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Title: Analysis of the neutron time-of-flight spectra from inertial confinement fusion experiments

Abstract

For a long time, neutron time-of-flight diagnostics been used to characterize the neutron spectrum produced by inertial confinement fusion experiments. The primary diagnostic goals are to extract the d+t→n+α (DT) and d+d→n+³He (DD) neutron yields and peak widths, and the amount DT scattering relative to its unscattered yield, which is also known as the down-scatter ratio (DSR). These quantities are used to infer yield weighted plasma conditions, such as ion temperature (T ion) and cold fuel areal density. We explain such novel methodologies used to determine neutron yield, apparent T ion and DSR.

Authors:
 [1];  [1];  [1]; ORCiD logo [1];  [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [2];  [1]; ORCiD logo [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1240967
Alternate Identifier(s):
OSTI ID: 1225817; OSTI ID: 1341985
Report Number(s):
LLNL-JRNL-675169; LLNL-JRNL-686422
Journal ID: ISSN 0021-8979; JAPIAU
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 118; Journal Issue: 18; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUMM MECHANICS, GENERAL PHYSICS; 42 ENGINEERING; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Hatarik, R., Sayre, D. B., Caggiano, J. A., Phillips, T., Eckart, M. J., Bond, E. J., Cerjan, C., Grim, G. P., Hartouni, E. P., Knauer, J. P., Mcnaney, J. M., and Munro, D. H. Analysis of the neutron time-of-flight spectra from inertial confinement fusion experiments. United States: N. p., 2015. Web. doi:10.1063/1.4935455.
Hatarik, R., Sayre, D. B., Caggiano, J. A., Phillips, T., Eckart, M. J., Bond, E. J., Cerjan, C., Grim, G. P., Hartouni, E. P., Knauer, J. P., Mcnaney, J. M., & Munro, D. H. Analysis of the neutron time-of-flight spectra from inertial confinement fusion experiments. United States. doi:10.1063/1.4935455.
Hatarik, R., Sayre, D. B., Caggiano, J. A., Phillips, T., Eckart, M. J., Bond, E. J., Cerjan, C., Grim, G. P., Hartouni, E. P., Knauer, J. P., Mcnaney, J. M., and Munro, D. H. Thu . "Analysis of the neutron time-of-flight spectra from inertial confinement fusion experiments". United States. doi:10.1063/1.4935455. https://www.osti.gov/servlets/purl/1240967.
@article{osti_1240967,
title = {Analysis of the neutron time-of-flight spectra from inertial confinement fusion experiments},
author = {Hatarik, R. and Sayre, D. B. and Caggiano, J. A. and Phillips, T. and Eckart, M. J. and Bond, E. J. and Cerjan, C. and Grim, G. P. and Hartouni, E. P. and Knauer, J. P. and Mcnaney, J. M. and Munro, D. H.},
abstractNote = {For a long time, neutron time-of-flight diagnostics been used to characterize the neutron spectrum produced by inertial confinement fusion experiments. The primary diagnostic goals are to extract the d+t→n+α (DT) and d+d→n+³He (DD) neutron yields and peak widths, and the amount DT scattering relative to its unscattered yield, which is also known as the down-scatter ratio (DSR). These quantities are used to infer yield weighted plasma conditions, such as ion temperature (Tion) and cold fuel areal density. We explain such novel methodologies used to determine neutron yield, apparent Tion and DSR.},
doi = {10.1063/1.4935455},
journal = {Journal of Applied Physics},
number = 18,
volume = 118,
place = {United States},
year = {2015},
month = {11}
}

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