Speaker
Description
Linear accelerators in hadron therapy offer the capability of fast energy modulation and reduced activation compared to circular machines. The low-medium energy linac section of current medical linacs proposals rely on high-frequency Side-Coupled Drift Tube Linac (SCDTL) structures for the acceleration due to their compactness and efficiency. Traditionally, these structures have been designed to accelerate single particle species, as the limited space between adjacent accelerating cavities restricts the integration of resistive magnets.
In this work, we present the design and optimization of a 3 GHz SCDTL structures to accelerate both protons and carbon ions (C⁶⁺), focusing on maximizing the achievable accelerating voltage, energy efficiency as well as the integration of resistive magnets. The optimized structures are then used to perform a linac beam dynamics design to accelerate both protons and carbon ions from 10 to 100 MeV/n. The transmission and beam parameters of the proposed design are evaluated.
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