Magnetic Heating Effect for Quarter-Wave Resonator (QWR) Superconducting Cavities-Reference-Cited by-同舟云学术

Magnetic Heating Effect for Quarter-Wave Resonator (QWR) Superconducting Cavities

Published:2023-07-03 Issue:3 Volume:7 Page:21
ISSN:2412-382X
Container-title:Quantum Beam Science
language:en
Short-container-title:QuBS

Author:

Kim Heetae¹^ORCID,Jeon Sungmin²,Jung Yoochul¹,Kim Juwan¹

Affiliation:

1. Rare Isotope Science Project, Institute for Basic Science, Daejeon 34000, Republic of Korea

2. Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea

Abstract

In this paper, the magnetic heating effect of the superconducting quarter-wave resonator (QWR) cavities is investigated, and the Q slopes of the superconducting cavities are measured with an increasing accelerating field. Bardeen–Cooper–Schrieffer (BCS) resistance is calculated for the zero-temperature limit. The vertical test is shown for the performance test of the QWR cavities. The parameters for the QWR cavity are presented. The Q slopes are measured as a function of an accelerating electric field at 4.2 K. The surface resistance of the superconducting cavity increases with an increasing peak magnetic field. The magnetic defects degrade the quality factor. From the magnetic degradation, we determine the magnetic moments of the superconducting cavities. All quarter-wave resonator (QWR) cryomodules are installed in the tunnel, and beam commissioning is performed successfully.

Funder

Rare Isotope Science Project (RISP) of the Institute for Basic Science

Ministry of Science and ICT and National Research Foundation of Republic of Korea

Publisher

MDPI AG

Subject

Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics

Link

https://www.mdpi.com/2412-382X/7/3/21/pdf

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