/1.4906897

Inertially confined fusion plasmas dominated by alpha-particle self-heating
journal, April 2016

  • Hurricane, O. A.; Callahan, D. A.; Casey, D. T.
  • Nature Physics, Vol. 12, Issue 8
  • DOI: 10.1038/nphys3720

Extracting core shape from x-ray images at the National Ignition Facility
journal, October 2012

  • Glenn, S. M.; Benedetti, L. R.; Bradley, D. K.
  • Review of Scientific Instruments, Vol. 83, Issue 10
  • DOI: 10.1063/1.4731743

Imaging of high-energy x-ray emission from cryogenic thermonuclear fuel implosions on the NIF
journal, October 2012

  • Ma, T.; Izumi, N.; Tommasini, R.
  • Review of Scientific Instruments, Vol. 83, Issue 10
  • DOI: 10.1063/1.4733313

Simplified model of pinhole imaging for quantifying systematic errors in image shape
journal, January 2017

  • Benedetti, Laura Robin; Izumi, N.; Khan, S. F.
  • Applied Optics, Vol. 56, Issue 31
  • DOI: 10.1364/ao.56.008719

Gated x-ray detector for the National Ignition Facility
journal, October 2006

  • Oertel, John A.; Aragonez, Robert; Archuleta, Tom
  • Review of Scientific Instruments, Vol. 77, Issue 10
  • DOI: 10.1063/1.2227439

Advances in x-ray framing cameras at the National Ignition Facility to improve quantitative precision in x-ray imaging
journal, February 2016

  • Benedetti, L. R.; Holder, J. P.; Perkins, M.
  • Review of Scientific Instruments, Vol. 87, Issue 2
  • DOI: 10.1063/1.4941754

Investigating high speed phenomena in laser plasma interactions using dilation x-ray imager (invited)
journal, November 2014

  • Nagel, S. R.; Hilsabeck, T. J.; Bell, P. M.
  • Review of Scientific Instruments, Vol. 85, Issue 11
  • DOI: 10.1063/1.4890396

Symmetry tuning for ignition capsules via the symcap technique
journal, May 2011

  • Kyrala, G. A.; Kline, J. L.; Dixit, S.
  • Physics of Plasmas, Vol. 18, Issue 5
  • DOI: 10.1063/1.3574504