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Title: Reconstruction of 2D x-ray radiographs at the National Ignition Facility using pinhole tomography (invited)

Abstract

Two-dimensional radiographs of imploding fusion capsules are obtained at the National Ignition Facility by projection through a pinhole array onto a time-gated framing camera. Parallax among images in the image array makes it possible to distinguish contributions from the capsule and from the backlighter, permitting correction of backlighter non-uniformities within the capsule radiograph. Furthermore, precise determination of the imaging system geometry and implosion velocity enables combination of multiple images to reduce signal-to-noise and discover new capsule features.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
Publication Date:
OSTI Identifier:
22308644
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 85; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CAMERAS; CAPSULES; CORRECTIONS; GEOMETRY; IMAGES; IMPLOSIONS; SIGNAL-TO-NOISE RATIO; TOMOGRAPHY; US NATIONAL IGNITION FACILITY; X-RAY RADIOGRAPHY

Citation Formats

Field, J. E., E-mail: field9@llnl.gov, Rygg, J. R., Barrios, M. A., Benedetti, L. R., Döppner, T., Izumi, N., Jones, O., Khan, S. F., Ma, T., Nagel, S. R., Pak, A., Tommasini, R., Bradley, D. K., and Town, R. P. J. Reconstruction of 2D x-ray radiographs at the National Ignition Facility using pinhole tomography (invited). United States: N. p., 2014. Web. doi:10.1063/1.4890395.
Field, J. E., E-mail: field9@llnl.gov, Rygg, J. R., Barrios, M. A., Benedetti, L. R., Döppner, T., Izumi, N., Jones, O., Khan, S. F., Ma, T., Nagel, S. R., Pak, A., Tommasini, R., Bradley, D. K., & Town, R. P. J. Reconstruction of 2D x-ray radiographs at the National Ignition Facility using pinhole tomography (invited). United States. https://doi.org/10.1063/1.4890395
Field, J. E., E-mail: field9@llnl.gov, Rygg, J. R., Barrios, M. A., Benedetti, L. R., Döppner, T., Izumi, N., Jones, O., Khan, S. F., Ma, T., Nagel, S. R., Pak, A., Tommasini, R., Bradley, D. K., and Town, R. P. J. 2014. "Reconstruction of 2D x-ray radiographs at the National Ignition Facility using pinhole tomography (invited)". United States. https://doi.org/10.1063/1.4890395.
@article{osti_22308644,
title = {Reconstruction of 2D x-ray radiographs at the National Ignition Facility using pinhole tomography (invited)},
author = {Field, J. E., E-mail: field9@llnl.gov and Rygg, J. R. and Barrios, M. A. and Benedetti, L. R. and Döppner, T. and Izumi, N. and Jones, O. and Khan, S. F. and Ma, T. and Nagel, S. R. and Pak, A. and Tommasini, R. and Bradley, D. K. and Town, R. P. J.},
abstractNote = {Two-dimensional radiographs of imploding fusion capsules are obtained at the National Ignition Facility by projection through a pinhole array onto a time-gated framing camera. Parallax among images in the image array makes it possible to distinguish contributions from the capsule and from the backlighter, permitting correction of backlighter non-uniformities within the capsule radiograph. Furthermore, precise determination of the imaging system geometry and implosion velocity enables combination of multiple images to reduce signal-to-noise and discover new capsule features.},
doi = {10.1063/1.4890395},
url = {https://www.osti.gov/biblio/22308644}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 11,
volume = 85,
place = {United States},
year = {Sat Nov 15 00:00:00 EST 2014},
month = {Sat Nov 15 00:00:00 EST 2014}
}

Works referenced in this record:

Enhanced Delamination of Ultrathin Free-Standing Polymer Films via Self-Limiting Surface Modification
journal, April 2014


Gated x-ray detector for the National Ignition Facility
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Radiation tolerance of ultra-thin Formvar films
journal, August 2012


2D X-Ray Radiography of Imploding Capsules at the National Ignition Facility
journal, May 2014


IR Absorptive Properties of Plastic Materials Used in ICF Capsules
journal, March 2004


Improvements to Formvar Tent Fabrication Using the Meniscus Coater
journal, January 2011


NIF Ignition Campaign Target Performance and Requirements: Status May 2012
journal, March 2013


NIF Ignition Campaign Target Performance and Requirements: Status May 2012
journal, April 2013


Works referencing / citing this record: