Parallel tally geometry in GEANT4 for medical dose calculation

Author

Aso, T. ; Apostolakis, J. ; Asai, M. ; Cosmo, G. ; Daquino, G. ; Kimura, A. ; Koi, T. ; Sasaki, T. ; Verderi, M.

Author_Institution

Toyama Coll. of Maritime Technol.

Volume

2

fYear

2005

fDate

23-29 Oct. 2005

Firstpage

978

Lastpage

980

Abstract

The use of Monte Carlo calculation is essential in radiation therapy. Monte Carlo simulation is widely used for verifying the dose for nozzle design, quality assurance, and the treatment planning system. GEANT4 simulation toolkit provides many powerful functions suitable for the dose calculation in radiation therapy. In radiation therapy, both a simple homogeneous water phantom and a complex volume extracted from CT data are used for the dose calculation. Therefore, universal access to the particle information regardless to the complexity of the geometries is desirable. We extended functionalities of GEANT4 to allow two independent geometries in one simulation application simultaneously, where one geometry represents real materials and the other represents an artificial geometry for a tally. In this report, we describe the parallel tally geometry in GEANT4 for medical dose calculations. We also report the validation results of this new capability

Keywords

Monte Carlo methods; dosimetry; medical computing; phantoms; radiation therapy; CT data; GEANT4 simulation toolkit; Monte Carlo simulation; homogeneous water phantom; medical dose calculation; nozzle design; parallel tally geometry; quality assurance; radiation therapy; treatment planning system; Biomedical applications of radiation; Data mining; Detectors; Imaging phantoms; Information geometry; Medical simulation; Monte Carlo methods; Quality assurance; Solid modeling; Transportation;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2005 IEEE

Conference_Location

Fajardo

ISSN

1095-7863

Print_ISBN

0-7803-9221-3

Type

conf

DOI

10.1109/NSSMIC.2005.1596417

Filename

1596417