[1]宋炳文,潘建南,吴思宇,等. Varian Trilogy直线加速器6 MV光子线治疗头的蒙特卡罗模拟[J].中国医学物理学杂志,2019,36(5):534-539.[doi:DOI:10.3969/j.issn.1005-202X.2019.05.008]
 SONG Bingwen,PAN Jiannan,WU Siyu,et al. Monte Carlo simulation of Varian Trilogy linear accelerator 6 MV photon treatment head[J].Chinese Journal of Medical Physics,2019,36(5):534-539.[doi:DOI:10.3969/j.issn.1005-202X.2019.05.008]
点击复制

 Varian Trilogy直线加速器6 MV光子线治疗头的蒙特卡罗模拟()
分享到:

《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
36卷
期数:
2019年第5期
页码:
534-539
栏目:
医学放射物理
出版日期:
2019-05-25

文章信息/Info

Title:
 Monte Carlo simulation of Varian Trilogy linear accelerator 6 MV photon treatment head
文章编号:
1005-202X(2019)05-0534-06
作者:
 宋炳文潘建南吴思宇朱凤盈梁嘉乐
 南方医科大学顺德医院放射治疗科,广东 佛山 528300
Author(s):
 SONG Bingwen PAN Jiannan WU Siyu ZHU Fengying LIANG Jiale
 Department of Radiation Oncology, Shunde Hospital of Southern Medical University, Foshan 528300, China
关键词:
 直线加速器蒙特卡罗模拟MCNP5百分深度剂量横向剂量分布
Keywords:
 Keywords: linear accelerator Monte Carlo simulation MCNP5 percent depth dose lateral dose distribution
分类号:
R811.1
DOI:
DOI:10.3969/j.issn.1005-202X.2019.05.008
文献标志码:
A
摘要:
 目的:构建一个准确的Varian Trilogy直线加速器6 MV光子线治疗头的蒙特卡罗模型用于剂量计算。方法:根据直线加速器治疗头中各部件的几何参数和材料参数利用蒙特卡罗程序MCNP5构建治疗头模型,超过20个部件被定义在MCNP5中,并采用一个尺寸为(50×50×50) cm3的水箱模型,计算治疗头模型在源皮距=100 cm时,射野大小分别为(5×5)、(10×10)、(20×20)以及(40×40) cm2时的百分深度剂量和横向剂量分布。分析模拟计算结果与实际测量值之间的差异以确定治疗头模型的准确性。结果:所有MCNP5计算结果的统计误差均小于5%,百分深度剂量的计算值与测量值的差异性均小于2%,横向剂量分布的最大差异性不超过3%。结论:蒙特卡罗模拟值与实际测量值取得了很好的一致性,证明了该治疗头模型的准确性,能够用于更进一步的剂量计算以及辐射防护研究。
Abstract:
 Abstract:Objective To construct an accurate Monte Carlo model of Varian Trilogy linear accelerator 6 MV photon treatment head for dose calculation. Methods The treatment head model was constructed using the MCNP5 package of Monte Carlo code according to the geometric parameters and material parameters of the components in linear accelerator treatment head. Over 20 accelerator components were defined in MCNP5. A water tank model with a size of (50×50×50) cm3 was used to calculate the percent depth dose and lateral dose distribution at field sizes of (5×5), (10×10), (20×20) and (40×40) cm2, respectively, with treatment head model at source skin distance=100 cm. The differences between the simulated results and the actual measured values were analyzed to determine the accuracy of the treatment head model. Results The statistical errors of all MCNP5 calculations were less than 5%. The difference between the calculated and measured values of the percent depth dose was less than 2%, and the maximum difference of the lateral dose distribution was no larger than 3%. Conclusion The good agreement between Monte Carlo simulations and measurements proves the accuracy of the treatment head model. Therefore, the treatment head model can be used for further dose calculation and radiation protection research.

相似文献/References:

[1]李军,张西志,花威,等.VARIAN直线加速器IGRT全碳纤维治疗床与虚拟治疗床对高能X射线剂量的影响[J].中国医学物理学杂志,2015,32(04):479.[doi:10.3969/j.issn.1005-202X.2015.04.006]
 [J].Chinese Journal of Medical Physics,2015,32(5):479.[doi:10.3969/j.issn.1005-202X.2015.04.006]
[2]岳海振,张艺宝,刘卓伦,等. 直线加速器均整和非均整模式下射线质和射野输出因子的蒙特卡罗模拟与实测值比较[J].中国医学物理学杂志,2016,33(6):548.[doi:DOI:10.3969/j.issn.1005-202X.2016.06.002]
 [J].Chinese Journal of Medical Physics,2016,33(5):548.[doi:DOI:10.3969/j.issn.1005-202X.2016.06.002]
[3]王遥,霍万里,熊壮,等.TACE手术中不同站姿下铅眼镜和铅面罩对医生眼晶状体防护效果的蒙特卡洛模拟比较[J].中国医学物理学杂志,2016,33(6):553.[doi:DOI:10.3969/j.issn.1005-202X.2016.06.003]
 [J].Chinese Journal of Medical Physics,2016,33(5):553.[doi:DOI:10.3969/j.issn.1005-202X.2016.06.003]
[4]张新,谷晓芳,王培臣,等.轻离子束治疗设备注册检验关键技术问题[J].中国医学物理学杂志,2016,33(6):559.[doi:10.3969/j.issn.1005-202X.2016.06.004]
 [J].Chinese Journal of Medical Physics,2016,33(5):559.[doi:10.3969/j.issn.1005-202X.2016.06.004]
[5]江芬芬,王培,康盛伟,等. 热释光剂量片测量肺部肿瘤放疗剂量的方法[J].中国医学物理学杂志,2016,33(6):564.[doi:10.3969/j.issn.1005-202X.2016.06.005]
 [J].Chinese Journal of Medical Physics,2016,33(5):564.[doi:10.3969/j.issn.1005-202X.2016.06.005]
[6]刘洪源,彭威,杨锐,等. 锥形束CT离线校正肺癌摆位误差[J].中国医学物理学杂志,2016,33(6):573.[doi:10.3969/j.issn.1005-202X.2016.06.007]
 [J].Chinese Journal of Medical Physics,2016,33(5):573.[doi:10.3969/j.issn.1005-202X.2016.06.007]
[7]赵彪,潘香,杨毅,等. 右乳癌保乳术后瘤床同步X线和后程电子线补量调强放疗剂量学比较[J].中国医学物理学杂志,2016,33(6):576.[doi:10.3969/j.issn.1005-202X.2016.06.008]
 [J].Chinese Journal of Medical Physics,2016,33(5):576.[doi:10.3969/j.issn.1005-202X.2016.06.008]
[8]周鹏,胡南,刘岩海,等.医用直线加速器无均整器下6 MV X线能谱特性的蒙特卡罗研究[J].中国医学物理学杂志,2016,33(8):761.[doi:10.3969/j.issn.1005-202X.2016.08.002]
 [J].Chinese Journal of Medical Physics,2016,33(5):761.[doi:10.3969/j.issn.1005-202X.2016.08.002]
[9]邓南,钱建庭,刁现芬,等. 基于宽带检测放疗X-光光声效应仿体实验[J].中国医学物理学杂志,2016,33(9):865.[doi:DOI:10.3969/j.issn.1005-202X.2016.09.001]
 [J].Chinese Journal of Medical Physics,2016,33(5):865.[doi:DOI:10.3969/j.issn.1005-202X.2016.09.001]
[10]张先稳,李军,张西志,等. 宫颈癌术后5野调强放疗4个变量组合的最佳治疗模式的剂量学[J].中国医学物理学杂志,2016,33(9):872.[doi:10.3969/j.issn.1005-202X.2016.09.002]
 [J].Chinese Journal of Medical Physics,2016,33(5):872.[doi:10.3969/j.issn.1005-202X.2016.09.002]
[11]喻伟,徐胜,马宏宾,等. 基于IAEA398号报告进行直线加速器输出量校准的实践与探索[J].中国医学物理学杂志,2017,34(3):235.[doi:10.3969/j.issn.1005-202X.2017.03.004]
 [J].Chinese Journal of Medical Physics,2017,34(5):235.[doi:10.3969/j.issn.1005-202X.2017.03.004]
[12]董晓庆,林清,胡杰,等. 病人皮肤剂量监测仪在放射治疗的临床应用[J].中国医学物理学杂志,2017,34(4):363.[doi:DOI:10.3969/j.issn.1005-202X.2017.04.009]
[13]门阔,戴建荣,陈辛元,等. 双能锥形束CT线性混合技术提高相对电子密度的准确性[J].中国医学物理学杂志,2017,34(5):433.[doi:DOI:10.3969/j.issn.1005-202X.2017.05.001]
[14]夏祥1,李永宝,吴朝霞,等. Varian RapidARC直线加速器6 MeV-X线虚拟源模型的建立[J].中国医学物理学杂志,2017,34(6):561.[doi:DOI:10.3969/j.issn.1005-202X.2017.06.005]
 [J].Chinese Journal of Medical Physics,2017,34(5):561.[doi:DOI:10.3969/j.issn.1005-202X.2017.06.005]
[15]闫冰,吴爱东. 非晶硅电子射野影像装置在直线加速器日检中的应用[J].中国医学物理学杂志,2017,34(10):988.[doi:DOI:10.3969/j.issn.1005-202X.2017.10.004]
 [J].Chinese Journal of Medical Physics,2017,34(5):988.[doi:DOI:10.3969/j.issn.1005-202X.2017.10.004]
[16]李建锋,黄顺平. 实验细胞直线加速器照射方法与剂量学探讨[J].中国医学物理学杂志,2017,34(12):1211.[doi:DOI:10.3969/j.issn.1005-202X.2017.12.005]
 LI Jianfeng,HUANG Shunping. Irradiation method of experimental cell on linear accelerator and dosimetry study[J].Chinese Journal of Medical Physics,2017,34(5):1211.[doi:DOI:10.3969/j.issn.1005-202X.2017.12.005]
[17]唐志全,蒋泽,彭旭东,等. 医科达加速器的剂量监测与控制系统[J].中国医学物理学杂志,2018,35(1):9.[doi:DOI:10.3969/j.issn.1005-202X.2018.01.003]
 TANG Zhiquan,JIANG Ze,PENG Xudong,et al. Dose monitoring and control system of Elekta linear accelerator[J].Chinese Journal of Medical Physics,2018,35(5):9.[doi:DOI:10.3969/j.issn.1005-202X.2018.01.003]
[18]曹婷婷,全红,刘晖,等.联影直线加速器新型全碳素纤维治疗床对放疗剂量的影响[J].中国医学物理学杂志,2018,35(1):14.[doi:DOI:10.3969/j.issn.1005-202X.2018.01.004]
 CAO Tingting,QUAN Hong,LIU Hui,et al. Effects of a new carbon fiber couch of linear accelerator on radiotherapy dose[J].Chinese Journal of Medical Physics,2018,35(5):14.[doi:DOI:10.3969/j.issn.1005-202X.2018.01.004]
[19]蒋大振,王骁踊,张俊,等. 运用PTW QUICKCHECK webline晨检仪分析医用加速器输出稳定性[J].中国医学物理学杂志,2019,36(5):540.[doi:DOI:10.3969/j.issn.1005-202X.2019.05.009]
 JIANG Dazhen,WANG Xiaoyong,ZHANG Jun,et al. Using PTW QUICKCHECK webline to monitor the output stability of linear accelerator[J].Chinese Journal of Medical Physics,2019,36(5):540.[doi:DOI:10.3969/j.issn.1005-202X.2019.05.009]

备注/Memo

备注/Memo:
 【收稿日期】2018-12-26
【作者简介】宋炳文,助理工程师,研究方向:医疗器械维修,E-mail: 373772143@qq.com
【通信作者】梁嘉乐,助理工程师,研究方向:医疗器械维修,E-mail: ljlshunde@163.com
更新日期/Last Update: 2019-05-23