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Measurements of the neutron emission spectra from spheres of N, O, W, /sup 235/U, /sup 238/U, and /sup 239/Pu, pulsed by 14-MeV neutrons

Technical Report ·
DOI:https://doi.org/10.2172/7316436· OSTI ID:7316436
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Inspired by new detector instrumentation that is insensitive to gamma-ray background and improved deuteron-beam bunching and sweeping of the ICT accelerator, we have measured the high-energy (2 less than E/sub n/ less than 15 MeV) neutron emission spectra from spherical targets of nitrogen, oxygen, tungsten, /sup 235/U, /sup 238/U, and /sup 239/Pu. The targets were pulsed at the center by a nominal 14-MeV neutron source at the LLL time-of-flight facility. The neutron source was obtained from the T(d,n)/sup 4/He reaction with a pulsed 400-keV deuteron beam, produced by the LLL ICT accelerator. Collimated scintillation detectors at 26/sup 0/ and 120/sup 0/ with respect to the deutron beam and at flight paths from 7.5-9.8 m recorded the neutron time-of-flight spectra.

Research Organization:
California Univ., Livermore (USA). Lawrence Livermore Lab.
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
7316436
Report Number(s):
UCID-17332
Country of Publication:
United States
Language:
English

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Related Subjects

651325 -- Nuclear Properties & Reactions
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651825 -- Nuclear Properties & Reactions
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652025* -- Nuclear Properties & Reactions
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
CRYOGENIC FLUIDS
ELEMENTS
EMISSION
ENERGY RANGE
FLUIDS
HADRON REACTIONS
METALS
MEV RANGE
MEV RANGE 10-100
NEUTRON EMISSION
NEUTRON REACTIONS
NEUTRON SPECTRA
NITROGEN
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OXYGEN
PLUTONIUM 239 TARGET
REFRACTORY METALS
SPECTRA
SPHERES
TARGETS
TRANSITION ELEMENTS
TUNGSTEN
URANIUM 235 TARGET
URANIUM 238 TARGET