Measurement of Backscattered Radiation from Secondary Collimator Jaws into the Beam Monitor Chamber from a Dual Energy Linear Accelerator

被引：0

作者：

Manickam Ravikumar

Ramamoorthy Ravichandran

机构：

[1] Department of Radiation Physics,

[2] Kidwai Memorial Institute of Oncology,undefined

[3] Bangalore,undefined

[4] India,undefined

来源：

Strahlentherapie und Onkologie | 2001年 / 177卷

关键词：

Key Words: Monitor chamber; Collimator scatter; Asymmetric fields; Telescopic analysis; Schlüsselwörter: Messkammer; Kollimatorstreuung; Asymmetrische Felder; Teleskopische Analyse;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The photons and electrons backscattered from the upper and lower secondary collimator jaws give rise to a significant increase in the ion charge measured by the monitor chamber, and this increase varies between different accelerators. We have studied the effect of backscatter into the monitor chamber at 6 MV and 18 MV photon energies for the linear accelerator Clinac-1800.

引用

页码：670 / 675

页数：5

共 45 条

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