Evidence for Stratification of Deuterium-Tritium Fuel in Inertial Confinement Fusion Implosions
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Casey-2012-Evidence for Stratification of Deuterium.pdf
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Author(s)
Casey, Daniel Thomas
Frenje, Johan A.
Gatu Johnson, Maria
Manuel, Mario J.-E.
Rinderknecht, Hans George
Sinenian, Nareg
Seguin, Fredrick Hampton
Petrasso, Richard D.
Radha, P. B.
Delettrez, J. A.
Date Issued
February 2012
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Casey, D. et al. “Evidence for Stratification of Deuterium-Tritium Fuel in Inertial Confinement Fusion Implosions.” Physical Review Letters 108.7 (2012). © 2012 American Physical Society
Version
Final published version
Abstract
Measurements of the D(d,p)T (dd) and T(t,2n)[superscript 4]He (tt) reaction yields have been compared with those of the D(t,n)[superscript 4]He (dt) reaction yield, using deuterium-tritium gas-filled inertial confinement fusion capsule implosions. In these experiments, carried out on the OMEGA laser, absolute spectral measurements of dd protons and tt neutrons were obtained. From these measurements, it was concluded that the dd yield is anomalously low and the tt yield is anomalously high relative to the dt yield, an observation that we conjecture to be caused by a stratification of the fuel in the implosion core. This effect may be present in ignition experiments planned on the National Ignition Facility.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Massachusetts Institute of Technology. School of Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.108.075002
