Ignition X-Ray Imager for Laser-Fusion Research at the National Ignition Facility

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X-ray imaging will be an important diagnostic tool for inertial confinement fusion (ICF) research at the National Ignition Facility (NIF). However, high neutron yields will make x-ray imaging much more difficult than it is at current smaller facilities. We analyze the feasibility and performance of an Ignition X-Ray Imager to be used on cryogenic DT implosions at NIF. The system is intended to provide time-integrated, broadband, moderate-energy x-ray core images of imploding ICF capsules. Highly magnified, spectrally-filtered images created using an array of pinholes placed close to the target will be projected onto a scintillator placed at the target chamber ... continued below

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5 p. (0.3 MB)

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Tommasini, R; Phillips, T W & Koch, J A September 27, 2005.

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Description

X-ray imaging will be an important diagnostic tool for inertial confinement fusion (ICF) research at the National Ignition Facility (NIF). However, high neutron yields will make x-ray imaging much more difficult than it is at current smaller facilities. We analyze the feasibility and performance of an Ignition X-Ray Imager to be used on cryogenic DT implosions at NIF. The system is intended to provide time-integrated, broadband, moderate-energy x-ray core images of imploding ICF capsules. Highly magnified, spectrally-filtered images created using an array of pinholes placed close to the target will be projected onto a scintillator placed at the target chamber wall. A telescope will be used to relay the scintillator emission to a distant optical detector that is time-gated in order to minimize backgrounds, in particular from neutrons. The system is optimized with respect to spatial-resolution, signal-to-background and signal-to-noise ratios.

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5 p. (0.3 MB)

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PDF-file: 5 pages; size: 0.3 Mbytes

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  • Presented at: 4th International Fusion Sciences & Applications, Biarritz, France, Sep 04 - Sep 09, 2005

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  • Report No.: UCRL-PROC-216152
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 883534
  • Archival Resource Key: ark:/67531/metadc876870

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • September 27, 2005

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • April 13, 2017, 6:16 p.m.

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Tommasini, R; Phillips, T W & Koch, J A. Ignition X-Ray Imager for Laser-Fusion Research at the National Ignition Facility, article, September 27, 2005; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc876870/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.