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

Wakefield and HOMs preliminary characterization of the four-quadrant multi-cell RF accelerating structure for the ASTERIX project

WEPS088
4 Jun 2025, 16:00
2h
Exhibiton Hall A _Salmon (TWTC)

Exhibiton Hall A _Salmon

TWTC

Poster Presentation MC5.D02 Nonlinear Single Particle Dynamics Resonances, Tracking, Higher Order, Dynamic Aperture, Code Developments Wednesday Poster Session

Speaker

Giuseppe Torrisi (Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud)

Description

The goal of the ASTERIX project, proposed at INFN-LNF and funded by the CSN5, is the first-time demonstration of a practical, meter-long X-band RF structure for real linear accelerators made of hard copper and four quadrants. Our joining technique will be the TIG welding for the prototype. During the feasibility study, in the first year, we will proceed to the RF cavity design of two full structures (~ 1m long and ~100 cells), one with optimized geometry for single-bunch and the other one for multi-bunch operation. We will perform the RF design optimization, including thermo-mechanical analysis, of the multi-cell TW cavity and the RF mode-launcher (which will be integrated with the cavity in the most compact way possible) for both structures’ geometries. In this paper, we show the preliminary characterization of the higher-order modes (HOMs) and wake-fields, which are detrimental for the particle beam with high-quality parameters typically accelerated in such structures, in the case of single-bunch operation. The electromagnetic designs will be performed by using the 3D numerical codes Ansys-HFSS and CST-Microwave Studio.

Funding Agency

Italian National Scientific Committee 5 (CSN5) of INFN.

Region represented Europe
Paper preparation format Word

Author

Luigi Faillace (Istituto Nazionale di Fisica Nucleare)

Co-authors

Anna Giribono (Istituto Nazionale di Fisica Nucleare) Bruno Spataro (Istituto Nazionale di Fisica Nucleare) Cristina Vaccarezza (Istituto Nazionale di Fisica Nucleare) David Alesini (Istituto Nazionale di Fisica Nucleare) Enrica Chiadroni (Sapienza University of Rome) Gilles Jacopo Silvi (Istituto Nazionale di Fisica Nucleare) Dr Giorgio Mauro (Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud) Giuseppe Torrisi (Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud) Luca Ficcadenti (Sapienza University of Rome) Luigi Palumbo (Sapienza University of Rome) Martina Carillo (Sapienza University of Rome) Mauro Migliorati (Istituto Nazionale di Fisica Nucleare) Tetsuo Abe (High Energy Accelerator Research Organization) Valery Dolgashev (SLAC National Accelerator Laboratory) Yasuo Higashi (High Energy Accelerator Research Organization) Yelong Wei (University of Science and Technology of China) Zhicheng Huang (University of Science and Technology of China)

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