Patent ID: 6029079
Filing Date: 2000-02-22
Classification: A61N

Abstract:
A computer implemented process for producing a 3-dimensional map of a radiation dose delivered to a patient, comprising:constructing patient-dependent information necessary for a Monte-Carlo transport calculation;executing said Monte-Carlo transport calculation; andproducing, from said patient-dependent information and said Monte-Carlo transport calculation, a 3-dimensional map of the dose delivered to said patient,wherein the step of constructing patient dependent-information comprises analyzing Monte Carlo simulation history files of standard linear accelerators and generating compact, 9 dimensional probability distribution functions (PDFs) describing a patient-independent radiation field for use in said Monte Carlo dose calculation, wherein said 9 dimensional PDFs comprise 7 degrees of freedom, wherein memory storage requirements are reduced and subsequent calculations to select an arbitrary number of uncorrelated samples from the PDF are allowed.