Particle Acceleration in a Helical Wave Guide
X. Artru (IPNL), C. Ray (IPNL)

TL;DR
This paper investigates electromagnetic wave modes in a helical wave guide, focusing on modes suitable for relativistic particle acceleration, by decomposing the wave field and calculating eigenmodes with boundary condition discretization.
Contribution
It introduces a method to decompose wave fields in a helical guide and computes eigenmodes for particle acceleration applications, considering modes near light speed.
Findings
Eigenmodes calculated using boundary discretization.
Identification of modes suitable for relativistic acceleration.
Method applicable to designing particle accelerators.
Abstract
The electromagnetic wave field propagating in a helical wave guide is decomposed in an angular momentum basis. Eigenmodes are calculated using a truncation in and a discretisation of the boundary condition. Modes slightly slower than light are considered for relativistic particle acceleration.
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