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使用BEAMnrc代码对远距钴治疗机的多叶准直器设计进行蒙特卡罗模拟。

Monte Carlo simulation of a multi-leaf collimator design for telecobalt machine using BEAMnrc code.

作者信息

Ayyangar Komanduri M, Kumar M Dinesh, Narayan Pradush, Jesuraj Fenedit, Raju M R

机构信息

International Cancer Center, Mahatma Gandhi Memorial Medical Trust Hospital, Bhimavaram, AP-534 204, India.

出版信息

J Med Phys. 2010 Jan;35(1):23-32. doi: 10.4103/0971-6203.58780.

DOI:10.4103/0971-6203.58780
PMID:20177567
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2825000/
Abstract

This investigation aims to design a practical multi-leaf collimator (MLC) system for the cobalt teletherapy machine and check its radiation properties using the Monte Carlo (MC) method. The cobalt machine was modeled using the BEAMnrc Omega-Beam MC system, which could be freely downloaded from the website of the National Research Council (NRC), Canada. Comparison with standard depth dose data tables and the theoretically modeled beam showed good agreement within 2%. An MLC design with low melting point alloy (LMPA) was tested for leakage properties of leaves. The LMPA leaves with a width of 7 mm and height of 6 cm, with tongue and groove of size 2 mm wide by 4 cm height, produced only 4% extra leakage compared to 10 cm height tungsten leaves. With finite (60)Co source size, the interleaf leakage was insignificant. This analysis helped to design a prototype MLC as an accessory mount on a cobalt machine. The complete details of the simulation process and analysis of results are discussed.

摘要

本研究旨在为钴远距离治疗机设计一种实用的多叶准直器（MLC）系统，并使用蒙特卡罗（MC）方法检查其辐射特性。钴机使用BEAMnrc Omega-Beam MC系统进行建模，该系统可从加拿大国家研究委员会（NRC）网站免费下载。与标准深度剂量数据表和理论建模束的比较显示，两者在2%以内具有良好的一致性。对一种采用低熔点合金（LMPA）的MLC设计进行了叶片泄漏特性测试。宽度为7 mm、高度为6 cm、舌槽尺寸为宽2 mm高4 cm的LMPA叶片，与10 cm高的钨叶片相比，额外泄漏仅为4%。对于有限尺寸的（60）Co源，叶片间泄漏不显著。该分析有助于设计一种作为钴机附件安装的MLC原型。文中讨论了模拟过程的完整细节和结果分析。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf06/2825000/9d59341cab79/JMP-35-23-g012.jpg
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本文引用的文献

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J Med Phys. 2009 Apr;34(2):63-5. doi: 10.4103/0971-6203.51931.
2
Design of mini phantom and measurement of cobalt-60 beam data parameters.微型体模的设计及钴-60射线束数据参数的测量
J Med Phys. 2008 Jul;33(3):100-7. doi: 10.4103/0971-6203.42750.
3
A comparison between cobalt and linear accelerator-based treatment plans for conformal and intensity-modulated radiotherapy.基于钴和直线加速器的适形放疗及调强放疗治疗计划的比较。
Br J Radiol. 2008 Apr;81(964):304-10. doi: 10.1259/bjr/77023750. Epub 2008 Feb 4.
4
Design and development of motorized multileaf collimator for telecobalt unit.远距钴治疗机电动多叶准直器的设计与开发
Technol Cancer Res Treat. 2006 Dec;5(6):597-605. doi: 10.1177/153303460600500607.
5
MCNP simulation of a Theratron 780 radiotherapy unit.
Radiat Prot Dosimetry. 2005;116(1-4 Pt 2):65-8. doi: 10.1093/rpd/nci125.
6
Monte carlo dose calculations in conventional thorax fields for 60Co photons.60钴光子在常规胸部野中的蒙特卡罗剂量计算。
Radiat Med. 2005 Aug;23(5):341-50.
7
Monte Carlo dose calculations for radiotherapy machines: Theratron 780-C teletherapy case study.放射治疗设备的蒙特卡罗剂量计算：Theratron 780-C远距离治疗案例研究。
Phys Med Biol. 2004 Mar 7;49(5):807-18. doi: 10.1088/0031-9155/49/5/011.
8
Monte Carlo simulation of a typical 60Co therapy source.典型钴-60治疗源的蒙特卡罗模拟。
Med Phys. 1999 Nov;26(11):2494-502. doi: 10.1118/1.598770.
9
BEAM: a Monte Carlo code to simulate radiotherapy treatment units.BEAM：一款用于模拟放射治疗设备的蒙特卡罗代码。
Med Phys. 1995 May;22(5):503-24. doi: 10.1118/1.597552.
10
Central axis depth dose data for use in radiotherapy. General introduction.
Br J Radiol. 1972;11:Suppl 11:8-17.