GB703387A - Improvements relating to x-ray tubes - Google Patents

Improvements relating to x-ray tubes

Info

Publication number
GB703387A
GB703387A GB4303/52A GB430352A GB703387A GB 703387 A GB703387 A GB 703387A GB 4303/52 A GB4303/52 A GB 4303/52A GB 430352 A GB430352 A GB 430352A GB 703387 A GB703387 A GB 703387A
Authority
GB
United Kingdom
Prior art keywords
slots
cathode
ray tubes
feb
anode
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
GB4303/52A
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 GB703387A publication Critical patent/GB703387A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
    • 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

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

703,387. X-ray tubes. LICENTIA PATENTVERWALTUNGS GES. Feb. 18, 1952 [Feb: 16, 1951], No. 4303/52. Class 39(1) In an X-ray tube, there are interposed between a helical cathode 1 and anode 4 two intermediate electrodes 2, 3, having slots parallel to the cathode, and forming an electrostatic lens system; their disposition and potentials are such that chromatic aberration is substantially eliminated in a plane normal to the length of the slots, and is large enough in the plane containing the slots to ensure that in the linear image on the anode, the images of the separate cathode turns overlap. Suitable electrode potentials and distances are given and also deduced from theoretical considerations.
GB4303/52A 1951-02-16 1952-02-18 Improvements relating to x-ray tubes Expired GB703387A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE299077X 1951-02-16

Publications (1)

Publication Number Publication Date
GB703387A true GB703387A (en) 1954-02-03

Family

ID=6091175

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4303/52A Expired GB703387A (en) 1951-02-16 1952-02-18 Improvements relating to x-ray tubes

Country Status (3)

Country Link
CH (1) CH299077A (en)
FR (1) FR1050880A (en)
GB (1) GB703387A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074769B (en) * 1954-06-01 1960-02-04 Centre National De La Recherche Scientifique, Paris X-ray tube with electrostatic focusing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074769B (en) * 1954-06-01 1960-02-04 Centre National De La Recherche Scientifique, Paris X-ray tube with electrostatic focusing

Also Published As

Publication number Publication date
FR1050880A (en) 1954-01-12
CH299077A (en) 1954-05-31

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