GB1192973A - Rotating Anode X-Ray Tube with Magnetic Damper - Google Patents

Rotating Anode X-Ray Tube with Magnetic Damper

Info

Publication number
GB1192973A
GB1192973A GB32930/67A GB3293067A GB1192973A GB 1192973 A GB1192973 A GB 1192973A GB 32930/67 A GB32930/67 A GB 32930/67A GB 3293067 A GB3293067 A GB 3293067A GB 1192973 A GB1192973 A GB 1192973A
Authority
GB
United Kingdom
Prior art keywords
ray tube
rotating anode
anode
magnetic damper
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB32930/67A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1192973A publication Critical patent/GB1192973A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/10—Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes
    • H01J35/101—Arrangements for rotating anodes, e.g. supporting means, means for greasing, means for sealing the axle or means for shielding or protecting the driving
    • H01J35/1017—Bearings for rotating anodes
    • H01J35/1024—Rolling bearings

Landscapes

  • X-Ray Techniques (AREA)

Abstract

1,192,973. X-ray tubes. HITACHI Ltd. 18 July, 1967 [24 March, 1967], No. 32930/67. Heading H1D. The target 1 of an X-ray tube is mounted for rotation upon a shaft 3 located by bearings 8 within a housing 5 forming part of the anode terminal 10. The housing carries a permanent magnet 11 of cylindrical form which coacts with a cylindrical ferromagnetic member 9 mounted within a skirt 2 of the rotating anode. The magnetic field across the gap 15 between these members serves to damp the coast rotation of the anode after the tube has been switched off. The magnet 11 may be magnetized axially between four pairs of poles of alternating sign.
GB32930/67A 1967-03-24 1967-07-18 Rotating Anode X-Ray Tube with Magnetic Damper Expired GB1192973A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1798667 1967-03-24

Publications (1)

Publication Number Publication Date
GB1192973A true GB1192973A (en) 1970-05-28

Family

ID=11959029

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32930/67A Expired GB1192973A (en) 1967-03-24 1967-07-18 Rotating Anode X-Ray Tube with Magnetic Damper

Country Status (3)

Country Link
US (1) US3502926A (en)
DE (1) DE1589893A1 (en)
GB (1) GB1192973A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3634870A (en) * 1970-03-03 1972-01-11 Machlett Lab Inc Rotating anode for x-ray generator
DE2262757C3 (en) * 1972-12-21 1979-06-21 Siemens Ag, 1000 Berlin Und 8000 Muenchen X-ray rotating anode storage
DE2716079C2 (en) * 1977-04-12 1979-04-05 Kernforschungsanlage Juelich Gmbh, 5170 Juelich Rotating anode x-ray tube
DE3016376A1 (en) * 1980-04-28 1981-10-29 Siemens AG, 1000 Berlin und 8000 München METHOD AND DEVICE FOR THE OPERATION OF ROTARY ANODE X-RAY TUBES
US4969172A (en) * 1988-08-15 1990-11-06 Machlett Labs. Inc. X-ray tube rotor structure
DE4228964C1 (en) * 1992-08-31 1993-11-18 Siemens Ag Rotary anode bearing for X=ray tube - has roller bearing which is loaded with axially directed force to eliminate bearing play using magnetic parts mounted on end wall of vacuum tube and rotating shaft respectively.
CN107210175B (en) * 2015-01-27 2019-04-02 佳能电子管器件株式会社 Rotary anode type x-ray tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2141924A (en) * 1937-11-13 1938-12-27 Gen Electric Electrical discharge device
BE477898A (en) * 1941-04-25
US2311725A (en) * 1941-04-25 1943-02-23 Gen Electric X Ray Corp X-ray tube
US2332044A (en) * 1942-06-24 1943-10-19 Westinghouse Electric & Mfg Co Brake for rotary anode x-ray tubes

Also Published As

Publication number Publication date
DE1589893A1 (en) 1970-10-22
US3502926A (en) 1970-03-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee