Efficient Monte Carlo simulation of multileaf collimators using geometry-related variance-reduction techniques.

  title={Efficient Monte Carlo simulation of multileaf collimators using geometry-related variance-reduction techniques.},
  author={L Brualla and F Salvat and Ricardo Palanco-Zamora},
  journal={Physics in medicine and biology},
  volume={54 13},
A technique for accelerating the simulation of multileaf collimators with Monte Carlo methods is presented. This technique, which will be referred to as the movable-skin method, is based on geometrical modifications that do not alter the physical shape of the leaves, but that affect the logical way in which the Monte Carlo code processes the geometry. Zones of the geometry from which secondary radiation can emerge are defined as skins and the radiation transport throughout these zones is… CONTINUE READING
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