THPB051

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URL	https://doi.org/10.18429/JACoW-IPAC2025-THPB051
Title	Performance evaluation of additively manufactured pure copper radio frequency quadrupole by low-power RF and high-field gradient tests
Authors	A. Ratkus, G. Pikurs Riga Technical University C. Oliver, D. Gavela, G. Moreno, P. Calvo Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas M. Pozzi Rosler Italian M. Vedani Politecnico di Milano M. Vretenar, S. Calatroni, T. Torims, V. Bjelland, W. Wuensch European Organization for Nuclear Research T. Romano Riga Technical University, Politecnico di Milano
Abstract	This paper presents studies on advanced accelerator technologies conducted under the I.FAST (Innovation Fostering in Accelerator Science and Technology) EU project, focusing on additive manufacturing (AM) advancements. AM, particularly powder bed fusion, is giving unique production capabilities for accelerator components. As a proof-of-principle, a full-size pure copper Radio Frequency Quadrupole (RFQ) was successfully manufactured earlier. Low-power RF tests and bead-pull measurements performed on this prototype confirmed the precise electromagnetic field distribution, validating design accuracy and repeatability. Furthermore, high-field gradient tests conducted in the CERN's DC pulsed measurement system showed that AM copper electrodes spaced of 94 µm can achieve gradients up to 42 MV/m. These promising results highlight the transformative potential of additive manufacturing in producing high-frequency accelerator components, advancing both precision and reliability.
Paper	download: THPB051.pdf
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Conference	16th International Particle Accelerator Conference
Series
Location	Taipei, Taiwan
Date	01-06 Jun 2025
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	* Ming-Chyuan Lin - National Synchrotron Radiation Research Center * Yoichi Sato - KEK * Jui-Che Huang - National Synchrotron Radiation Research Center * David Button - Australian Nuclear Science and Technology Organisation * Ping-Shun Chuang - National Synchrotron Radiation Research Center
Online ISBN	978-3-95450-248-6
Online ISSN	2673-5490
Received	28 May 2025
Revised	03 June 2025
Accepted	05 June 2025
Issued	05 November 2025
DOI	10.18429/JACoW-IPAC2025-THPB051
Pages	2612-2615
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.