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Title: A recoverable gas-cell diagnostic for the National Ignition Facility

Abstract

Here, the high-fluence neutron spectrum produced by the National Ignition Facility (NIF) provides an opportunity to measure the activation of materials by fast-spectrum neutrons. A new large-volume gas-cell diagnostic has been designed and qualified to measure the activation of gaseous substances at the NIF. This in-chamber diagnostic is recoverable, reusable and has been successfully fielded. Data from the qualification of the diagnostic have been used to benchmark an Monte Carlo N-Particle Transport Code simulation describing the downscattered neutron spectrum seen by the gas cell. We present early results from the use of this diagnostic to measure the activation of natXe and discuss future work to study the strength of interactions between plasma and nuclei.

Authors:
 [1]; ORCiD logo [1];  [1];  [2];  [2];  [1]; ORCiD logo [2];  [3];  [1];  [4]; ORCiD logo [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Univ. of California, Berkeley, CA (United States)
  3. Univ. of Oslo, Oslo (Norway)
  4. iThemba LABS, Somerset West (South Africa)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1342074
Report Number(s):
LLNL-JRNL-695435
Journal ID: ISSN 0034-6748; RSINAK; TRN: US1701701
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 87; Journal Issue: 11; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 70 PLASMA PHYSICS AND FUSION

Citation Formats

Ratkiewicz, A., Hopkins, L. Berzak, Bleuel, D. L., Bernstein, L. A., van Bibber, K., Cassata, W. S., Goldblum, B. L., Siem, S., Velsko, C. A., Wiedeking, M., and Yeamans, C. B. A recoverable gas-cell diagnostic for the National Ignition Facility. United States: N. p., 2016. Web. doi:10.1063/1.4961278.
Ratkiewicz, A., Hopkins, L. Berzak, Bleuel, D. L., Bernstein, L. A., van Bibber, K., Cassata, W. S., Goldblum, B. L., Siem, S., Velsko, C. A., Wiedeking, M., & Yeamans, C. B. A recoverable gas-cell diagnostic for the National Ignition Facility. United States. doi:10.1063/1.4961278.
Ratkiewicz, A., Hopkins, L. Berzak, Bleuel, D. L., Bernstein, L. A., van Bibber, K., Cassata, W. S., Goldblum, B. L., Siem, S., Velsko, C. A., Wiedeking, M., and Yeamans, C. B. Mon . "A recoverable gas-cell diagnostic for the National Ignition Facility". United States. doi:10.1063/1.4961278. https://www.osti.gov/servlets/purl/1342074.
@article{osti_1342074,
title = {A recoverable gas-cell diagnostic for the National Ignition Facility},
author = {Ratkiewicz, A. and Hopkins, L. Berzak and Bleuel, D. L. and Bernstein, L. A. and van Bibber, K. and Cassata, W. S. and Goldblum, B. L. and Siem, S. and Velsko, C. A. and Wiedeking, M. and Yeamans, C. B.},
abstractNote = {Here, the high-fluence neutron spectrum produced by the National Ignition Facility (NIF) provides an opportunity to measure the activation of materials by fast-spectrum neutrons. A new large-volume gas-cell diagnostic has been designed and qualified to measure the activation of gaseous substances at the NIF. This in-chamber diagnostic is recoverable, reusable and has been successfully fielded. Data from the qualification of the diagnostic have been used to benchmark an Monte Carlo N-Particle Transport Code simulation describing the downscattered neutron spectrum seen by the gas cell. We present early results from the use of this diagnostic to measure the activation of natXe and discuss future work to study the strength of interactions between plasma and nuclei.},
doi = {10.1063/1.4961278},
journal = {Review of Scientific Instruments},
number = 11,
volume = 87,
place = {United States},
year = {2016},
month = {8}
}

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Works referenced in this record:

The Radiochemical Analysis of Gaseous Samples (RAGS) apparatus for nuclear diagnostics at the National Ignition Facility (invited)
journal, October 2012

  • Shaughnessy, D. A.; Velsko, C. A.; Jedlovec, D. R.
  • Review of Scientific Instruments, Vol. 83, Issue 10
  • DOI: 10.1063/1.4742145

Method for Detection of Nuclear-Plasma Interactions in a 134Xe-Doped Exploding Pusher at the National Ignition Facility
journal, January 2016

  • Bleuel, Darren L.; Bernstein, Lee A.; Brand, Christopher A.
  • Plasma and Fusion Research, Vol. 11, Issue 0
  • DOI: 10.1585/pfr.11.3401075

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

Front Matter: Volume 8850
conference, October 2013


Neutron activation diagnostics at the National Ignition Facility (invited)
journal, October 2012

  • Bleuel, D. L.; Yeamans, C. B.; Bernstein, L. A.
  • Review of Scientific Instruments, Vol. 83, Issue 10
  • DOI: 10.1063/1.4733741

The National Ignition Facility: Status and Plans for Laser Fusion and High-Energy-Density Experimental Studies
journal, May 2003

  • Moses, Edward I.; Wuest, Craig R.
  • Fusion Science and Technology, Vol. 43, Issue 3
  • DOI: 10.13182/FST43-420

Observation of a Reflected Shock in an Indirectly Driven Spherical Implosion at the National Ignition Facility
journal, June 2014


    Works referencing / citing this record:

    A neutron activation spectrometer and neutronic experimental platform for the National Ignition Facility (invited)
    journal, September 2016

    • Yeamans, C. B.; Gharibyan, N.
    • Review of Scientific Instruments, Vol. 87, Issue 11
    • DOI: 10.1063/1.4962871