Superconducting RF activities at Peking University

Author

Chia-erh, Chen ; Kui, Zhao ; Baocheng, Zhang ; Guangwei, Wang ; Wang Lipang ; Jinhu, Song

Author_Institution

Inst. of Heavy Ion Phys., Peking Univ., China

fYear

1991

fDate

6-9 May 1991

Firstpage

2396

Abstract

The RF superconducting group at the Institute of Heavy Ion Physics of Peking University is developing Nb cavities for high-brightness electron sources. A series of efforts has been made since fall 1988 to construct a class 100 laboratory suitable for processing and assembling Nb cavities, as well as to develop equipment and techniques for the design surface treatment and RF test of superconducting cavities. The fields of fundamental and high-order modes, as well as wakefield potentials, were studied using the SUPERFISH, URMEL, and TBCI codes during design. The preparation of the Nb cavity and the structure of the cryostat are described and preliminary results of Q versus temperature are presented and discussed. An accelerating field of 8.6 MV/m was obtained with a Q/sub 0/ of 6.5*10/sup 8/ at 2.25 K. In addition, coaxial and pillbox cavities were designed and constructed to test the RF properties of high-T/sub c/ YBaCuO samples.<>

Keywords

cavity resonators; electron sources; niobium; superconducting devices; Nb cavities; YBaCuO; cryostat; high-brightness electron sources; pillbox cavities; superconducting RF cavities; superconducting cavities; surface treatment; wakefield potentials; Assembly; Electron sources; Laboratories; Niobium; Physics; Potential well; Radio frequency; Surface treatment; Temperature; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-0135-8

Type

conf

DOI

10.1109/PAC.1991.164978

Filename

164978