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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]
  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.
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. doi:10.1063/1.5038901.
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. doi:10.1063/1.5038901. https://www.osti.gov/servlets/purl/1483532.
@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 = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

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).

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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.
  • Physics of Plasmas, Vol. 20, Issue 7
  • DOI: 10.1063/1.4816115

Development of the CD Symcap platform to study gas-shell mix in implosions at the National Ignition Facility
journal, September 2014

  • Casey, D. T.; Smalyuk, V. A.; Tipton, R. E.
  • Physics of Plasmas, Vol. 21, Issue 9
  • DOI: 10.1063/1.4894215

Extended performance gas Cherenkov detector for gamma-ray detection in high-energy density experiments
journal, November 2014

  • Herrmann, H. W.; Kim, Y. H.; Young, C. S.
  • Review of Scientific Instruments, Vol. 85, Issue 11
  • DOI: 10.1063/1.4892553

Atomic mix in directly driven inertial confinement implosions
journal, November 2011

  • Wilson, D. C.; Ebey, P. S.; Sangster, T. C.
  • Physics of Plasmas, Vol. 18, Issue 11
  • DOI: 10.1063/1.3656962

Development and characterization of sub-100 ps photomultiplier tubes
journal, October 2010

  • Horsfield, C. J.; Rubery, M. S.; Mack, J. M.
  • Review of Scientific Instruments, Vol. 81, Issue 10
  • DOI: 10.1063/1.3475718

Fusion neutrons from the gas–pusher interface in deuterated-shell inertial confinement fusion implosions
journal, March 1998

  • Chrien, R. E.; Hoffman, N. M.; Colvin, J. D.
  • Physics of Plasmas, Vol. 5, Issue 3
  • DOI: 10.1063/1.872761

Measurements of an Ablator-Gas Atomic Mix in Indirectly Driven Implosions at the National Ignition Facility
journal, January 2014


Effects of Fuel-Shell Mix upon Direct-Drive, Spherical Implosions on OMEGA
journal, September 2002


Simultaneous measurement of the HT and DT fusion burn histories in inertial fusion implosions
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