FR944917A - Improvement in X-ray tubes - Google Patents

Improvement in X-ray tubes

Info

Publication number
FR944917A
FR944917A FR944917DA FR944917A FR 944917 A FR944917 A FR 944917A FR 944917D A FR944917D A FR 944917DA FR 944917 A FR944917 A FR 944917A
Authority
FR
France
Prior art keywords
improvement
ray tubes
tubes
ray
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
Other languages
French (fr)
Inventor
Maurice Poittevin
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 filed Critical
Application granted granted Critical
Publication of FR944917A publication Critical patent/FR944917A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current
    • 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
FR944917D 1946-05-09 1945-12-14 Improvement in X-ray tubes Expired FR944917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR944917T 1946-05-09

Publications (1)

Publication Number Publication Date
FR944917A true FR944917A (en) 1949-04-20

Family

ID=33548389

Family Applications (2)

Application Number Title Priority Date Filing Date
FR944917D Expired FR944917A (en) 1946-05-09 1945-12-14 Improvement in X-ray tubes
FR56195D Expired FR56195E (en) 1946-05-09 1946-05-09 Improvement in X-ray tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR56195D Expired FR56195E (en) 1946-05-09 1946-05-09 Improvement in X-ray tubes

Country Status (7)

Country Link
US (1) US2597817A (en)
BE (1) BE469098A (en)
CH (1) CH261755A (en)
FR (2) FR944917A (en)
GB (2) GB651455A (en)
NL (1) NL69809C (en)
SE (1) SE122892C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083198A1 (en) * 1981-12-29 1983-07-06 Andrex Radiation Products A/S An X-ray generator device

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103591A (en) * 1963-09-10 Radiographic systems and method
DE931304C (en) * 1952-05-24 1955-08-04 Siemens Reiniger Werke Ag Electric discharge tubes with electrode straightening member
US2866113A (en) * 1952-10-07 1958-12-23 Cosslett Vernon Ellis Fine focus x-ray tubes
DE1027332B (en) * 1953-08-31 1958-04-03 Siemens Ag Metal-glass fusion for electrical discharge vessels, such as converter vessels or the like.
DE1097041B (en) * 1956-09-19 1961-01-12 Emi Ltd Adjustment device for centering a cathode of an electrical discharge arrangement for the highest frequencies
CH355225A (en) * 1958-01-22 1961-06-30 Foerderung Forschung Gmbh Method and device for controlling and correcting the position of the focal spot generated by a cathode ray on the anti-cathode of an X-ray tube
GB872579A (en) * 1958-10-15 1961-07-12 Ass Elect Ind Improvements relating to electron gun assemblies
NL252415A (en) * 1959-06-11
US3179832A (en) * 1960-01-12 1965-04-20 Field Emission Corp Temperature enhanced field emission x-ray tube
US3303372A (en) * 1964-08-20 1967-02-07 Dunlee Corp X-ray generator with a knife edged cold cathode emitter
DE3151229A1 (en) * 1981-12-23 1983-06-30 Siemens AG, 1000 Berlin und 8000 München Method and device for optimising the emission of an X-ray tube
US4698835A (en) * 1984-05-31 1987-10-06 Kabushiki Kaisha Toshiba X-ray tube apparatus
US4868842A (en) * 1987-03-19 1989-09-19 Siemens Medical Systems, Inc. Cathode cup improvement
US6356619B1 (en) * 2000-06-02 2002-03-12 General Electric Company Varying x-ray tube focal spot dimensions to normalize impact temperature
WO2016104484A1 (en) * 2014-12-25 2016-06-30 株式会社明電舎 Field emission device and reforming treatment method
DE102015220754B3 (en) * 2015-10-23 2017-02-09 Siemens Healthcare Gmbh Method and measuring device for determining the electrode spacing of x-ray tubes
EP3696845A1 (en) * 2019-02-12 2020-08-19 Malvern Panalytical B.V. X-ray tube and x-ray analysis system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1310714A (en) * 1919-07-22 X-ray tube
US793112A (en) * 1903-10-06 1905-06-27 Rome V Wagner Vacuum-tube.
US1174044A (en) * 1915-05-05 1916-03-07 Elof Benson X-ray apparatus.
DE390479C (en) * 1919-12-12 1924-02-19 Julius Edgar Lilienfeld Dr High vacuum pipes, in particular Roentgen pipes, valve pipes, transmitter pipes or reinforcement pipes
DE586817C (en) * 1930-12-11 1933-10-26 Radiologie Akt Ges Method for regulating the focal point for X-ray tubes by changing the emitting glow cathode surface
GB419727A (en) * 1932-04-22 1934-11-19 Loewe Opta Gmbh A braun tube for oscillographic and television purposes
US2130020A (en) * 1934-03-13 1938-09-13 Harry B Mceuen Cathode filament control for x-ray tubes
US2157718A (en) * 1935-02-26 1939-05-09 Mutscheller Arthur X-ray tube
FR818476A (en) * 1936-06-03 1937-09-27 Radiologie Cie Gle Improvements to X-ray bulbs
GB495707A (en) * 1937-04-17 1938-11-17 Frederick Hermes Nicoll Improvements in or relating to focussing systems for use in electric discharge tubes
BE444006A (en) * 1939-12-02
BE475842A (en) * 1942-04-25
US2350269A (en) * 1942-06-15 1944-05-30 Gen Electric X Ray Corp X-ray tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083198A1 (en) * 1981-12-29 1983-07-06 Andrex Radiation Products A/S An X-ray generator device
US4563769A (en) * 1981-12-29 1986-01-07 Andrex Radiation Products A/S X-Ray generator device

Also Published As

Publication number Publication date
SE122892C1 (en) 1948-10-05
FR56195E (en) 1952-09-18
CH261755A (en) 1949-05-31
BE469098A (en)
GB651455A (en) 1951-04-04
NL69809C (en)
US2597817A (en) 1952-05-20
GB651507A (en) 1951-04-04

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