Beam Transport Systems for Particle Therapy
Jacobus Maarten Schippers (Paul Scherrer Institut, Villigen,, Switzerland)

TL;DR
This paper discusses the design and components of beam transport systems in particle therapy, focusing on energy selection, beam delivery, gantry rotation, and pencil beam scanning for precise tumor irradiation.
Contribution
It provides a comprehensive overview of beam handling tasks and describes the implementation of pencil beam scanning within a gantry in particle therapy facilities.
Findings
Detailed description of beam transport system components
Explanation of pencil beam scanning method
Integration of scanning technique within gantry systems
Abstract
The beam transport system between accelerator and patient treatment location in a particle therapy facility is described. After some general layout aspects the major beam handling tasks of this system are discussed. These are energy selection, an optimal transport of the particle beam to the beam delivery device and the gantry, a device that is able to rotate a beam delivery system around the patient, so that the tumour can be irradiated from almost any direction. Also the method of pencil beam scanning is described and how this is implemented within a gantry. Using this method the particle dose is spread over the tumour volume to the prescribed dose distribution.
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