FILAMENT STRUCTURE FOR ELECTRON BEAM SOURCE

PROBLEM TO BE SOLVED: To provide a filament structure for an electron beam source performing economically a replacement work of a filament to be bridged between filament support members, and enhancing strength of the filament support members. SOLUTION: In this filament structure 30 for bridging the...

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Bibliographische Detailangaben
Hauptverfasser:	HIKOSAKA TOMOYUKI, USUI NOBORU, HARADA NOBUYASU, HASHIMOTO ISAO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY GAMMA RAY OR X-RAY MICROSCOPES IRRADIATION DEVICES NUCLEAR ENGINEERING NUCLEAR PHYSICS PHYSICS TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a filament structure for an electron beam source performing economically a replacement work of a filament to be bridged between filament support members, and enhancing strength of the filament support members. SOLUTION: In this filament structure 30 for bridging the filament 33 between filament support members 32, glassy carbon is used for the two filament support members 32 to be fixed at a prescribed interval on an insulating substrate 31. A bonding chip 34 having a U-shaped section is mounted detachably on the tip part of each filament support member 32, and the filament 33 is connected detachably between the filament support members 32 by using the bonding chips 34. COPYRIGHT: (C)2011,JPO&INPIT