ALGORITHMS - OPTIMAL ALGORITHM FOR COLLISION PROBABILITIES CALCULATION IN 3-D RECTANGULAR-CYLINDRICAL GEOMETRIES

In 3D geometry, the problems of the collision probability (CP) method related to high memory and execution time requirements increase rapidl y with the number of regions. The paper shows an attempt to minimise t hese requirements at the level of probability matrix evaluation. The m ixed method (MM) for tracking and probability calculations, and an imp roved module of CPs contribution calculation, were developed. Finally, the new schema has approximately 50% reduced memory and execution tim e compared to the old version. (C) 1997 Elsevier Science Ltd.