The simulation of linear accelerator Using BEAMnrc with DOSXYZnrc
Linear accelerator accurate simulation is the prerequisite of Monte Carlo dose calculation algorithm. The study simulated 6MV photon beam produced by Varian 600C medical linear accelerator to derive the mean energy and the fullwidth half-maximum(FWHM) of incident electron beam intensity distribution (assumed Gaussian distribution) with BEAMnrc and DOSXYZnrc by matching calculated and measured depth dose curves and off-axis ratios at a depth of 10.0cm in water. Depth dose curve is sensitive to the mean energy, insensitive to radial intensity distribution, while off-axis ratio is dramatically affected by mean energy and radial intensity distribution. Depth dose curves and off-axis ratios were performed past the depth of maximum dose within 1.5% of relative error and at 10.0cm depth within 30% of relative error, respectively.
Ying-hua Shi Ling-hong Zhou Xin Zhen Wen-ting Lu Shu-xu Zhang
School of Biomedical Engineering, Southern Medical University Guangzhou, China Radiotherapy Center, Affiliated Tumor Hospital Guangzhou Medical College Guangzhou, China
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）