Abstract

Purpose A new software technique for speeding up dose calculation for photon beams on high end personal computers is presented. Method and Materials The software exploits inherent parallelism in the dose calculation process using multi‐threading, thus providing a reduction in computation time that is proportional to the number of processor cores. In order to multi‐thread the TERMA calculation, a thread‐safe function calculates the TERMA contribution from a single beamlet. Multiple threads, typically matching the number of processor cores are started and run in loops, calculating the TERMA contribution for any un‐calculated beamlet. The collapsed cone convolution/superposition algorithm then works in a similar manner, with the thread function calculating the dose contribution from a single cone direction. The threads are run in loops until all directions for all beams have been computed. For both cases, the …
Purpose

Method and Materials

Date

January 1, 1970

Authors

C Corbit, S Narayanan

Journal

Medical Physics

Volume

34

Issue

6Part7

Pages

2411-2411

Publisher

American Association of Physicists in Medicine