Calculated energy and angular dependence of particle fluxes at the exit of the advanced neutron source radial and tangential beam tubes

Journal Article · Sun Dec 01 04:00:00 EST 1991 · Nuclear Science and Engineering; (United States)

OSTI ID:5485497

Hayashi, M ^[1]; Nishigori, T ^[2]; Alsmiller, Jr, R G; Lillie, R A ^[3]

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1. Kyoto Univ., Research Reactor Inst., Kumatori-cho, Sennan-gun, Osaka 590-04 (JP)
2. Osaka Univ., Dept. of Nuclear Engineering, Yamada-oka 2-1, Suita, Osaka 565 (JP)
3. Oak Ridge National Lab., Oak Ridge, TN (US)

In this paper calculational studies are conducted of neutron and gamma-ray transport in the beam tubes of a proposed high-flux reactor for the Advanced Neutron Source. To avoid excessively long computing times, the calculations were carried out by coupling two, two- dimensional discrete ordinates calculations. In this paper the calculational methodology used is briefly described. Calculated results are presented of the thermal neutron, nonthermal neutron, and gamma-ray fluxes in a radial and a tangential beam tube. Both scalar and angular fluxes in and at the exit of the beam tubes are given. When compared with the radial beam tube, the tangential beam tube shows a lower flux of high-energy neutrons and a much lower flux of gamma rays. The spectral characteristics of the particle fluxes at the exits of the beam tubes are similar to those at the entrances.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5485497
• Journal Information: Nuclear Science and Engineering; (United States), Journal Name: Nuclear Science and Engineering; (United States) Vol. 109:4; ISSN 0029-5639; ISSN NSENA
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220100* -- Nuclear Reactor Technology-- Theory & Calculation
663610 -- Neutron Physics-- (1992-)
663620 -- Physics of Radiations Other Than Neutrons-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
COMPUTERS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY DEPENDENCE
FERMIONS
GAMMA RADIATION
HADRONS
IONIZING RADIATIONS
NEUTRAL-PARTICLE TRANSPORT
NEUTRON FLUX
NEUTRON SOURCES
NEUTRON TEMPERATURE
NEUTRON TRANSPORT
NEUTRONS
NUCLEONS
PARTICLE SOURCES
PHOTON TRANSPORT
RADIATION FLUX
RADIATION SOURCES
RADIATION TRANSPORT
RADIATIONS
REACTORS
SCALARS
SPACE DEPENDENCE
THERMAL NEUTRONS
TUBES