THE SLOWING DOWN OF NEUTRONS IN HYDROGENOUS MEDIA--STATUS OF THEORY AND EXPERIMENT

Technical Report · Fri Oct 31 04:00:00 EST 1958

OSTI ID:4322216

Goldstein, H; Zweifel, P F; Foster, Jr, D G

The developments on the slowing down of neutrons in hydrogenons media since 1955 are reviewed. The paradox is discussed, that while neutron age can be calculated by rigorous methods, the computed values are in consistent disagreement with experiment. The situation for fission neutrons in light water is described first. Then the experimental evidence and the theoretical calculations are considered for other combinations of source and moderator. Some of the recent calculations of neutron flux curves in hydrogenous media, obtained mainly by the spatial moments and Monte Carlo techniques, are presented. Applications to reactor problems are discussed, treating particularly machine codes involving the Fourier transform method and the use of rigorous point kernels in reactor calculations. (M.H.R.)

• Research Organization: Nuclear Development Corp. of America, White Plains, N.Y.; Knolls Atomic Power Lab., Schenectady, N.Y.; General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
• NSA Number: NSA-12-014957
• OSTI ID: 4322216
• Report Number(s): A/CONF.15/P/2375
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

COMPUTERS
CONFIGURATION
FERMI AGE
FISSION
FOURIER ANALYSIS
FOURIER TRANSFORMATIONS
HYDROGEN
MATHEMATICS
MODERATORS
MONTE CARLO METHOD
NEUTRON FLUX
NEUTRON SOURCES
NEUTRONS
OSCILLATIONS
PHYSICS
PROGRAMMING
REACTORS
SLOWDOWN
VARIATIONS
WATER