First Measurements of Deuterium-Tritium and Deuterium-Deuterium Fusion Reaction Yields in Ignition-Scalable Direct-Drive Implosions

The deuterium-tritium (D-T) and deuterium-deuterium neutron yield ratio in cryogenic inertial confinement fusion (ICF) experiments is used to examine multifluid effects, traditionally not included in ICF modeling. This ratio has been measured for ignition-scalable direct-drive cryogenic DT implosion...

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Main Authors: Forrest, C. J (Author), Radha, P. B (Author), Knauer, J. P (Author), Glebov, V. Yu (Author), Goncharov, V. N (Author), Regan, S. P (Author), Rosenberg, M. J. (Author), Sangster, T. C (Author), Shmayda, W. T (Author), Stoeckl, C. (Author), Gatu Johnson, Maria (Contributor)
Format: Article
Language:English
Published: American Physical Society, 2017-03-07T15:27:18Z.
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Online Access:Get fulltext
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100 1 0 |a Forrest, C. J.  |e author 
100 1 0 |a Gatu Johnson, Maria  |e contributor 
700 1 0 |a Radha, P. B.  |e author 
700 1 0 |a Knauer, J. P.  |e author 
700 1 0 |a Glebov, V. Yu.  |e author 
700 1 0 |a Goncharov, V. N.  |e author 
700 1 0 |a Regan, S. P.  |e author 
700 1 0 |a Rosenberg, M. J.  |e author 
700 1 0 |a Sangster, T. C.  |e author 
700 1 0 |a Shmayda, W. T.  |e author 
700 1 0 |a Stoeckl, C.  |e author 
700 1 0 |a Gatu Johnson, Maria  |e author 
245 0 0 |a First Measurements of Deuterium-Tritium and Deuterium-Deuterium Fusion Reaction Yields in Ignition-Scalable Direct-Drive Implosions 
260 |b American Physical Society,   |c 2017-03-07T15:27:18Z. 
856 |z Get fulltext  |u http://hdl.handle.net/1721.1/107203 
520 |a The deuterium-tritium (D-T) and deuterium-deuterium neutron yield ratio in cryogenic inertial confinement fusion (ICF) experiments is used to examine multifluid effects, traditionally not included in ICF modeling. This ratio has been measured for ignition-scalable direct-drive cryogenic DT implosions at the Omega Laser Facility [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] using a high-dynamic-range neutron time-of-flight spectrometer. The experimentally inferred yield ratio is consistent with both the calculated values of the nuclear reaction rates and the measured preshot target-fuel composition. These observations indicate that the physical mechanisms that have been proposed to alter the fuel composition, such as species separation of the hydrogen isotopes [D. T. Casey et al., Phys. Rev. Lett. 108, 075002 (2012)], are not significant during the period of peak neutron production in ignition-scalable cryogenic direct-drive DT implosions. 
546 |a en 
655 7 |a Article 
773 |t Physical Review Letters