1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

A comprehensive analytical model for RFQ beam dynamics

WEPM069
4 Jun 2025, 16:00
2h
Exhibiton Hall A _Magpie (TWTC)

Exhibiton Hall A _Magpie

TWTC

Poster Presentation MC5.D03 Calculations of EM fields Theory and Code Developments Wednesday Poster Session

Speaker

Emanuele Laface (European Spallation Source)

Description

The Radiofrequency Quadrupole (RFQ) is the initial accelerating device in many modern linear accelerators (linacs), such as the European Spallation Source (ESS), where it accelerates protons from 75 keV to 3.6 MeV. Due to its complex geometry, RFQ beam dynamics are typically studied using finite element solvers, which, while accurate, are computationally intensive and unsuitable for online modeling. The widely used analytical "two-term" model, originally introduced by I. M. Kapchinsky and V. A. Teplyakov, provides a faster alternative but often suffers from inaccuracies, with errors in particle dynamics tracking reaching up to 20%, particularly with high-intensity beams. This paper presents a comprehensive analytical model for the RFQ, detailing how to derive its coefficients based on boundary conditions induced by the RFQ geometry and demonstrating its application for particle transport simulations.

Region represented Europe
Paper preparation format LaTeX

Author

Emanuele Laface (European Spallation Source)

Co-author

Isabella Vojskovic (European Spallation Source)

Presentation materials

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