Journal of Medical Physics
ORIGINAL ARTICLE
Year
: 2014  |  Volume : 39  |  Issue : 3  |  Page : 156--163

A fast Monte Carlo code for proton transport in radiation therapy based on MCNPX


Keyvan Jabbari1, Jan Seuntjens2 
1 Department of Medical Physics and Engineering, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
2 Medical Physics Unit, McGill University Health Center, Montréal, Québec, Canada

Correspondence Address:
Keyvan Jabbari
Department of Medical Physics and Engineering, School of Medicine, Isfahan University of Medical Sciences, Isfahan

An important requirement for proton therapy is a software for dose calculation. Monte Carlo is the most accurate method for dose calculation, but it is very slow. In this work, a method is developed to improve the speed of dose calculation. The method is based on pre-generated tracks for particle transport. The MCNPX code has been used for generation of tracks. A set of data including the track of the particle was produced in each particular material (water, air, lung tissue, bone, and soft tissue). This code can transport protons in wide range of energies (up to 200 MeV for proton). The validity of the fast Monte Carlo (MC) code is evaluated with data MCNPX as a reference code. While analytical pencil beam algorithm transport shows great errors (up to 10%) near small high density heterogeneities, there was less than 2% deviation of MCNPX results in our dose calculation and isodose distribution. In terms of speed, the code runs 200 times faster than MCNPX. In the Fast MC code which is developed in this work, it takes the system less than 2 minutes to calculate dose for 10 6 particles in an Intel Core 2 Duo 2.66 GHZ desktop computer.


How to cite this article:
Jabbari K, Seuntjens J. A fast Monte Carlo code for proton transport in radiation therapy based on MCNPX.J Med Phys 2014;39:156-163


How to cite this URL:
Jabbari K, Seuntjens J. A fast Monte Carlo code for proton transport in radiation therapy based on MCNPX. J Med Phys [serial online] 2014 [cited 2020 Apr 1 ];39:156-163
Available from: http://www.jmp.org.in/article.asp?issn=0971-6203;year=2014;volume=39;issue=3;spage=156;epage=163;aulast=Jabbari;type=0