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A variable shielding block for irregularly shaped megavoltage X-ray fields

Published online by Cambridge University Press:  21 August 2006

A. W. Seaby  and
C. Craven
A. W. Seaby
Affiliation:
Department of Medical Physics and Clinical Engineering, Singleton Hospital, Swansea NHS Trust, Swansea, UK
C. Craven
Affiliation:
Department of Medical Physics and Clinical Engineering, Singleton Hospital, Swansea NHS Trust, Swansea, UK
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Abstract

This technical note describes a hinged lead alloy shielding block that could be used, in certain circumstances, for shaping a megavoltage X-ray field. The construction of the shield is described and the results of transmission and penumbra measurements are given.

Keywords

Shieldleadmegavoltage X-ray
Type
Technical Note
Information
Journal of Radiotherapy in Practice , Volume 1 , Issue 4 , December 2000 , pp. 221 - 223
Copyright
2000 Cambridge University Press

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