High gradient insulator technology for the dielectric wall accelerator

Author

Sampayan, S. ; Caporaso, G. ; Carder, B. ; Chen, Y. ; Holmes, C. ; Lauer, E. ; Trimble, D. ; Elizondo, J. ; Krogh, M. ; Rosenblum, B. ; Eichenberger, C. ; Fockler, J.

Author_Institution

Lawrence Livermore Nat. Lab., CA, USA

Volume

2

fYear

1995

fDate

1-5 May 1995

Firstpage

1269

Abstract

Insulators composed of finely spaced alternating layers of dielectric and metal are thought to minimize secondary emission avalanche (SEA) growth. Most data to date was taken with small samples (order 10 cm² area) in the absence of an ion or electron beam. We have begun long pulse (>1 μs) high voltage testing of small hard seal samples. Further, we have performed short pulse (20 ns) high voltage testing of moderate scale bonded samples (order 100 cm² area) in the presence of a 1 kA electron beam. Results thus far indicate a 1.0 to 4.0 increase in the breakdown electric field stress is possible with this technology

Keywords

beam handling techniques; particle accelerator accessories; particle accelerators; 1 kA; 1 mus; 20 ns; SEA growth; breakdown electric field stress; dielectric wall accelerator; electron beam; finely spaced alternating layers; high gradient insulator; ion beam; long pulse high voltage testing; moderate scale bonded samples; secondary emission avalanche growth; small hard seal samples; Bonding; Dielectrics and electrical insulation; Electric breakdown; Electron beams; Metal-insulator structures; Performance evaluation; Seals; Space technology; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1995., Proceedings of the 1995

Conference_Location

Dallas, TX

Print_ISBN

0-7803-2934-1

Type

conf

DOI

10.1109/PAC.1995.505196

Filename

505196