Modelling of an Orthovoltage X-ray Therapy Unit with the EGSnrc Monte Carlo Package

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

Simulations with the EGSnrc code package of an orthovoltage x-ray machine have been performed. The BEAMnrc code was used to transport electrons, produce x-ray photons in the target and transport of these through the treatment machine down to the exit level of the applicator. Further transport in water or CT based phantoms was facilitated by the DOSXYZnrc code. Phase space files were scored with BEAMnrc and analysed regarding the energy spectra at the end of the applicator. Tuning of simulation parameters was based on the half-value layer quantity for the beams in either Al or Cu. Calculated depth dose and profile curves have been compared against measurements and show good agreement except at shallow depths. The MC model tested in this study can be used for various dosimetric studies as well as generating a library of typical treatment cases that can serve as both educational material and guidance in the clinical practice

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Radiology, Nuclear Medicine and Medical Imaging
Original languageEnglish
Title of host publicationJournal of Physics: Conference Series
PublisherIOP Publishing
PagesU86-U95
Number of pages10
Volume74
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes
EventFirst European Workshop on Monte Carlo Treatment Planning - Gent, Belgium
Duration: 2006 Oct 222006 Oct 25

Publication series

Name
Volume74
ISSN (Print)1742-6588
ISSN (Electronic)1742-6596

Conference

ConferenceFirst European Workshop on Monte Carlo Treatment Planning
CountryBelgium
CityGent
Period2006/10/222006/10/25