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Title: Cherenkov detector analysis for implosions with multiple nuclear reactions

Abstract

Nuclear reactions that produce γ rays occur in inertial fusion implosions and are commonly measured with Cherenkov detectors. Typically a detector is primarily sensitive to a single reaction, but in some implosions, multiple fusion reactions can occur and are combined in the data. Here we discuss an analysis technique using multiple thresholded detectors to reproduce the individual burn histories from reactions like DT and HT fusion, which is applicable to separated-reactant mix experiments. Finally, requirements for this technique and resulting analysis uncertainties are quantified using synthetic data.

Authors:
ORCiD logo [1];  [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2]
+ Show Author Affiliations
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Atomic Weapons Establishment (AWE), Reading (United Kingdom). Plasma Physics Dept.
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE; LANL Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1483532
Alternate Identifier(s):
OSTI ID: 1459748
Report Number(s):
LA-UR-18-23811
Journal ID: ISSN 0034-6748
Grant/Contract Number:  
AC52-06NA52396
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; Cherenkov detectors; data analysis; nuclear reactions and processes; threshold energy; regression analysis; gamma rays; gamma spectra; nuclear fusion

Citation Formats

Zylstra, A. B., Herrmann, H. W., Kim, Y. H., Meaney, K., Geppert-Kleinrath, H., Schmitt, M. J., Hoffman, N. M., Leatherland, A., and Gales, S. Cherenkov detector analysis for implosions with multiple nuclear reactions. United States: N. p., 2018. Web. doi:10.1063/1.5038901.
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Zylstra, A. B., Herrmann, H. W., Kim, Y. H., Meaney, K., Geppert-Kleinrath, H., Schmitt, M. J., Hoffman, N. M., Leatherland, A., & Gales, S. Cherenkov detector analysis for implosions with multiple nuclear reactions. United States. https://doi.org/10.1063/1.5038901
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Zylstra, A. B., Herrmann, H. W., Kim, Y. H., Meaney, K., Geppert-Kleinrath, H., Schmitt, M. J., Hoffman, N. M., Leatherland, A., and Gales, S. Wed . "Cherenkov detector analysis for implosions with multiple nuclear reactions". United States. https://doi.org/10.1063/1.5038901. https://www.osti.gov/servlets/purl/1483532.
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@article{osti_1483532,
title = {Cherenkov detector analysis for implosions with multiple nuclear reactions},
author = {Zylstra, A. B. and Herrmann, H. W. and Kim, Y. H. and Meaney, K. and Geppert-Kleinrath, H. and Schmitt, M. J. and Hoffman, N. M. and Leatherland, A. and Gales, S.},
abstractNote = {Nuclear reactions that produce γ rays occur in inertial fusion implosions and are commonly measured with Cherenkov detectors. Typically a detector is primarily sensitive to a single reaction, but in some implosions, multiple fusion reactions can occur and are combined in the data. Here we discuss an analysis technique using multiple thresholded detectors to reproduce the individual burn histories from reactions like DT and HT fusion, which is applicable to separated-reactant mix experiments. Finally, requirements for this technique and resulting analysis uncertainties are quantified using synthetic data.},
doi = {10.1063/1.5038901},
journal = {Review of Scientific Instruments},
number = 10,
volume = 89,
place = {United States},
year = {Wed Jul 11 00:00:00 EDT 2018},
month = {Wed Jul 11 00:00:00 EDT 2018}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1063/1.5038901
Copyright Statement
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Citation Metrics:
Cited by: 3 works
Citation information provided by
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Figures / Tables:

FIG. 1 FIG. 1: Synthetic voltage signals for GCD-1 (dotted) and GCD-3 (dashed), showing contributions from HT (blue), DT (red), and the total (black).
All figures and tables (12 total)
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Works referenced in this record:

Progress towards ignition on the National Ignition Facility
journal, July 2013

  • Edwards, M. J.; Patel, P. K.; Lindl, J. D.
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journal, April 2014

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journal, September 2002

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journal, May 2017

  • Zylstra, A. B.; Herrmann, H. W.; Kim, Y. H.
  • Review of Scientific Instruments, Vol. 88, Issue 5
  • DOI: 10.1063/1.4983923

The National Ignition Facility: enabling fusion ignition for the 21st century
journal, November 2004

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    Works referencing / citing this record:

    Improved calibration of the OMEGA gas Cherenkov detector
    journal, December 2019

    • Zylstra, A. B.; Herrmann, H. W.; Kim, Y. H.
    • Review of Scientific Instruments, Vol. 90, Issue 12
    • DOI: 10.1063/1.5128765

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

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      Figures / Tables found in this record:

      FIG. 1 (p. 3)figure
      FIG. 2 (p. 3)figure
      TABLE I (p. 3)table
      FIG. 3 (p. 4)figure
      FIG. 4 (p. 4)figure
      FIG. 5 (p. 4)figure
      FIG. 6 (p. 5)figure
      FIG. 7 (p. 5)figure
      FIG. 8 (p. 5)figure
      FIG. 10 (p. 6)figure
      FIG. 9 (p. 6)figure
      TABLE II (p. 6)table
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