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01553 am a22002053u 4500 |
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|a Frenje, Johan A.
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|a Massachusetts Institute of Technology. Plasma Science and Fusion Center
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|a Frenje, Johan A.
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|a Gatu Johnson, Maria
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|a Gatu Johnson, Maria
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|a Measurement of the T+T Neutron Spectrum Using the National Ignition Facility
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|b American Physical Society,
|c 2013-10-16T13:09:09Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/81399
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|a Neutron time-of-flight spectra from inertial confinement fusion experiments with tritium-filled targets have been measured at the National Ignition Facility. These spectra represent a significant improvement in energy resolution and statistics over previous measurements, and afford the first definitive observation of a peak resulting from sequential decay through the ground state of [superscript 5]He at low reaction energies E[subscript c.m.]≲100 keV. To describe the spectrum, we have developed an R-matrix model that accounts for interferences from fermion symmetry and intermediate states, and show these effects to be non-negligible. We also find the spectrum can be described by sequential decay through ℓ=1 states in [superscript 5]He, which differs from previous interpretations.
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|a Lawrence Livermore National Security (Contract DE-AC52-07NA27344)
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|a en_US
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|a Article
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|t Physical Review Letters
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