High current, large aperture, low HOM, single crystal Nb 2.85GHz superconducting cavity

Author

Shu, Q.S. ; Susta, J. ; Lu, F.H. ; Phipps, I. ; Shi, J.L. ; Redwine, R.P. ; Wang, F.H. ; Wang, D.

Author_Institution

AMAC Inc., Newport

fYear

2007

fDate

25-29 June 2007

Firstpage

2472

Lastpage

2474

Abstract

There is an increasing demand for high beam current, high radio-frequency (RF) power S-band cavities in existing and new accelerator projects, such as for a study of future electron-ion collider (eRHIC) and a very brilliant, broadband, teraherz coherent synchrotron radiation source (CRS). To achieve this goal, the RF cavities must be upgraded to a gap voltage of 1.5 MV in a limited space available in the machine with a high gradient superconducting cavity. At the present time there are no cavities and accessories designed to support the high beam currents of up to 10-100 mA and at the same time provide a high gap voltage at such a high S-band frequency. AMAC proposed a high current, large aperture, low HOM, single crystal Nb 2.85 GHz superconducting cavity with high RF power coupler and HOM absorber device.

Keywords

accelerator RF systems; accelerator cavities; electron accelerators; electron beams; linear accelerators; synchrotron radiation; AMAC; HOM absorber device; MIT-Bates; Nb; RF power coupler; coherent synchrotron radiation source; eRHIC; electron beam energy; frequency 2.85 GHz; future electron-ion collider; gradient superconducting cavity; high beam current; high gap voltage; high radio-frequency power S-band cavities; single crystal superconducting cavity; Acceleration; Apertures; Colliding beam accelerators; Electron beams; Niobium; Optical coupling; Particle beams; Radio frequency; Synchrotron radiation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2007. PAC. IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

978-1-4244-0916-7

Type

conf

DOI

10.1109/PAC.2007.4441287

Filename

4441287