A MONTE CARLO MULTI-BEND DUCT PROCEDURE

Technical Report · Sat Sep 15 04:00:00 EDT 1962

OSTI ID:4719323

Collins, D G

A Monte Carlo procedure was developed to evaluate the enengy, angular distribution, and intensity of either the scattered neutron or gamma-ray flux that penetrates a multibend duct. The procedure was coded for the IBM 7090. A detailed presentation of the Monte Carlo method as an approximation to the Neumann series solution of the integral transport equation is given. Sampling techniques utilized by the procedure are described. Included in these techniques are splitting, Russian Roulette, statistical estimation, and a method of biasing the sampling from the source angular distributions. Results obtained with the procedure are compared with the data taken in the duct penetration and systemization experiment conducted at General Dynamics/Fort Worth. This comparison confirms the validity of the methods. Further, it shows that the procedure will be a valuable aid in the analysis of experimental data as well as in the determination of the validity and range of applicability of some of the simpler methods developed to calculate the flux penetrating a multibend duct. (auth)

• Research Organization: General Dynamics/Fort Worth. Div. of General Dynamics Corp., Fort Worth, Tex.
• NSA Number: NSA-17-021201
• OSTI ID: 4719323
• Report Number(s): NARF-62-13T; MR-N-297
• Country of Publication: United States
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
COMPUTERS
CONFIGURATION
ENERGY
EQUATIONS
GAMMA RADIATION
MATHEMATICS
MONTE CARLO METHOD
NEUTRON FLUX
PHYSICS
PIPES
PROGRAMMING
SAMPLING
STATISTICS
TRANSPORT THEORY