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Electron tube

United States Patent

December 20, 2011
View the Complete Patent at the US Patent & Trademark Office
An electron tube of the present invention includes: a vacuum vessel including a face plate portion made of synthetic silica and having a surface on which a photoelectric surface is provided, a stem portion arranged facing the photoelectric surface and made of synthetic silica, and a side tube portion having one end connected to the face plate portion and the other end connected to the stem portion and made of synthetic silica; a projection portion arranged in the vacuum vessel, extending from the stem portion toward the photoelectric surface, and made of synthetic silica; and an electron detector arranged on the projection portion, for detecting electrons from the photoelectric surface, and made of silicon.
Suyama; Motohiro (Hamamatsu, JP), Fukasawa; Atsuhito (Hamamatsu, JP), Arisaka; Katsushi (Los Angeles, CA), Wang; Hanguo (North Hills, CA)
Hamamatsu Photonics K.K. (Hammatsu-shi, Shizuoka, JP), The Regents of the University of California (Oakland, CA)
12/ 257,105
October 23, 2008
GOVERNMENT SUPPORT The invention described herein was made with support of the U.S. Government, including Grant No. DE-FG02-91ER40662 awarded by the Department of Energy and Grant No. PHY0139065 awarded by the National Science Foundation, and it is acknowledged that the United States Government has certain rights in the invention.