Neutron and gamma radiation from a nitrogen sphere surrounding a D-T neutron source

Journal Article · Sun May 01 00:00:00 EDT 1977 · Nucl. Sci. Eng.; (United States)

OSTI ID:7214102

Sidhu, G S; Farley, W E; Hansen, L F; Komoto, T; Pohl, B; Wong, C

The spectra of neutrons and secondary gamma rays emerging from a liquid-nitrogen sphere of 129.3-cm radius with a 14-MeV neutron source at its center were measured. Time-of-flight techniques were used to obtain the detailed data and to minimize background. To compare the measurements with calculations, the detector efficiencies and appropriate experimental parameters were folded into the calculated output of TARTNP, a coupled neutron-photon Monte Carlo transport code utilizing the Lawrence Livermore Laboratory Evaluated Neutron Data Library, September 1975. The calculated neutron spectra show fair agreement with the measurements, and the calculated gamma-ray spectrum is nearly the same as the corresponding measured spectrum. The total biological dose derived from these measurements is in good agreement with the calculations and provides a benchmark for a dose-versus-range curve obtained by TARTNP calculations

• Research Organization: Univ. of California, Livermore
• OSTI ID: 7214102
• Journal Information: Nucl. Sci. Eng.; (United States), Vol. 63:1
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPES AND RADIATION SOURCES
NEUTRON SOURCES
GAMMA SPECTRA
NEUTRON SPECTRA
DEUTERIUM
NITROGEN
SPHERES
T CODES
TIME-OF-FLIGHT METHOD
TRITIUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
COMPUTER CODES
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
NONMETALS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PARTICLE SOURCES
RADIATION SOURCES
RADIOISOTOPES
SPECTRA
STABLE ISOTOPES
YEARS LIVING RADIOISOTOPES
070200* - Radiation Sources