X-ray or gamma ray systems or devices – Source – Electron tube
Patent
1994-11-04
1996-04-09
Porta, David P.
X-ray or gamma ray systems or devices
Source
Electron tube
378131, 378132, H05G 102
Patent
active
055068812
ABSTRACT:
In an X-ray tube apparatus of a rotating anode type, a stator surrounds an anode rotary structure and an insulating container section placed around the outer periphery of a stationary structure such that a portion of its coil conductor located near the anode target side constitutes an expanding flared coil conductor portion. Therefore, it is possible, for the X-ray tube equipped with an envelope having a large-diameter metal section and small-diameter insulating container section, to shorten the axial length from an anode target of the X-ray tube to a far end of the rotary structure and to suppress the build-up of electric charges on the inner surface of the insulating container section.
REFERENCES:
patent: 3500097 (1970-03-01), Perry et al.
patent: 4247782 (1981-01-01), Muraki
patent: 5136625 (1992-08-01), Heiting et al.
patent: 5159697 (1992-10-01), Wirth
patent: 5265147 (1993-11-01), Kim et al.
Patent Abstracts of Japan, vol. 4, No. 117 (E-022) Aug. 20, 1980 & JP-A-55 072 351 (Toshiba Corp) May 31, 1980.
Kitami Takayuki
Ono Katsuhiro
Kabushiki Kaisha Toshiba
Porta David P.
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