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

Improvements in or relating to x-ray tubes

Info

Publication number
GB230183A
GB230183A GB30741/23A GB3074123A GB230183A GB 230183 A GB230183 A GB 230183A GB 30741/23 A GB30741/23 A GB 30741/23A 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
cathode
ionization
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
GB30741/23A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB30741/23A priority Critical patent/GB230183A/en
Publication of GB230183A publication Critical patent/GB230183A/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
    • H01J35/20—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
    • 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
    • H01J35/064—Details of the emitter, e.g. material or structure

Landscapes

  • X-Ray Techniques (AREA)

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.
GB30741/23A 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
GB30741/23A 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
GB30741/23A 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
GB30741/23A 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 Process for making a high field emission tip cathode
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 Process for making a high field emission tip cathode
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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