Title :
Research on the Convolution/Superposition Algorithm Based on Monte Carlo Calculation in IMRT
Author :
Yan, Bing ; Guoli Li ; Lin, Hui ; Jing, Jia ; Wang, Chao ; Sheng, Daning
Author_Institution :
Hefei Univ. of Technol., Hefei, China
Abstract :
Due to the requirement of the inverse planning process, TPS(treatment planning system) of IMRT (Intensity Modulated Radiation Therapy) needs accurate dose calculation method with high speed. A superposition /convolution algorithm for photon beams is presented in this paper based on Monte Carlo calculation. The dose distribution can be calculated by the convolution of energy fluence and pencil beam kernel obtained from Monte Carlo codes dosxyznrc/beamnrc/egsnrc. The dose calculation result of test examples on water phantom are compared with the result of Monte Carlo simulation. The results demonstrate the C/S algorithm based on Monte Carlo calculation has fast speed and high precision, which can be used as a kind of reliable fast dose calculation tool in the TPS of IMRT.
Keywords :
Monte Carlo methods; convolution; dosimetry; phantoms; radiation therapy; Monte Carlo calculation; beamnrc; convolution; dose calculation; dosxyznrc; egsnrc; energy fluence; intensity modulated radiation therapy; inverse planning process; pencil beam kernel; photon beams; superposition algorithm; treatment planning system; water phantom; Chaos; Convolution; Electric shock; Imaging phantoms; Intensity modulation; Kernel; Monte Carlo methods; Process planning; Technology planning; Testing;
Conference_Titel :
Biomedical Engineering and Informatics, 2009. BMEI '09. 2nd International Conference on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4132-7
Electronic_ISBN :
978-1-4244-4134-1
DOI :
10.1109/BMEI.2009.5305357
