CA993938A - X-ray tube having focusing cup with non-emitting coating - Google Patents

X-ray tube having focusing cup with non-emitting coating

Info

Publication number
CA993938A
CA993938A CA160,474A CA160474A CA993938A CA 993938 A CA993938 A CA 993938A CA 160474 A CA160474 A CA 160474A CA 993938 A CA993938 A CA 993938A
Authority
CA
Canada
Prior art keywords
ray tube
emitting coating
focusing cup
focusing
cup
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
CA160,474A
Other languages
English (en)
Other versions
CA160474S (en
Inventor
Roy F. Kasten
Zed J. Atlee
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.)
Philips Nuclear Medicine Inc
Original Assignee
Picker Corp
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 Picker Corp filed Critical Picker Corp
Application granted granted Critical
Publication of CA993938A publication Critical patent/CA993938A/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
    • H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
    • 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
CA160,474A 1972-08-30 1973-01-03 X-ray tube having focusing cup with non-emitting coating Expired CA993938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28473572A 1972-08-30 1972-08-30

Publications (1)

Publication Number Publication Date
CA993938A true CA993938A (en) 1976-07-27

Family

ID=23091330

Family Applications (1)

Application Number Title Priority Date Filing Date
CA160,474A Expired CA993938A (en) 1972-08-30 1973-01-03 X-ray tube having focusing cup with non-emitting coating

Country Status (6)

Country Link
US (1) US3783323A (ru)
JP (1) JPS4960882A (ru)
CA (1) CA993938A (ru)
DE (1) DE2336408A1 (ru)
FR (1) FR2198260B3 (ru)
NL (1) NL7301331A (ru)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2658533C2 (de) * 1976-12-23 1987-02-26 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur Darstellung von Körperlängsschichten
IL70210A (en) * 1982-11-23 1987-10-20 Elscint Ltd X-ray tube with adjustable focal spot
DE3426623A1 (de) * 1984-07-19 1986-01-30 Scanray A/S, Kopenhagen Roentgenroehre
US6771737B2 (en) * 2001-07-12 2004-08-03 Medtronic Ave, Inc. X-ray catheter with miniature emitter and focusing cup
BR112014028913A2 (pt) * 2012-05-22 2017-06-27 Koninklijke Philips Nv cátodo para um tubo de raios x, tubo de raios x, sistema para imagens de raios x, e método para a montagem de um cátodo para um tubo de raios x
WO2015114917A1 (ja) * 2014-01-29 2015-08-06 株式会社島津製作所 金属電極、それを用いた電子銃、電子管並びにｘ線管
CN117174556A (zh) * 2019-12-26 2023-12-05 上海联影医疗科技股份有限公司 X射线管、医疗成像设备及x射线管制造方法

Also Published As

Publication number Publication date
FR2198260B3 (ru) 1976-01-30
US3783323A (en) 1974-01-01
JPS4960882A (ru) 1974-06-13
DE2336408A1 (de) 1974-03-14
NL7301331A (ru) 1974-03-04
FR2198260A1 (ru) 1974-03-29

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