Heat conduction effects during the calorimetric determination of absorbed dose to water in radiotherapy beams

被引：8

作者：

Krauss, A ^{[1
]}

机构：

[1] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany

来源：

THERMOCHIMICA ACTA | 2006年 / 445卷 / 02期

关键词：

absorbed dose to water; transportable calorimeter; heat conduction calculation; radiotherapy beams; scanned-beam;

D O I：

10.1016/j.tca.2005.08.016

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A transportable water calorimeter for the determination of the quantity of absorbed dose to water in radiotherapy beams has been developed at the PTB and is presented in detail in this investigation. Heat conduction effects occurring in the calorimeter are studied for different lateral sizes of high-energy photon beams, for different depth dose distributions of electron beams and for a scanned-beam irradiation with a heavy ion beam. The corresponding correction factors are calculated and arguments are given under which conditions these can adequately be applied. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：126 / 132

页数：7

共 11 条

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