Direct-Heated flats emitter for emitting an electron beam

Details Direct-Heated flats emitter for emitting an electron beam Direct-Heated flats emitter for emitting an electron beam

1998-08-20

2000-09-05

Porta, David P.

X-ray or gamma ray systems or devices

Source

Electron tube

378113, 378121, 378173, 378146, 430942, H01J 3506

Patent

active

061154539

ABSTRACT:
A direct-heated flat emitter for generating a homogenous electron beam, particularly for x-ray tubes, has two terminal lugs for the heating current supply formed at the edge of the perimeter of the emission surface and the emission surface is subdivided into interconnects by slits. The slits have a width no less than 10 .mu.m and no greater than 1% of the length of a diagonal of the smallest rectangle which can circumscribe the emission surface.

REFERENCES:
patent: 2919373 (1959-12-01), Riley et al.
patent: 3745403 (1973-07-01), Misumi
patent: 3867637 (1975-02-01), Braun et al.
patent: 3992633 (1976-11-01), Braun et al.
patent: 4679219 (1987-07-01), Ozaki
patent: 4730353 (1988-03-01), Ono et al.
patent: 4764947 (1988-08-01), Lesensky
patent: 4777642 (1988-10-01), Ono
patent: 5170422 (1992-12-01), Fiebiger
patent: 5343112 (1994-08-01), Wegmann et al.
patent: 5703924 (1997-12-01), Hell et al.
patent: 5878110 (1999-03-01), Yamamoto
patent: 5895736 (1999-04-01), Nakajima
Curry III, Dowdey, Murry. Jr, Christensen's Physics of Diagnostic Radiology 1990 pp. 28-30.

Affiliated with

Also associated with

Rating

Direct-Heated flats emitter for emitting an electron beam does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Direct-Heated flats emitter for emitting an electron beam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct-Heated flats emitter for emitting an electron beam will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2220559