Study of slab transmission and reflection

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

OSTI ID:5005199

Eisenhauer, C M ^[1]

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1. National Inst. of Standards and Technology, Center for Radiation Research, Gaithersburg, MD (US)

In this paper, using Monte Carlo calculations, it is shown that the transmission of scattered neutrons or gamma rays from a point source through a plane slab of infinite extent to a point detector depends on the orientation of the slab but varies very little with the slab position. This is also true for reflected radiation if the source is replaced by its image source and the results are interpreted in terms of a transmission problem. It is also shown that the transition from a slab of small extent (narrow beam conditions) to a slab of infinite extent (broad beam conditions) can be characterized by a simple function of the single-scatter angle. This function, too, can be applied to reflected radiation by invoking the image source. Typical results are presented for polyethylene and iron.

• OSTI ID: 5005199
• Journal Information: Nuclear Science and Engineering; (United States), Journal Name: Nuclear Science and Engineering; (United States) Vol. 107:1; ISSN 0029-5639; ISSN NSENA
• Country of Publication: United States
• Language: English

Related Subjects

654003* -- Radiation & Shielding Physics-- Neutron Interactions with Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
GAMMA RADIATION
HADRONS
IONIZING RADIATIONS
IRON
MEASURING INSTRUMENTS
METALS
MONTE CARLO METHOD
NEUTRAL-PARTICLE TRANSPORT
NEUTRON TRANSPORT
NEUTRONS
NUCLEONS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POINT SOURCES
POLYETHYLENES
POLYMERS
POLYOLEFINS
RADIATION DETECTORS
RADIATION SOURCES
RADIATION TRANSPORT
RADIATIONS
REFLECTION
SCATTERING
SLABS
TRANSITION ELEMENTS
TRANSMISSION