A superconducting Landau accelerator module for Bessy II

Author

Stein, P. Vom ; Pekeler, M. ; Vogel, H. ; Anders, W. ; Belomestnykh, S. ; Knobloch, Jan ; Padamsee, H.

Author_Institution

ACCEL Instruments, Bergisch Gladbach, Germany

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1175

Abstract

The installation of a 3rd harmonic Landau accelerator module is planned at BESSY II to improve the beam lifetime. The passive cavity shall provide an accelerating voltage up to 500 kV for beam currents from 10 to 500 mA. A CESR Phase-III cavity [1], scaled to 1.5 GHz, will be used. The cavity design provides strong damping of higher-order modes by ferrite loads on the beam tubes. A new module, constrained to fit into a very limited space at BESSY, is described here. It includes a piezo-electric tuner that allows amplitude control within 1%. Nonstandard modes of operation, such as normal-conducting stand-by operation and thermal breakdown are also discussed

Keywords

accelerator cavities; electron accelerators; storage rings; superconducting cavity resonators; 1.5 GHz; 10 to 500 mA; 500 kV; BESSY II; CESR Phase-III cavity; beam lifetime; ferrite loads; higher-order modes; passive cavity; piezo-electric tuner; superconducting Landau accelerator module; thermal breakdown; Acceleration; Couplers; Cryogenics; Ferrites; Frequency; Helium; Particle beams; Stability; Tuners; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.986618

Filename

986618