The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2019
Filed:
Dec. 08, 2014
Hitachi, Ltd., Tokyo, JP;
Takamichi Aoki, Tokyo, JP;
Fuutarou Ebina, Tokyo, JP;
Hideaki Nishiuchi, Tokyo, JP;
Shigemitsu Hara, Tokyo, JP;
Masumi Umezawa, Tokyo, JP;
Takayoshi Seki, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An acceleratorincludes a circular vacuum container including circular return yokesA,B. An injection electrodeis disposed closer to an inlet of a beam extraction pathin the return yokeB than a central axis C of the vacuum container. Magnetic polesA toF are radially disposed from the injection electrodeat the periphery of the injection electrodein the return yokeB. RecessionsA toF are disposed alternately with the magnetic polesA toF in the circumferential direction of the return yokeB. In the vacuum container, a concentric trajectory region, in which multiple beam turning trajectories centered around the injection electrodeare present, is formed, and an eccentric trajectory region, in which multiple beam turning trajectories eccentric from the injection electrodeare present, is formed around the region.