摘要
高能电子束具有有限的射程,因而可以有效地避免靶区后深部组织的照射,在治疗体表肿瘤和体内浅部肿瘤方面,具有不可替代的作用.研究了基于Hogstrom笔形束电子剂量计算算法中的物理学参数计算问题,分析了物理学参数的基本原理,并根据实际的临床条件,讨论了物理学参数的计算方法.实验结果表明,Hogstrom算法能够有效地解决电子束的剂量计算问题.
Electron beam is unsubstitutable to the therapy of tumors/cancers at body surface or superficial layer because of the limited irradiation range of high-energy electron beam that may avoid efficiently the irradiation into the deep tissue behind target area. The calculation of physical parameters included in the Hogstrom pencil-beam dose calculation algorithm is thus studied further to explore the basic principles of them and how to calculate them in accordance to practical clinical conditions. The results show that the Hogstrom algorithm is available to solve the problem of calculating electron beam dose.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第3期437-440,共4页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金(10771031)．
关键词
电子束
剂量计算
笔形束
物理学参数
electron beam
dose calculation
pencil beam
physical parameter
