GB1141448A - Multiple-cathode x-ray triode tube - Google Patents

Multiple-cathode x-ray triode tube

Info

Publication number
GB1141448A
GB1141448A GB30297/67A GB3029767A GB1141448A GB 1141448 A GB1141448 A GB 1141448A GB 30297/67 A GB30297/67 A GB 30297/67A GB 3029767 A GB3029767 A GB 3029767A GB 1141448 A GB1141448 A GB 1141448A
Authority
GB
United Kingdom
Prior art keywords
cathode
ray
june
arms
electrodes
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
GB30297/67A
Inventor
Toshitaka Seki
Takeshi Muraki
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of GB1141448A publication Critical patent/GB1141448A/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
    • H01J35/06—Cathodes
    • H01J35/064—Details of the emitter, e.g. material or structure
    • 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
    • H01J35/06—Cathodes
    • H01J35/066—Details of electron optical components, e.g. cathode cups

Abstract

1,141,448. X-ray tubes. TOKYO SHIBAURA ELECTRIC CO. Ltd. 30 June, 1967 [30 June, 1966], No. 30297/67. Heading H1D. An X-ray tube is provided with a plurality of cathode assemblies 4 each mounted on a respective radial arm 15 extending from a common metallic stem 7a secured to a re - entrant portion of the envelope. Each cathode assembly comprises a cup - shaped control electrode 18 with grid wires across its open end and containing an electron emissive filament; the three lead-in wires for these electrodes are covered by a shield 22 and pass through the stem 7a. If the arms 15 are metallic the electrodes 18 are insulated from them by washers 16, but the arms 15 may be of ceramic or other insulating material. In the example shown there are two cathode assemblies arranged so that the points of impact 12 of the electrons from them on the rotating anode 3 are spaced apart by a distance equal to the distance between human eyes.
GB30297/67A 1966-06-30 1967-06-30 Multiple-cathode x-ray triode tube Expired GB1141448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6132866 1966-06-30

Publications (1)

Publication Number Publication Date
GB1141448A true GB1141448A (en) 1969-01-29

Family

ID=13167944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30297/67A Expired GB1141448A (en) 1966-06-30 1967-06-30 Multiple-cathode x-ray triode tube

Country Status (2)

Country Link
US (1) US3452232A (en)
GB (1) GB1141448A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2208752A (en) * 1987-08-17 1989-04-12 Kaisha Rigaku Denki Kabushiki X-ray generator
CN111492456A (en) * 2018-11-28 2020-08-04 雷迈迪有限公司 Compact X-ray tube with extractor

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586264B2 (en) * 1978-11-02 1983-02-03 株式会社東芝 Stereo X-ray tube
US4359660A (en) * 1980-12-15 1982-11-16 Physics International Company Series diode X-ray source
US4811375A (en) * 1981-12-02 1989-03-07 Medical Electronic Imaging Corporation X-ray tubes
FR2531571A1 (en) * 1982-08-06 1984-02-10 Thomson Csf X-RAY TUBE UNIVERSAL FOR STEREOGRAPHY
US4689809A (en) * 1982-11-23 1987-08-25 Elscint, Inc. X-ray tube having an adjustable focal spot
US4637040A (en) * 1983-07-28 1987-01-13 Elscint, Ltd. Plural source computerized tomography device with improved resolution
US9941091B2 (en) * 2015-04-17 2018-04-10 Electronics And Telecommunications Research Institute X-ray tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE406067C (en) * 1923-02-16 1924-11-14 Phoenix Roentgenroehrenfabrike Incandescent cathode x-ray tube with high vacuum
US2471298A (en) * 1943-10-02 1949-05-24 Gen Electric X Ray Corp Cathode cup construction
US2948822A (en) * 1959-01-22 1960-08-09 Mario Ghia X-ray tubes
US3250916A (en) * 1963-06-14 1966-05-10 Machlett Lab Inc Stereo x-ray device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2208752A (en) * 1987-08-17 1989-04-12 Kaisha Rigaku Denki Kabushiki X-ray generator
CN111492456A (en) * 2018-11-28 2020-08-04 雷迈迪有限公司 Compact X-ray tube with extractor
CN111492456B (en) * 2018-11-28 2023-05-02 雷迈迪有限公司 Compact X-ray tube with extractor

Also Published As

Publication number Publication date
US3452232A (en) 1969-06-24

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