Dose Delivery Concept and Instrumentation
Simona Giordanengo, Marco Donetti

TL;DR
This paper discusses the principles and instrumentation of dose delivery systems in charged particle radiation therapy, highlighting technological advancements from uniform to highly conformal dose delivery methods.
Contribution
It provides a comprehensive overview of dose delivery concepts and compares various instrumentation techniques based on beam delivery methods and particle types.
Findings
Overview of dose delivery system principles
Comparison of traditional and advanced DD systems
Examples of worldwide DD and beam monitor systems
Abstract
Radiation therapy aims to deliver the prescribed amount of dose to a tumour at the same time as sparing the surrounding tissues as much as possible. In charged particle therapy, delivering the prescribed dose is equivalent to delivering the prescribed number of ions of a given energy at each position of the irradiation field. The accurate delivery is committed to a dose delivery (DD) system that shapes, guides and controls the beam before the patient entrance. Most of the early DD systems provided uniform lateral dose profiles by using different devices, mainly patient-specific, placed in the beam line to shape the three-dimensional final target dose. More recently, systems that provide highly conformal dose distributions using thousands of narrow beams at well-defined energy were developed which feature advanced scanning magnets and real-time beam monitors, without patient-specific…
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