GB730803A - Improvements in and relating to x-ray tubes - Google Patents

Improvements in and relating to x-ray tubes

Info

Publication number
GB730803A
GB730803A GB26968/52A GB2696852A GB730803A GB 730803 A GB730803 A GB 730803A GB 26968/52 A GB26968/52 A GB 26968/52A GB 2696852 A GB2696852 A GB 2696852A GB 730803 A GB730803 A GB 730803A
Authority
GB
United Kingdom
Prior art keywords
lens
ray tubes
anode
focus
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
Application number
GB26968/52A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB730803A publication Critical patent/GB730803A/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
    • H01J35/147—Spot size control

Landscapes

  • X-Ray Techniques (AREA)

Abstract

730,803. X-ray tubes. LICENTIA PATENT-VERWALTUNGS-GES. Oct. 27, 1952 [Nov. 8, 1951], No. 26968/52. Class 39 (1). A fine-focus X-ray tube has a highly-refract. ing electrostatic lens 1 in front of and close to the anode 2, producing an image of the filament in front of, at, or behind the anode, according to the lens potential. Just in front of the hairpin filament 3 is a long-focus Wehnelt cylinder 6, which ensures that all the electrons pass into the lens, and which may be connected to one of the lens electrodes. The window 8 may be of curved glass a few thousandths of a millimetre thick. Reference has been directed by the Comptroller to Specification 703,387.
GB26968/52A 1951-11-08 1952-10-27 Improvements in and relating to x-ray tubes Expired GB730803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE730803X 1951-11-08

Publications (1)

Publication Number Publication Date
GB730803A true GB730803A (en) 1955-06-01

Family

ID=6637176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26968/52A Expired GB730803A (en) 1951-11-08 1952-10-27 Improvements in and relating to x-ray tubes

Country Status (2)

Country Link
US (1) US2842694A (en)
GB (1) GB730803A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209213A (en) * 1978-04-10 1980-06-24 Warner Electric Brake & Clutch Company Brush holder and slip ring assembly
US8243876B2 (en) 2003-04-25 2012-08-14 Rapiscan Systems, Inc. X-ray scanners
US9208988B2 (en) * 2005-10-25 2015-12-08 Rapiscan Systems, Inc. Graphite backscattered electron shield for use in an X-ray tube
GB0812864D0 (en) 2008-07-15 2008-08-20 Cxr Ltd Coolign anode
GB0525593D0 (en) 2005-12-16 2006-01-25 Cxr Ltd X-ray tomography inspection systems
US10483077B2 (en) 2003-04-25 2019-11-19 Rapiscan Systems, Inc. X-ray sources having reduced electron scattering
US9046465B2 (en) 2011-02-24 2015-06-02 Rapiscan Systems, Inc. Optimization of the source firing pattern for X-ray scanning systems
GB0901338D0 (en) 2009-01-28 2009-03-11 Cxr Ltd X-Ray tube electron sources

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2112034A (en) * 1936-10-22 1938-03-22 Gen Electric Electrical discharge device
GB495707A (en) * 1937-04-17 1938-11-17 Frederick Hermes Nicoll Improvements in or relating to focussing systems for use in electric discharge tubes
DE696419C (en) * 1938-03-06 1940-09-20 Aeg X-ray tubes for hollow body fluoroscopy
NL100028C (en) * 1940-02-19 1900-01-01
BE477488A (en) * 1945-08-28
CH272088A (en) * 1947-02-11 1950-11-30 Dent Ott Walter Dr Med X-ray equipment.
US2581243A (en) * 1949-05-28 1952-01-01 Rca Corp Cathode of electron beam devices
NL73982C (en) * 1949-09-26 1954-01-15 Philips Nv X-ray generating device

Also Published As

Publication number Publication date
US2842694A (en) 1958-07-08

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