PMID: 8971978Dec 1, 1996Paper

Theoretical and experimental determination of phantom scatter factors for photon fields with different radial energy variation

Physics in Medicine and Biology
A SätherbergM Karlsson

Abstract

The output factor used for monitor unit determination in radiotherapy can be divided into two factors: the head scatter factor and the phantom scatter factor. Theoretical and experimental phantom scatter factors have been compared for different beam qualities between 4 MV and 50 MV and field sizes from 5 cm x 5 cm to 30 cm x 30 cm. The theoretical data were obtained through a convolution method based on Monte Carlo calculated energy spectra and dose kernels. The calculations have been performed both for accelerators with a rather large energy variation within the field and for accelerators with a constant energy distribution in the field. Deviations between theoretical and experimental data were found to be less than 1%.

References

Apr 1, 1977·Acta Radiologica: Therapy, Physics, Biology·H SvenssonD Reistad
Jul 1, 1991·Physics in Medicine and Biology·P Andreo
Apr 1, 1991·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·J J van GasterenC F Westermann
Jan 1, 1988·Medical Physics·G Luxton, M A Astrahan
Jul 1, 1982·Radiology·T R Mackie, J W Scrimger
Jun 1, 1995·Medical Physics·M E MastersonJ Enstrom
Sep 1, 1993·Medical Physics·N PapanikolaouP Reckwerdt
Mar 1, 1996·Physics in Medicine and Biology·P Storchi, J J van Gasteren
Aug 1, 1994·Physics in Medicine and Biology·H Nyström, M Karlsson

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Citations

Aug 22, 2001·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·D GeorgJ Venselaar
Apr 28, 2011·Medical Physics·Dietmar GeorgBrendan McClean
Aug 4, 2006·Physics in Medicine and Biology·T NyholmM Karlsson
Mar 31, 2005·Physics in Medicine and Biology·Oliver S DohmFridtjof Nüsslin
Jun 12, 1998·Physics in Medicine and Biology·B E Bjärngard, P Vadash
Dec 10, 1999·Physics in Medicine and Biology·A Ahnesjö, M M Aspradakis
Nov 8, 2016·Physics in Medicine and Biology·Geoff BudgellRussell Thomas

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