Title :
Breakdown of alumina RF windows
Author :
Saito, Y. ; Matuda, N. ; Anami, S. ; Kinbara, A. ; Horikoshi, G. ; Tanaka, J.
Author_Institution :
Nat. Lab. for High Energy Phys., Ibaraki, Japan
fDate :
12/1/1989 12:00:00 AM
Abstract :
The breakdown mechanism of RF windows has been investigated. The localized multipactor electron bombardment, accompanied by rapidly growing alumina luminescence leading to the surface melting, were observed by the resonant ring test. The puncture is found to be induced by surface melting. TiN coating on the alumina disk was confirmed to suppress secondary electron emission and to prevent multipactor bombardment
Keywords :
alumina; electric breakdown of solids; protective coatings; titanium compounds; Al2O3; Al2O3-TiN; RF windows; TiN coating; alumina luminescence; breakdown mechanism; localized multipactor electron bombardment; multipactor bombardment prevention; resonant ring test; secondary electron emission; secondary electron emission suppression; surface melting; surface melting induced puncture; Ceramics; Electric breakdown; Image intensifiers; Klystrons; Optical surface waves; Radio frequency; Resonance; Stimulated emission; Testing; Tin;
Journal_Title :
Electrical Insulation, IEEE Transactions on
