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An equivalent-square formula for head-scatter factors.

P Vadash·B Bjärngard
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Abstract

A simple formula is evaluated for calculating the equivalent square collimator setting that gives the same headscatter factor as a given rectangular field. The expression requires that one parameter is determined experimentally. It is found that one single value of this parameter can be used for the six x-ray beams studied (two accelerators, two energies, with and without wedge).

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P Vadash, B Bjärngard. An equivalent-square formula for head-scatter factors.. https://doi.org/10.1118/1.597024

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