Anisotropic angle biasing of photons

Journal Article · Fri Feb 01 04:00:00 EST 1985 · Nucl. Sci. Eng.; (United States)

OSTI ID:5958252

Hendricks, J S; Carter, L L

A synergistic method is described for the angle biasing of anisotropic scattering kernels in Monte Carlo calculations. The method generalizes Dwivedi's suggestion of using the exponential transform to cancel the undesirable fluctuations of angle biasing. Only photons are examined because th biasing of the Klein-Nishina scattering kernel can be treated analytically in contrast to more general neutron scattering kernels, which would require a numerical treatment. Three-dimensional continuous energy results indicate that angle biasing in conjunction with the exponential transform is better than either by itself and greatly enhances Monte Carlo transport for the cases shown.

• Research Organization: Los Alamos National Laboratory, Radiation Transport Group, Los Alamos, NM
• OSTI ID: 5958252
• Journal Information: Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 89:2; ISSN NSENA
• Country of Publication: United States
• Language: English

Related Subjects

645500* -- High Energy Physics-- Scattering Theory-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
ANISOTROPY
DISTRIBUTION
ELEMENTARY PARTICLES
FLUCTUATIONS
GAMMA TRANSPORT THEORY
MASSLESS PARTICLES
MONTE CARLO METHOD
NEUTRAL-PARTICLE TRANSPORT
PHOTON TRANSPORT
PHOTONS
RADIATION TRANSPORT
SCATTERING
SMALL ANGLE SCATTERING
THREE-DIMENSIONAL CALCULATIONS
TRANSFORMATIONS
TRANSPORT THEORY
VARIATIONS