Effects of changing the random number stride in Monte Carlo calculations

Journal Article · Sun Sep 01 00:00:00 EDT 1991 · Nuclear Science and Engineering; (United States)

OSTI ID:5780879

Hendricks, J S ^[1]

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1. Los Alamos National Lab., Los Alamos, NM (US)

This paper reports on a common practice in Monte Carlo radiation transport codes which is to start each random walk a specified number of steps up the random number sequence from the previous one. This is called the stride in the random number sequence between source particles. It is used for correlated sampling or to provide tree-structured random numbers. A new random number generator algorithm for the major Monte Carlo code MCNP has been written to allow adjustment of the random number stride. This random number generator is machine portable. The effects of varying the stride for several sample problems are examined.

• OSTI ID: 5780879
• Journal Information: Nuclear Science and Engineering; (United States), Vol. 109:1; ISSN 0029-5639
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
RADIATION SOURCES
M CODES
RADIATION TRANSPORT
COMPUTER CODES
MONTE CARLO METHOD
REACTOR KINETICS
KINETICS
220100* - Nuclear Reactor Technology- Theory & Calculation
990200 - Mathematics & Computers
220400 - Nuclear Reactor Technology- Control Systems