Open AccessEfficient hybrid approach to the electromagnetic design of resonant cavities for side‐coupled linacs
Author(s) -
Laneve Dario,
Falconi Mario Christian,
Bozzetti Michele,
Rutigliani Giovanni,
Prisco Raffaele Andrea,
Dimiccoli Vincenzo,
Prudenzano Francesco
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.5145
Subject(s) - linear particle accelerator , microwave , physics , particle accelerator , resonant cavity , code (set theory) , computer science , particle swarm optimization , finite element method , optics , beam (structure) , telecommunications , laser , machine learning , set (abstract data type) , thermodynamics , programming language
A novel hybrid analytical/numerical approach, implemented via homemade code, is exploited to design the microwave cavities of a linear accelerator (linac) characterised by a very complex geometry. A finite element method‐based three‐dimensional investigation is integrated with a multi‐objective particle swarm optimisation technique in order to automatically design and optimise the geometry of the linac cavities. The cavity optimisation takes into account the typical figures of merit of a linac design. The hybrid approach is used to design a 27 MeV 3 GHz standing‐wave side‐coupled linac tank of 35 cavities including the end cells. The promising simulated results suggest that a global search approach is a useful and flexible tool for the electromagnetic design of accelerator cavities as well as other complex resonating multicavity structures.