Title :
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
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;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505196
