AN EMPIRICAL-METHOD TO BUILD UP A MODEL OF PROTON DOSE DISTRIBUTION FOR A RADIOTHERAPY TREATMENT-PLANNING PACKAGE

被引：47

作者：

LEE, M ^{[1
]}

NAHUM, AE ^{[1
]}

WEBB, S ^{[1
]}

机构：

[1] ROYAL MARSDEN HOSP,SUTTON SM2 5PT,SURREY,ENGLAND

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 1993年 / 38卷 / 07期

关键词：

D O I：

10.1088/0031-9155/38/7/009

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

An empirical method has been developed to build up a three-dimensional proton dose model in a water phantom. The proton beam delivering this dose distribution is constructed as a group of parallel, broad monoenergetic beams. The mean and the standard deviation of their ranges are input to fit the resulting central-axis depth-dose distribution to a pre-specified shape. The model has been used in a radiotherapy treatment-planning package for comparing proton and photon plans. This dose model is approximate and adequate for comparative treatment planning, and is also usable when locally measured proton dose distribution data are not available.

引用

页码：989 / 998

页数：10

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