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PubMed · 806937

Extended field treatment flatness filter for 4 MV linear accelerators.

R G Lane·B R Paliwal
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Abstract

An auxiliary flatness filter for large field treatment on 4 MV linear accelerator provides an isodose distribution which does not vary more than 6% over the central 80% of the axis of a 32 x 32-cm field at 80 cm in air, and at a 2.5, 6, and 12-cm depth in water. This lead disc filter does not affect the central axis depth dose values, and results in only a 16% reduction in dose rate on the central field axis.

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Radiotherapy, High-EnergyJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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R G Lane, B R Paliwal. 1975. Extended field treatment flatness filter for 4 MV linear accelerators.. https://doi.org/10.1148/115.2.478

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