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MCPT: A Monte Carlo code for simulation of photon transport in tomographic scanners

Authors
Journal
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
0168-9002
Publisher
Elsevier
Publication Date
Volume
299
Identifiers
DOI: 10.1016/0168-9002(90)90835-t
Disciplines
  • Design
  • Mathematics
  • Medicine
  • Physics

Abstract

Abstract MCPT is a special-purpose Monte Carlo code designed to simulate photon transport in tomographic scanners. Variance reduction schemes and sampling games present in MCPT were selected to characterize features common to most tomographic scanners. Combined splitting and biasing (CSB) games are used to systematically sample important detection pathways. An efficient splitting game is used to tally particle energy deposition in detection zones. The pulse height distribution of each detector can be found by convolving the calculated energy deposition distribution with the detector's resolution function. A general geometric modelling package, HERMETOR, is used to describe the geometry of the tomographic scanners and provide MCPT information needed for particle tracking. MCPT's modelling capabilities are discribed and preliminary experimental validation is presented.

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