Open AccessMulti-physics computation and deformation testing of a shell-type 1.5-GHz cavity
Author(s) -
Ming-Chyuan Lin,
MengKao Yeh,
Ming-Fu Lu,
ChihHung Lo
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1350/1/012195
Subject(s) - shell (structure) , finite element method , computation , deformation (meteorology) , compression (physics) , distortion (music) , physics , materials science , optics , acoustics , optoelectronics , composite material , computer science , algorithm , amplifier , cmos , thermodynamics
A copper prototype of a 1.5-GHz cavity was manufactured to simulate a superconducting radio-frequency cavity for technique development. Frequency tuning with longitudinal compression of this prototype and cryogenic cooling with liquid nitrogen were performed to examine the numerical results from finite-element models, mainly the corresponding shifts of the fundamental resonant frequency. An appropriate element option improved the accuracy of the resonant frequency and the distribution of the magnetic field. Effects of geometry distortion of an uneven length on the frequency shift of this shell-type cavity as loaded on longitudinal compression are also examined and discussed.