PMID: 9533136Apr 9, 1998Paper

A three-Gaussian fit of phantom scatter correction data

Physics in Medicine and Biology
J J van GasterenC Westermann

Abstract

The phantom scatter correction factor Sp of megavoltage photon beams can be accurately described using a three-Gaussian fit. The model leads to six parameters, with which Sp(r) is described as a smooth function of the field radius r for beam qualities in the range from 60Co up to 25 MV. The parameters allow Sp values to be calculated at intermediate beam energies and for any field shape. Calculated Sp(X, Y) values for rectangular fields (X, Y) can be subsequently used as reference values to compare with measured Sp(X, Y) values, for example when appraising a new beam.

References

Apr 1, 1991·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·J J van GasterenC F Westermann
Mar 1, 1996·Physics in Medicine and Biology·P Storchi, J J van Gasteren

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Citations

Mar 7, 2006·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Tufve NyholmMikael Karlsson
Mar 10, 1999·Physics in Medicine and Biology·J L VenselaarC F Westermann
Mar 10, 1999·Physics in Medicine and Biology·J McDonoughB E Bjärngard

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