High field performance in reduced cross-sectional x-band waveguides made of different materials

Author

Yokoyama, Kazue ; Higashi, Yasuo ; Higo, Toshiyasu ; Kudoh, Noboru

Author_Institution

High Energy Accel. Res. Organ., Tsukuba

fYear

2007

fDate

25-29 June 2007

Firstpage

2119

Lastpage

2121

Abstract

RF breakdown is one of the major issues in the development of accelerating structures operated at high fields since the acceleration field is limited due to the metal surface damage [1, 2, 3]. RF breakdown studies are presently being carried out at Nextef (New X-band Test Facility at KEK) [4]. To study the characteristics of different materials on high-field RF breakdown we designed a reduced cross-sectional waveguide that has a field of approximately 200 MV/m at an RF power of 100 MW [5]. These type of waveguides are made of different materials such as copper (OFC), stainless steel, and molybdenum. This paper presents the first high-power test conducted on one of the copper waveguides.

Keywords

accelerator RF systems; copper; particle accelerators; rectangular waveguides; KEK; New X-band Test Facility; Nextef; accelerating structures; copper waveguide; high-field RF breakdown; metal surface damage; molybdenum; rectangular waveguide; reduced cross-sectional X-band waveguides; stainless steel; Acceleration; Copper; Electric breakdown; Gold; Hydrogen; Milling; Radio frequency; Rectangular waveguides; Waveguide components; Waveguide lasers;

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.2007.4441169

Filename

4441169