Surface and percentage depth doses for secondary blocking using a multileaf collimator and cerrobend-alloy blocks

被引：6

作者：

Dawson, J ^{[1
]}

Kahler, D ^{[1
]}

McDonald, B ^{[1
]}

Kopecky, W ^{[1
]}

Gu, J ^{[1
]}

机构：

[1] MED PHYS ASSOCIATES,ST LOUIS,MO 63141

来源：

RADIOTHERAPY AND ONCOLOGY | 1997年 / 42卷 / 03期

关键词：

surface dose; multileaf collimator; secondary blocking;

D O I：

10.1016/S0167-8140(96)01883-X

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Percentage depth doses from the surface to a depth of 30 cm have been measured for a number of square fields using 6 MV and 15 MV X-rays as part of the commissioning procedure for a commercially available MLC. Factors such as changing SSD, presence of a secondary blocking tray in the beam, and radiation transmission between the MLC leaves were investigated. (C) 1997 Elsevier Science Ireland Ltd.

引用

收藏

页码：285 / 288

页数：4

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