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Title: Neutron Time-of-Flight Measurements of Charged-Particle Energy Loss in Inertial Confinement Fusion Plasmas

Abstract

Neutron spectra from secondary 3H(d,n)α reactions produced by an implosion of a deuterium-gas capsule at the National Ignition Facility have been measured with order-of-magnitude improvements in statistics and resolution over past experiments. Furthermore, these new data and their sensitivity to the energy loss of fast tritons emitted from thermal 2H(d,p) 3H reactions enable the first statistically significant investigation of charged-particle stopping via the emitted neutron spectrum. Radiation-hydrodynamic simulations, constrained to match a number of observables from the implosion, were used to predict the neutron spectra while employing two different energy loss models. This analysis represents the first test of stopping models under inertial confinement fusion conditions, covering plasma temperatures of kBT ≈ 1–4 keV and particle densities of n ≈ (12–2) × 10 24 cm –3. Under these conditions, we find significant deviations of our data from a theory employing classical collisions whereas the theory including quantum diffraction agrees with our data.

Authors:
 [1];  [1];  [1];  [2];  [1];  [1];  [1];  [1];  [1];  [3];  [1];  [1];  [1];  [4];  [1];  [5];  [1];  [6];  [1];  [1] more »;  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1] « less
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Univ. of Warwick, Coventry (United Kingdom)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  6. Univ. of Rochester, Rochester, NY (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1571736
Report Number(s):
LLNL-JRNL-693537
Journal ID: ISSN 0031-9007; PRLTAO; 818980
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 123; Journal Issue: 16; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Sayre, D. B., Cerjan, C. J., Sepke, S. M., Gericke, D. O., Caggiano, J. A., Divol, L., Eckart, M. J., Graziani, F. R., Grim, G. P., Hansen, S. B., Hartouni, E. P., Hatarik, R., Hatchett, S. P., Hayes, A. K., Hopkins, L. F. Berzak, Johnson, M. Gatu, Khan, S. F., Knauer, J. P., Le Pape, S., MacKinnon, A. J., McNaney, J. M., Meezan, N. B., Rinderknecht, H. G., Shaughnessy, D. A., Stoeffl, W., Yeamans, C. B., Zylstra, A. B., and Schneider, D. H. Neutron Time-of-Flight Measurements of Charged-Particle Energy Loss in Inertial Confinement Fusion Plasmas. United States: N. p., 2019. Web. doi:10.1103/PhysRevLett.123.165001.
Sayre, D. B., Cerjan, C. J., Sepke, S. M., Gericke, D. O., Caggiano, J. A., Divol, L., Eckart, M. J., Graziani, F. R., Grim, G. P., Hansen, S. B., Hartouni, E. P., Hatarik, R., Hatchett, S. P., Hayes, A. K., Hopkins, L. F. Berzak, Johnson, M. Gatu, Khan, S. F., Knauer, J. P., Le Pape, S., MacKinnon, A. J., McNaney, J. M., Meezan, N. B., Rinderknecht, H. G., Shaughnessy, D. A., Stoeffl, W., Yeamans, C. B., Zylstra, A. B., & Schneider, D. H. Neutron Time-of-Flight Measurements of Charged-Particle Energy Loss in Inertial Confinement Fusion Plasmas. United States. doi:10.1103/PhysRevLett.123.165001.
Sayre, D. B., Cerjan, C. J., Sepke, S. M., Gericke, D. O., Caggiano, J. A., Divol, L., Eckart, M. J., Graziani, F. R., Grim, G. P., Hansen, S. B., Hartouni, E. P., Hatarik, R., Hatchett, S. P., Hayes, A. K., Hopkins, L. F. Berzak, Johnson, M. Gatu, Khan, S. F., Knauer, J. P., Le Pape, S., MacKinnon, A. J., McNaney, J. M., Meezan, N. B., Rinderknecht, H. G., Shaughnessy, D. A., Stoeffl, W., Yeamans, C. B., Zylstra, A. B., and Schneider, D. H. Thu . "Neutron Time-of-Flight Measurements of Charged-Particle Energy Loss in Inertial Confinement Fusion Plasmas". United States. doi:10.1103/PhysRevLett.123.165001.
@article{osti_1571736,
title = {Neutron Time-of-Flight Measurements of Charged-Particle Energy Loss in Inertial Confinement Fusion Plasmas},
author = {Sayre, D. B. and Cerjan, C. J. and Sepke, S. M. and Gericke, D. O. and Caggiano, J. A. and Divol, L. and Eckart, M. J. and Graziani, F. R. and Grim, G. P. and Hansen, S. B. and Hartouni, E. P. and Hatarik, R. and Hatchett, S. P. and Hayes, A. K. and Hopkins, L. F. Berzak and Johnson, M. Gatu and Khan, S. F. and Knauer, J. P. and Le Pape, S. and MacKinnon, A. J. and McNaney, J. M. and Meezan, N. B. and Rinderknecht, H. G. and Shaughnessy, D. A. and Stoeffl, W. and Yeamans, C. B. and Zylstra, A. B. and Schneider, D. H.},
abstractNote = {Neutron spectra from secondary 3H(d,n)α reactions produced by an implosion of a deuterium-gas capsule at the National Ignition Facility have been measured with order-of-magnitude improvements in statistics and resolution over past experiments. Furthermore, these new data and their sensitivity to the energy loss of fast tritons emitted from thermal 2H(d,p)3H reactions enable the first statistically significant investigation of charged-particle stopping via the emitted neutron spectrum. Radiation-hydrodynamic simulations, constrained to match a number of observables from the implosion, were used to predict the neutron spectra while employing two different energy loss models. This analysis represents the first test of stopping models under inertial confinement fusion conditions, covering plasma temperatures of kBT ≈ 1–4 keV and particle densities of n ≈ (12–2) × 1024 cm–3. Under these conditions, we find significant deviations of our data from a theory employing classical collisions whereas the theory including quantum diffraction agrees with our data.},
doi = {10.1103/PhysRevLett.123.165001},
journal = {Physical Review Letters},
number = 16,
volume = 123,
place = {United States},
year = {2019},
month = {10}
}

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Works referenced in this record:

Fuel gain exceeding unity in an inertially confined fusion implosion
journal, February 2014

  • Hurricane, O. A.; Callahan, D. A.; Casey, D. T.
  • Nature, Vol. 506, Issue 7488
  • DOI: 10.1038/nature13008

Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility
journal, July 2015


Thin Shell, High Velocity Inertial Confinement Fusion Implosions on the National Ignition Facility
journal, April 2015


Fusion Energy Output Greater than the Kinetic Energy of an Imploding Shell at the National Ignition Facility
journal, June 2018


Deuterium-Tritium Fuel Layer Formation for the National Ignition Facility
journal, January 2011

  • Kozioziemski, B. J.; Mapoles, E. R.; Sater, J. D.
  • Fusion Science and Technology, Vol. 59, Issue 1
  • DOI: 10.13182/FST10-3697

Indirectly Driven, High Convergence Inertial Confinement Fusion Implosions
journal, October 1994


Using nuclear data and Monte Carlo techniques to study areal density and mix in D2 implosions
journal, March 2005

  • Kurebayashi, S.; Frenje, J. A.; Séguin, F. H.
  • Physics of Plasmas, Vol. 12, Issue 3
  • DOI: 10.1063/1.1771656

Using multiple secondary fusion products to evaluate fuel ρR, electron temperature, and mix in deuterium-filled implosions at the NIF
journal, August 2015

  • Rinderknecht, H. G.; Rosenberg, M. J.; Zylstra, A. B.
  • Physics of Plasmas, Vol. 22, Issue 8
  • DOI: 10.1063/1.4928382

Neutron spectra from inertial confinement fusion targets for measurement of fuel areal density and charged particle stopping powers
journal, September 1987

  • Cable, M. D.; Hatchett, S. P.
  • Journal of Applied Physics, Vol. 62, Issue 6
  • DOI: 10.1063/1.339850

Study of Fuel-Pusher Mixing in Laser-Driven Implosions, Using Secondary Nuclear Fusion Reactions
journal, December 1987


Born random phase approximation for ion stopping in an arbitrarily degenerate electron fluid
journal, January 1985


Charged-particle stopping powers in inertial confinement fusion plasmas
journal, May 1993


Erratum: Charged-Particle Stopping Powers in Inertial Confinement Fusion Plasmas [Phys. Rev. Lett. 70 , 3059 (1993)]
journal, May 2015


Beam-plasma coupling effects on the stopping power of dense plasmas
journal, July 1999


Charged particle motion in a highly ionized plasma
journal, May 2005


Charged-particle acceleration and energy loss in laser-produced plasmas
journal, December 2000

  • Hicks, D. G.; Li, C. K.; Séguin, F. H.
  • Physics of Plasmas, Vol. 7, Issue 12
  • DOI: 10.1063/1.1320467

Measurements of Ion Stopping Around the Bragg Peak in High-Energy-Density Plasmas
journal, November 2015


Reaction-in-flight neutrons as a test of stopping power in degenerate plasmas
journal, August 2015

  • Hayes, A. C.; Jungman, Gerard; Schulz, A. E.
  • Physics of Plasmas, Vol. 22, Issue 8
  • DOI: 10.1063/1.4928104

High-density carbon ablator experiments on the National Ignition Facility
journal, May 2014

  • MacKinnon, A. J.; Meezan, N. B.; Ross, J. S.
  • Physics of Plasmas, Vol. 21, Issue 5
  • DOI: 10.1063/1.4876611

High-density carbon capsule experiments on the national ignition facility
journal, February 2015


Secondary-neutron-yield measurements by current-mode detectors
journal, January 2001

  • Glebov, V. Yu.; Meyerhofer, D. D.; Stoeckl, C.
  • Review of Scientific Instruments, Vol. 72, Issue 1
  • DOI: 10.1063/1.1320998

Understanding Fuel Magnetization and Mix Using Secondary Nuclear Reactions in Magneto-Inertial Fusion
journal, October 2014


Three-dimensional HYDRA simulations of National Ignition Facility targets
journal, May 2001

  • Marinak, M. M.; Kerbel, G. D.; Gentile, N. A.
  • Physics of Plasmas, Vol. 8, Issue 5
  • DOI: 10.1063/1.1356740

A New Neutron Time-of-Flight Detector to Measure the MeV Neutron Spectrum at the National Ignition Facility
journal, January 2014

  • Hatarik, Robert; Caggiano, Joseph A.; Glebov, Vladimir
  • Plasma and Fusion Research, Vol. 9, Issue 0
  • DOI: 10.1585/pfr.9.4404104

Improved formulas for fusion cross-sections and thermal reactivities
journal, April 1992


Analysis of the neutron time-of-flight spectra from inertial confinement fusion experiments
journal, November 2015

  • Hatarik, R.; Sayre, D. B.; Caggiano, J. A.
  • Journal of Applied Physics, Vol. 118, Issue 18
  • DOI: 10.1063/1.4935455

In-flight neutron spectra as an ICF diagnostic for implosion asymmetries
journal, February 2018

  • Cerjan, C.; Sayre, D. B.; Sepke, S. M.
  • Physics of Plasmas, Vol. 25, Issue 2
  • DOI: 10.1063/1.5018108

Enhanced NIF neutron activation diagnostics
journal, October 2012

  • Yeamans, C. B.; Bleuel, D. L.; Bernstein, L. A.
  • Review of Scientific Instruments, Vol. 83, Issue 10
  • DOI: 10.1063/1.4739230

Simulations of indirectly driven gas-filled capsules at the National Ignition Facility
journal, November 2014

  • Weber, S. V.; Casey, D. T.; Eder, D. C.
  • Physics of Plasmas, Vol. 21, Issue 11
  • DOI: 10.1063/1.4901598

Stopping power for strong beam–plasma coupling
journal, July 2002


Experimental discrimination of ion stopping models near the Bragg peak in highly ionized matter
journal, June 2017

  • Cayzac, W.; Frank, A.; Ortner, A.
  • Nature Communications, Vol. 8, Issue 1
  • DOI: 10.1038/ncomms15693

Experimental Validation of Low- Z Ion-Stopping Formalisms around the Bragg Peak in High-Energy-Density Plasmas
journal, January 2019