A three-Gaussian fit of phantom scatter correction data
| Autor: | H.N. Jager, van Hj Herman Kleffens, van Jjm Gasteren, S. Heukelom, CF Westermann, van der R Laarse, Jlm Jack Venselaar |
|---|---|
| Přispěvatelé: | Radiation Oncology, School of Med. Physics and Eng. Eindhoven, Applied Physics and Science Education |
| Jazyk: | angličtina |
| Rok vydání: | 1998 |
| Předmět: |
Photon
Field (physics) Biophysics Normal Distribution Imaging phantom Biophysical Phenomena Radiotherapy High-Energy symbols.namesake Optics Gaussian function Dosimetry Humans Scattering Radiation Radiology Nuclear Medicine and imaging Mathematics Photons Radiological and Ultrasound Technology Estimation theory business.industry Phantoms Imaging Radiotherapy Planning Computer-Assisted Radius Models Theoretical Computational physics symbols Physics::Accelerator Physics business Beam (structure) |
| Zdroj: | Physics in Medicine and Biology, 43(3), 577-585. IOP Publishing Ltd. Van Gasteren, J J M, Van der Laarse, R, Venselaar, J L M, Heukelom, S, Jager, H N, Van Kleffens, H J & Westermann, C F 1998, ' A three-Gaussian fit of phantom scatter correction data ', Physics in Medicine and Biology, vol. 43, no. 3, pp. 577-585 . https://doi.org/10.1088/0031-9155/43/3/009 Physics in Medicine and Biology, 43(3), 577-585. Institute of Physics |
| ISSN: | 0031-9155 |
| Popis: | The phantom scatter correction factor S(p), of megavoltage photon beams can be accurately described using a three-Gaussian fit. The model leads to six parameters, with which S(p),(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 S(p), values to be calculated at intermediate beam energies and for any field shape. Calculated S(p)(X, Y) values for rectangular fields (X, Y) can be subsequently used as reference values to compare with measured S(p),(X, Y) values, for example when appraising a new beam. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|