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Title: Aperture design for the third neutron and first gamma-ray imaging systems for the National Ignition Facility

Abstract

The current construction of a new nuclear-imaging view at the National Ignition Facility will provide a third line of sight for hotspot and cold fuel imaging and the first dedicated line of sight for 4.4-MeV γ-ray imaging of the remaining carbon ablator. To minimize the effort required to hold and align apertures inside the vacuum chamber, the apertures for the two lines of sight will be contained in the same array. We discuss the system requirements for neutron and γ-ray imaging and the resulting aperture array design.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [2];  [1];  [1];  [1];  [1];  [2];  [1];  [1]
+ Show Author Affiliations
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1525725
Report Number(s):
LLNL-JRNL-774860
Journal ID: ISSN 0034-6748; 966930
Grant/Contract Number:  
AC52-07NA27344; AC52-06NA25396
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:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; gamma rays; neutron imaging; X-rays

Citation Formats

Fatherley, V. E., Fittinghoff, D. N., Hibbard, R. L., Jorgenson, H. J., Martinez, J. I., Oertel, J. A., Schmidt, D. W., Waltz, C. S., Wilde, C. H., and Volegov, P. L. Aperture design for the third neutron and first gamma-ray imaging systems for the National Ignition Facility. United States: N. p., 2018. Web. doi:10.1063/1.5039328.
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Fatherley, V. E., Fittinghoff, D. N., Hibbard, R. L., Jorgenson, H. J., Martinez, J. I., Oertel, J. A., Schmidt, D. W., Waltz, C. S., Wilde, C. H., & Volegov, P. L. Aperture design for the third neutron and first gamma-ray imaging systems for the National Ignition Facility. United States. https://doi.org/10.1063/1.5039328
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Fatherley, V. E., Fittinghoff, D. N., Hibbard, R. L., Jorgenson, H. J., Martinez, J. I., Oertel, J. A., Schmidt, D. W., Waltz, C. S., Wilde, C. H., and Volegov, P. L. Wed . "Aperture design for the third neutron and first gamma-ray imaging systems for the National Ignition Facility". United States. https://doi.org/10.1063/1.5039328. https://www.osti.gov/servlets/purl/1525725.
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@article{osti_1525725,
title = {Aperture design for the third neutron and first gamma-ray imaging systems for the National Ignition Facility},
author = {Fatherley, V. E. and Fittinghoff, D. N. and Hibbard, R. L. and Jorgenson, H. J. and Martinez, J. I. and Oertel, J. A. and Schmidt, D. W. and Waltz, C. S. and Wilde, C. H. and Volegov, P. L.},
abstractNote = {The current construction of a new nuclear-imaging view at the National Ignition Facility will provide a third line of sight for hotspot and cold fuel imaging and the first dedicated line of sight for 4.4-MeV γ-ray imaging of the remaining carbon ablator. To minimize the effort required to hold and align apertures inside the vacuum chamber, the apertures for the two lines of sight will be contained in the same array. We discuss the system requirements for neutron and γ-ray imaging and the resulting aperture array design.},
doi = {10.1063/1.5039328},
journal = {Review of Scientific Instruments},
number = 10,
volume = 89,
place = {United States},
year = {Wed Oct 10 00:00:00 EDT 2018},
month = {Wed Oct 10 00:00:00 EDT 2018}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1063/1.5039328
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Citation Metrics:
Cited by: 6 works
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Figures / Tables:

Figure 1 Figure 1: Locations of recording systems for NIS3: (A) X-ray and neutron image plate detector, (B) Neutron image plate detector, (C) Neutron scintillator detector, (D) $γ$-ray scintillator detector.
All figures and tables (12 total)
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Works referenced in this record:

Review of the National Ignition Campaign 2009-2012
journal, February 2014

  • Lindl, John; Landen, Otto; Edwards, John
  • Physics of Plasmas, Vol. 21, Issue 2
  • DOI: 10.1063/1.4865400

The neutron imaging diagnostic at NIF (invited)
journal, October 2012

  • Merrill, F. E.; Bower, D.; Buckles, R.
  • Review of Scientific Instruments, Vol. 83, Issue 10
  • DOI: 10.1063/1.4739242

System design of the NIF Neutron Imaging System North Pole
conference, September 2017

  • Fatherley, Valerie E.; Ayers, Jay J.; Barker, David A.
  • Target Diagnostics Physics and Engineering for Inertial Confinement Fusion VI
  • DOI: 10.1117/12.2274365

Design of the polar neutron-imaging aperture for use at the National Ignition Facility
journal, August 2016

  • Fatherley, V. E.; Barker, D. A.; Fittinghoff, D. N.
  • Review of Scientific Instruments, Vol. 87, Issue 11
  • DOI: 10.1063/1.4960314

Design of the aperture array for neutron imaging from the north pole of the National Ignition Facility
conference, September 2016

  • Fatherley, V. E.; Barker, D. A.; Fittinghoff, D. N.
  • SPIE Optical Engineering + Applications, SPIE Proceedings
  • DOI: 10.1117/12.2238657

Combined neutron and x-ray imaging at the National Ignition Facility (invited)
journal, October 2016

  • Danly, C. R.; Christensen, K.; Fatherley, V. E.
  • Review of Scientific Instruments, Vol. 87, Issue 11
  • DOI: 10.1063/1.4962194

Demonstration of a time-integrated short line of sight neutron imaging system for inertial confinement fusion
journal, December 2015

  • Simpson, R.; Christensen, K.; Danly, C.
  • Review of Scientific Instruments, Vol. 86, Issue 12
  • DOI: 10.1063/1.4938543

A liquid VI scintillator cell for fast-gated neutron imaging
journal, October 2018

  • Geppert-Kleinrath, Verena; Freeman, Matthew S.; Hurlbut, Charles R.
  • Review of Scientific Instruments, Vol. 89, Issue 10
  • DOI: 10.1063/1.5039362
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    Works referencing / citing this record:

    Optimizing neutron imaging line of sight locations for maximizing sampling of the cold fuel density in inertial confinement fusion implosions at the National Ignition Facility
    journal, October 2018

    • Batha, S. H.; Volegov, P. L.; Fatherley, V. E.
    • Review of Scientific Instruments, Vol. 89, Issue 10
    • DOI: 10.1063/1.5038815

    Nuclear diagnostics for Inertial Confinement Fusion (ICF) plasmas
    journal, January 2020

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      Figures / Tables found in this record:

      Figure 1 (p. 4)figure
      TABLE I (p. 4)table
      Figure 2 (p. 5)figure
      Figure 3 (p. 5)figure
      TABLE II (p. 5)table
      Figure 4 (p. 6)figure
      Figure 5 (p. 6)figure
      TABLE III (p. 6)table
      TABLE IV (p. 6)table
      Figure 6 (p. 7)figure
      Figure 7 (p. 7)figure
      Figure 8 (p. 7)figure
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