Abstract
A 325-MHz superconducting half-wave resonator has been designed with β = 0.51. Three shapes of the inner conductors (race track, ring shape and elliptical shape) were optimized to decrease the peak electromagnetic fields and minimize the dissipated RF power on the cavity walls. In order to suppress the operation frequency shift caused by fluctuations of the helium pressure and maximize the tuning ranges, the frequency shifts and mechanical properties were studied on the electric and magnetic areas. The helium vessel was designed to keep the mechanical structure as robust as possible.
Similar content being viewed by others
References
W.M. Yue, H. Yuan, S.H. Zhang, et al., Development of the superconducting half-wave resonator for Injector II in C-ADS. Paper presented at the 16th international conference on RF superconductivity, Cité Internationale Universitaire, Paris, 23–27 September 2013
Z. Gao, Y. He, W. Chang, et al., The study on microphonics of low beta HWR cavity at IMP. Paper presented at the 17th international conference on RF superconductivity, TRIUMF, Whistler, 13–18 September 2015
K. Saito, N. Bultman, E. Burkhardt, et al., Superconducting RF development for FRIB at MSU. Paper presented at the 27th international linear accelerator conference, CERN, Geneva, 31th August–5th September 2014
V. Yakovlev, T. Arkan, M. Awida, et al., Status of SRF development for Project X. Paper presented at the 16th international conference on RF superconductivity, Cité Internationale Universitaire, Paris, 23–27 September 2013
P. Duchesne, S. Brault, et al., FRIOC01: design of the 352 MHz, beta 0.50, double-spoke cavity for ESS. Paper presented at the 16th international conference on RF superconductivity, Cité Internationale Universitaire, Paris, 23–27 September 2013
A. Facco, F. Scarpa, D. Zenere et al., Low and intermediate β, 352 MHz superconducting half-wave resonators for high power hadron acceleration. Phys. Rev. Spec. Accel. (2006). doi:10.1103/PhysRevSTAB.9.110101
B. Mustapha, S.V. Kutsaev, P.N. Ostroumov, et al., A compact design for accelerator driven system. Paper presented at the 27th international linear accelerator conference, CERN, Geneva, 31th August–5th September 2014
CST Microwave Studio Software: https://www.cst.com/Products/CSTMWS/EigenmodeSolver. Accessed 20 Nov 2014
B. Mustapha, P.N. Ostroumov, Z.A. Conway, A ring-shaped center conductor geometry for a half-wave resonator. Paper presented at the 3rd international particle accelerator conference, IEEE and APS-DPB, New Orleans, 20–25 May 2012
Z.Q. Yang, X.Y. Lu, L. Yang et al., A preliminary quadrupole asymmetry study of a β = 0.12 superconducting single spoke cavity. Chin. Phys. C (2014). doi:10.1088/1674-1137/38/10/107001
F. Zhu, S.W. Quan, K. Zhao et al., Study on high order modes of a beta = 0.45, f = 350 MHz spoke cavity. Chin. Phys. C 30(10), 1006–1009 (2006)
M. Schuh, F. Gerigk et al., Influence of higher modes on the stability in the high power superconducting proton linac. Phys. Rev. Spec. Accel. (2011). doi:10.1103/PhysRevSTAB.14.051001
W. Panofsky, W. Wenzel, Some considerations concerning the transverse deflection of charged particles in radio-frequency fields. Rev. Sci. Instrum. (1956). doi:10.1063/1.1715427
S. Posen, M. Liepe, Mechanical optimization of superconducting cavities in continuous wave operation. Phys. Rev. Spec. Accel. (2012). doi:10.1103/PhysRevSTAB.15.022002
ANSYS Multiphysics: http://www.ansys.com/zh-CN/Products/Multiphysics. Accessed 26 Feb 2015
J.C. Slater, Microwave electronics. Rev. Mod. Phys. 18, 482–483 (1946)
Author information
Authors and Affiliations
Corresponding authors
Additional information
This work was supported by the Important Directional Program of the Chinese Academy of Sciences (No. Y115210YQO) and the 973 Program (No. Y437030KJO).
Rights and permissions
About this article
Cite this article
Wu, AD., Zhang, SH., Yue, WM. et al. Design study on medium beta superconducting half-wave resonator at IMP. NUCL SCI TECH 27, 80 (2016). https://doi.org/10.1007/s41365-016-0081-y
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/s41365-016-0081-y