US3124710A - X-ray tubes - Google Patents

X-ray tubes Download PDF

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Publication number
US3124710A
US3124710A US3124710DA US3124710A US 3124710 A US3124710 A US 3124710A US 3124710D A US3124710D A US 3124710DA US 3124710 A US3124710 A US 3124710A
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US
United States
Prior art keywords
window
target surface
end portion
radiation
filament
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 - Lifetime
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English (en)
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 date
US case filed in New York Southern District Court litigation Critical https://portal.unifiedpatents.com/litigation/New%20York%20Southern%20District%20Court/case/1%3A10-cv-01141 Source: District Court Jurisdiction: New York Southern District Court "Unified Patents Litigation Data" by Unified Patents is licensed under a Creative Commons Attribution 4.0 International License.
Application granted granted Critical
Publication of US3124710A publication Critical patent/US3124710A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01J35/00—X-ray tubes
    • H01J35/02—Details

Definitions

  • FIG. 2 is a sectioned side elevation of the X-ray tube shown in FIG. 1.
  • An X-ray tube comprising an evacuated envelope consisting of a cylindrical member having a re-entrant end portion and a flattened end portion providing two substantially parallel walls, an anode providing a target surface which forms part of one of said walls, a window permeable to X-radiation and forming part of the other of said walls and located in alignment with said target surface, a cathode assembly comprising a metallic body having a recess formed therein, an opening located within said recess and an electron emitting filament insulatingly supported within the recess adjacent the periphery of the opening, the major extension of said filament lying in a plane parallel to the longitudinal axis of the cylindrical member and said assembly being supported within said flattened end portion between said window and said target surface by said re-entrant end portion such that X-radiation produced at the target surface in response to bombardment thereof with electrons from said filament, passes through said opening to reach said window.

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  • X-Ray Techniques (AREA)
US3124710D 1960-03-17 X-ray tubes Expired - Lifetime US3124710A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9503/60A GB918664A (en) 1960-03-17 1960-03-17 Improvements in and relating to x-ray tubes

Publications (1)

Publication Number Publication Date
US3124710A true US3124710A (en) 1964-03-10

Family

ID=9873217

Family Applications (1)

Application Number Title Priority Date Filing Date
US3124710D Expired - Lifetime US3124710A (en) 1960-03-17 X-ray tubes

Country Status (5)

Country Link
US (1) US3124710A (enrdf_load_stackoverflow)
CH (1) CH384092A (enrdf_load_stackoverflow)
DE (1) DE1148026B (enrdf_load_stackoverflow)
GB (1) GB918664A (enrdf_load_stackoverflow)
NL (1) NL262454A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502925A (en) * 1968-03-14 1970-03-24 Du Pont High intensity x-ray source
EP0491471A3 (en) * 1990-11-21 1992-09-30 Varian Associates, Inc. High power x-ray tube
WO2011105035A3 (en) * 2010-02-23 2012-02-02 Canon Kabushiki Kaisha Radioactive ray generating apparatus and radioactive ray imaging system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1949347A (en) * 1924-06-04 1934-02-27 Philips Nv Electric discharge tube
US2148000A (en) * 1935-08-13 1939-02-21 Philips Nv X-ray tube
US2250963A (en) * 1939-11-21 1941-07-29 Mutscheller Arthur X-ray tube
US2569872A (en) * 1949-12-24 1951-10-02 Machlett Lab Inc Electron discharge tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL14471C (enrdf_load_stackoverflow) * 1922-12-06 1926-03-15
DE461847C (de) * 1926-01-02 1928-07-02 Phoenix Roentgenroehrenfabrike Roentgenroehre
DE577796C (de) * 1929-01-16 1933-06-03 C H F Mueller Akt Ges Gluehkathodenroentgenroehre mit mehreren getrennt voneinander angeordneten, mit Sammelvorrichtungen versehenen Kathoden, deren Elektronenbuendel auf ein und dieselbe Antikathodenflaeche auftreffen
US1942007A (en) * 1930-01-09 1934-01-02 Westinghouse Lamp Co Soft x-ray tube
DE619748C (de) * 1931-08-08 1935-10-10 Hugo Seemann Dr Gluehkathodenroentgenroehre mit einer auf Kathodenpotential befindlichen, ein Fenster fuer den Austritt der Roentgenstrahlen besitzenden metallischen Aussenwand
US2310567A (en) * 1941-01-08 1943-02-09 Gen Electric X Ray Corp X-ray apparatus and method of construction
US2356645A (en) * 1943-02-08 1944-08-22 Gen Electric X Ray Corp X-ray tube
NL92553C (enrdf_load_stackoverflow) * 1950-12-26

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1949347A (en) * 1924-06-04 1934-02-27 Philips Nv Electric discharge tube
US2148000A (en) * 1935-08-13 1939-02-21 Philips Nv X-ray tube
US2250963A (en) * 1939-11-21 1941-07-29 Mutscheller Arthur X-ray tube
US2569872A (en) * 1949-12-24 1951-10-02 Machlett Lab Inc Electron discharge tube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502925A (en) * 1968-03-14 1970-03-24 Du Pont High intensity x-ray source
EP0491471A3 (en) * 1990-11-21 1992-09-30 Varian Associates, Inc. High power x-ray tube
WO2011105035A3 (en) * 2010-02-23 2012-02-02 Canon Kabushiki Kaisha Radioactive ray generating apparatus and radioactive ray imaging system
US9208987B2 (en) 2010-02-23 2015-12-08 Canon Kabushiki Kaisha Radioactive ray generating apparatus and radioactive ray imaging system

Also Published As

Publication number Publication date
GB918664A (en) 1963-02-13
NL262454A (enrdf_load_stackoverflow)
CH384092A (de) 1964-11-15
DE1148026B (de) 1963-05-02

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