GB230183A - Improvements in or relating to x-ray tubes - Google Patents

Improvements in or relating to x-ray tubes

Info

Publication number
GB230183A
GB230183A GB3074123A GB3074123A GB230183A GB 230183 A GB230183 A GB 230183A GB 3074123 A GB3074123 A GB 3074123A GB 3074123 A GB3074123 A GB 3074123A GB 230183 A GB230183 A GB 230183A
Authority
GB
United Kingdom
Prior art keywords
calcium
ray tubes
relating
improvements
cathode
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
GB3074123A
Original Assignee
Ruben Samuel
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 Ruben Samuel filed Critical Ruben Samuel
Priority to GB3074123A priority Critical patent/GB230183A/en
Publication of GB230183A publication Critical patent/GB230183A/en
Application status is Expired legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00X-ray tubes
    • H01J35/02Details
    • H01J35/20Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00X-ray tubes
    • H01J35/02Details
    • H01J35/04Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/06Cathodes

Abstract

230,183. Ruben, S. Dec. 6, 1923. R÷ntgen-ray tubes. -An electrode such as a cathode is composed! partly of metallic calcium. A pointed cathode 2 consists of a conducting crystalline compound such as silica carbide, and a strip 11 of calcium is attached to the support. When ionization occurs calcium is vaporized and gas is absorbed. The anode 3 is of copper with a refractory target 3a. A resistance may be connected in series with the tube to prevent a heavy discharge due to ionization.
GB3074123A 1923-12-06 1923-12-06 Improvements in or relating to x-ray tubes Expired GB230183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3074123A GB230183A (en) 1923-12-06 1923-12-06 Improvements in or relating to x-ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3074123A GB230183A (en) 1923-12-06 1923-12-06 Improvements in or relating to x-ray tubes

Publications (1)

Publication Number Publication Date
GB230183A true GB230183A (en) 1925-03-06

Family

ID=10312402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3074123A Expired GB230183A (en) 1923-12-06 1923-12-06 Improvements in or relating to x-ray tubes

Country Status (1)

Country Link
GB (1) GB230183A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200442B (en) * 1961-11-08 1965-09-09 Csf A process for producing a peak cathode field emission high
WO1999005694A1 (en) * 1997-07-25 1999-02-04 Xrt Corp. Miniature x-ray device having cold cathode
WO1999009580A1 (en) * 1997-08-18 1999-02-25 Xrt Corp. Cathode from getter material
US6095966A (en) 1997-02-21 2000-08-01 Xrt Corp. X-ray device having a dilation structure for delivering localized radiation to an interior of a body
US6289079B1 (en) 1999-03-23 2001-09-11 Medtronic Ave, Inc. X-ray device and deposition process for manufacture
US6353658B1 (en) 1999-09-08 2002-03-05 The Regents Of The University Of California Miniature x-ray source
US6377846B1 (en) 1997-02-21 2002-04-23 Medtronic Ave, Inc. Device for delivering localized x-ray radiation and method of manufacture
US6464625B2 (en) 1999-06-23 2002-10-15 Robert A. Ganz Therapeutic method and apparatus for debilitating or killing microorganisms within the body

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200442B (en) * 1961-11-08 1965-09-09 Csf A process for producing a peak cathode field emission high
US6095966A (en) 1997-02-21 2000-08-01 Xrt Corp. X-ray device having a dilation structure for delivering localized radiation to an interior of a body
US6377846B1 (en) 1997-02-21 2002-04-23 Medtronic Ave, Inc. Device for delivering localized x-ray radiation and method of manufacture
WO1999005694A1 (en) * 1997-07-25 1999-02-04 Xrt Corp. Miniature x-ray device having cold cathode
WO1999009580A1 (en) * 1997-08-18 1999-02-25 Xrt Corp. Cathode from getter material
US6289079B1 (en) 1999-03-23 2001-09-11 Medtronic Ave, Inc. X-ray device and deposition process for manufacture
US6464625B2 (en) 1999-06-23 2002-10-15 Robert A. Ganz Therapeutic method and apparatus for debilitating or killing microorganisms within the body
US6491618B1 (en) 1999-06-23 2002-12-10 Robert A. Ganz Apparatus and method for debilitating or killing microorganisms within the body
US6890346B2 (en) 1999-06-23 2005-05-10 Lumerx Inc. Apparatus and method for debilitating or killing microorganisms within the body
US6353658B1 (en) 1999-09-08 2002-03-05 The Regents Of The University Of California Miniature x-ray source

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