Tagged Particles in Monte Carlo Calculations of Radiation Transfer Using the Prizma Computer Program

• Published in: Atomic energy (New York, N.Y.) Vol. 98; no. 5; pp. 367 - 374
• Main Authors: Kandiev, Ya. Z., Serova, E. V.
• Format: Journal Article
• Language: English
• Published: New York Springer Nature B.V 01-05-2005
• Subjects: Monte Carlo simulation; Radiation; Studies
• ISSN: 1063-4258; 1573-8205
• DOI: 10.1007/s10512-005-0219-1

The additional possibilities due to the introduction into the PRIZMA program, intended for performing Monte Carlo calculations of linear radiation transfer problems, of a particle tagging technique are studied. In calculations, it is often necessary to estimate the contribution of particles which were in some particular situation. The tagged-particle method was developed to obtain such results. A particle is tagged with a marker and the results are recorded as a function of whether or not the particle is tagged. To solve multivariant problems, arising in the calculation of the effects due to small perturbations, a special method was developed for simulating trajectories using tagged particles. This method makes it possible to obtain in a single calculation correlated results for all variants of the problem. The possibilities of the tagged-particle method and the special method of simulation are illustrated for numerical examples.[PUBLICATION ABSTRACT]