Invention Grant
- Patent Title: High-brightness lanthanum hexaboride cathode and method for manufacturing of cathode
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Application No.: US16203407Application Date: 2018-11-28
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Publication No.: US10553388B1Publication Date: 2020-02-04
- Inventor: Victor Katsap
- Applicant: NuFlare Technology, Inc. , NuFlare Technology America, Inc.
- Applicant Address: JP Kanagawa US CA Sunnyvale
- Assignee: NuFlare Technology, Inc.,NuFlare Technology America, Inc.
- Current Assignee: NuFlare Technology, Inc.,NuFlare Technology America, Inc.
- Current Assignee Address: JP Kanagawa US CA Sunnyvale
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: H01J1/148
- IPC: H01J1/148 ; H01J1/22 ; H01J37/075 ; H01J9/04
Abstract:
A thermionic cathode, an electron emission apparatus, and a method of fabricating the thermionic cathode are provided. The thermionic cathode includes an emitter. The emitter includes a lanthanum hexaboride (LaB6) crystal having a crystallographic orientation of (310). The operating temperature of the thermionic cathode is greater than 1800 K.
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