X-ray or gamma ray systems or devices – Source – Electron tube
Patent
1995-03-28
1996-12-10
Porta, David P.
X-ray or gamma ray systems or devices
Source
Electron tube
378144, H01J 3510
Patent
active
055839061
ABSTRACT:
In a method of manufacturing a rotating anode type X-ray tube, in the step of checking the rotational balance of a rotary structure to which an anode target is fixed and correcting the rotational balance as required, the rotary structure is fitted on a stationary support jig which sprays a high-pressure gas from its interior, in place of a columnar stationary structure, to set the rotary structure upright. The rotary structure is rotated at a high speed while spraying the high-pressure gas, and the rotational balance of the rotary structure is checked. The rotational balance of a rotating unit can be checked in the air easily and at high precision, and can be adjusted directly in the outer air as required.
REFERENCES:
patent: 2353150 (1944-07-01), Dietz
patent: 3909584 (1975-09-01), Brienza et al.
patent: 4688427 (1987-08-01), Hyland, Jr.
patent: 5204890 (1993-04-01), Anno et al.
Patent Abstracts Of Japan, vol. 010, No. 324 (P-512), Nov. 5, 1986 & JP-A0061 130841 (Shimadzu Corp) Jun. 18, 1986.
Patent Abstracts Of Japan, vol. 008, No. 175 (P-294), Aug. 11, 1984 & JP-A-59 068638 (Mitsubishi Jukogyo KK) Apr. 18, 1984.
Ono Katsuhiro
Sugiura Hiroyuki
Tanaka Makoto
Kabushiki Kaisha Toshiba
Porta David P.
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