NL69809C - - Google Patents

Info

Publication number
NL69809C
NL69809C NL69809DA NL69809C NL 69809 C NL69809 C NL 69809C NL 69809D A NL69809D A NL 69809DA NL 69809 C NL69809 C NL 69809C
Authority
NL
Netherlands
Application number
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.)
Publication of NL69809C publication Critical patent/NL69809C/xx

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
NL69809D 1946-05-09 NL69809C (xx)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL69809C true NL69809C (xx)

Family

ID=33548389

Family Applications (1)

Application Number Title Priority Date Filing Date
NL69809D NL69809C (xx) 1946-05-09

Country Status (7)

Country Link
US (1) US2597817A (xx)
BE (1) BE469098A (xx)
CH (1) CH261755A (xx)
FR (2) FR944917A (xx)
GB (2) GB651507A (xx)
NL (1) NL69809C (xx)
SE (1) SE122892C1 (xx)

Families Citing this family (18)

* 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 (de) * 1952-05-24 1955-08-04 Siemens Reiniger Werke Ag Elektrische Entladungsroehre mit Elektrodenrichtglied
US2866113A (en) * 1952-10-07 1958-12-23 Cosslett Vernon Ellis Fine focus x-ray tubes
DE1027332B (de) * 1953-08-31 1958-04-03 Siemens Ag Metallglasverschmelzung fuer elektrische Entladungsgefaesse, wie Stromrichtergefaesse od. dgl.
DE1097041B (de) * 1956-09-19 1961-01-12 Emi Ltd Justiervorrichtung zur Zentrierung einer Kathode einer elektrischen Entladungsanordnung fuer hoechste Frequenzen
CH355225A (de) * 1958-01-22 1961-06-30 Foerderung Forschung Gmbh Verfahren und Einrichtung zum Kontrollieren und Korrigieren der Lage des durch einen Kathodenstrahl erzeugten Brennflecks auf der Antikathode einer Röntgenröhre
GB872579A (en) * 1958-10-15 1961-07-12 Ass Elect Ind Improvements relating to electron gun assemblies
NL126562C (xx) * 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 (de) * 1981-12-23 1983-06-30 Siemens AG, 1000 Berlin und 8000 München Verfahren und vorrichtung zur optimierung der emission einer roentgenroehre
DK147778C (da) * 1981-12-29 1985-05-20 Andrex Radiation Prod As Roentgenstraalegenerator
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
US10068741B2 (en) * 2014-12-25 2018-09-04 Meidensha Corporation Field emission device and reforming treatment method
DE102015220754B3 (de) * 2015-10-23 2017-02-09 Siemens Healthcare Gmbh Verfahren und Messeinrichtung zur Ermittlung des Elektrodenabstands von Röntgenröhren
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 (de) * 1919-12-12 1924-02-19 Julius Edgar Lilienfeld Dr Hochvakuumroehre, insbesondere Roentgenroehre, Ventilroehre, Senderoehre oder Verstaerkungsroehre
DE586817C (de) * 1930-12-11 1933-10-26 Radiologie Akt Ges Verfahren zur Brennfleckregelung fuer Roentgenroehren durch Veraenderung der emittierenden Gluehkathodenflaeche
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 (fr) * 1936-06-03 1937-09-27 Radiologie Cie Gle Perfectionnements aux ampoules radiogènes
GB495707A (en) * 1937-04-17 1938-11-17 Frederick Hermes Nicoll Improvements in or relating to focussing systems for use in electric discharge tubes
NL68166C (xx) * 1939-12-02
BE475842A (xx) * 1942-04-25
US2350269A (en) * 1942-06-15 1944-05-30 Gen Electric X Ray Corp X-ray tube

Also Published As

Publication number Publication date
BE469098A (xx)
GB651507A (en) 1951-04-04
US2597817A (en) 1952-05-20
FR56195E (fr) 1952-09-18
SE122892C1 (xx) 1948-10-05
FR944917A (fr) 1949-04-20
CH261755A (fr) 1949-05-31
GB651455A (en) 1951-04-04

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