Neutron skyshine from intense 14-MeV neutron source facility

Journal Article · Mon Jul 01 04:00:00 EDT 1985 · Nucl. Sci. Eng.; (United States)

OSTI ID:6171962

Nakamura, T; Hayashi, K; Takahashi, A; Torii, A; Uwamino, Y; Veda, M

The dose distribution and the spectrum variation of neutrons due to the skyshine effect have been measured with the high-efficiency rem counter, the multisphere spectrometer, and the NE-213 scintillator in the environment surrounding an intense 14-MeV neutron source facility. The dose distribution and the energy spectra of neutrons around the facility used as a skyshine source have also been measured to enable the absolute evaluation of the skyshine effect. The skyshine effect was analyzed by two multigroup Monte Carlo codes, NIMSAC and MMCR-2, by two discrete ordinates S /sub n/ codes, ANISN and DOT3.5, and by the shield structure design code for skyshine, SKYSHINE-II. The calculated results show good agreement with the measured results in absolute values. These experimental results should be useful as benchmark data for shyshine analysis and for shielding design of fusion facilities.

• Research Organization: University of Tokyo, Institute for Nuclear Study, Midori-cho, Tanashi, Tokyo
• OSTI ID: 6171962
• Journal Information: Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 90:2; ISSN NSENA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
COMPUTER CODES
COMPUTER-AIDED DESIGN
DETECTION
DOSIMETRY
ELEMENTARY PARTICLES
ENERGY SPECTRA
FERMIONS
HADRONS
MEASURING INSTRUMENTS
MONTE CARLO METHOD
MULTIGROUP THEORY
NEUTRON DETECTION
NEUTRON DETECTORS
NEUTRON DOSIMETRY
NEUTRON SOURCE FACILITIES
NEUTRON SPECTRA
NEUTRON TRANSPORT THEORY
NEUTRONS
NUCLEONS
RADIATION DETECTION
RADIATION DETECTORS
RADIATION DOSE DISTRIBUTIONS
SHIELDING
SHIELDS
SPECTRA
TRANSPORT THEORY