Varian Medical Systems Particle Therapy Gmbh

Varian Medical Systems Particle Therapy Gmbh & Co Kg

Joerg Wulff

Systems, devices, and methods for non-Gaussian energy distribution modeling for treatment planning algorithms used in particle radiation therapy.

Spectrum modeling systems, methods, and devices for particle therapy treatment planning

Embodiments of the present invention disclose methods and systems for producing an adaptive pencil beam having an adjustable lateral beam size and Bragg-peak width. According to one disclosed embodiment, an apparatus for producing an adaptive pencil beam is disclosed. The apparatus includes a set of momentum band expanders configured to widen a momentum spread of a pencil beam, where a momentum band expander is selected from the set of momentum band expanders to receive the pencil beam, and a slit at dispersive focus of two dipole magnets to adjust a width of a Bragg-peak of the pencil beam. According to another disclosed embodiment, a method for producing an adaptive pencil beam with an adjustable lateral beam is disclosed. The method includes selecting a scatter foil, or setting of a defocusing/focusing magnet, and adjusting a lateral size of the pencil beam.

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Krefeld, Germany

Joerg Wulff