Monte Carlo simulation of the photon beam characteristics from medical linear accelerators

被引：9
|
作者：
Kim, H. K. [1 ]
Han, S. J.
Kim, J. L.
Kim, B. H.
Chang, S. Y.
Lee, J. K.
机构：
[1] Korea Inst Radiol & Med Sci, Natl Radiat Emergency Med Ctr, Seoul 139706, South Korea
[2] Korea Inst Nucl Safety, Nucl Emergency Preparedness, Taejon, South Korea
[3] Korea Atom Energy Res Inst, Dept Hlth Phys, Taejon, South Korea
[4] Hanyang Univ, Dept Nucl Engn, Seoul 133791, South Korea
来源：
RADIATION PROTECTION DOSIMETRY | 2006年 / 119卷 / 1-4期
关键词：
MODEL; DISTRIBUTIONS;
D O I：
10.1093/rpd/nci636
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The MCNPX code has been employed on a personal computer to calculate the dosimetric characteristics of the photon beams from the 6 MV Siemens MX2 and the 10 MV Varian Clinac 2100C linear accelerators. A model of the treatment head includes the major geometric structure within the beam path. The model was used to calculate the energy spectra of the photon beam, percentage depth dose and the dose profiles. The accuracy of the calculated results is examined by comparing them with the measured dose distributions for the two machines. The computed and measured depth dose curves agree to within 2% for all the depths beyond the build-up region for both treatment machines. The calculations agree to within 2% of the measured profiles within the 100-50% dose level. It has been found that the MCNPX code is an effective tool for simulating the clinical photon beam.
引用
收藏
页码：510 / 513
页数：4
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