US1954709A - X-ray tube - Google Patents

X-ray tube Download PDF

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Publication number
US1954709A
US1954709A US445067A US44506730A US1954709A US 1954709 A US1954709 A US 1954709A US 445067 A US445067 A US 445067A US 44506730 A US44506730 A US 44506730A US 1954709 A US1954709 A US 1954709A
Authority
US
United States
Prior art keywords
envelope
tube
sleeve
glass
metallic
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
Application number
US445067A
Other languages
English (en)
Inventor
Niclassen Hans
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.)
CHF Mueller AG
Original Assignee
CHF Mueller AG
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 CHF Mueller AG filed Critical CHF Mueller AG
Application granted granted Critical
Publication of US1954709A publication Critical patent/US1954709A/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
    • H01J35/16—Vessels; Containers; Shields associated therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/16—Vessels
    • H01J2235/165—Shielding arrangements
    • H01J2235/168—Shielding arrangements against charged particles

Definitions

  • My invention relates to X-ray tubes.
  • X-ray tubes having metallic median portion have advantages over X-ray tubes in which the wall consists exclusively of glass in that the metallic median part provides a support for the body of the tube. While heretofore, both ends of the metal part having the glass tubes connected thereto were used for mounting the tube, metal tubes are mounted at a single point coinciding with the centre of gravity of the tube, so that the tube can be more readily moved thus facilitatingits operation by the physician.
  • the object of the present improvements is to provide a tube in which this objection is obviated.
  • a glass tube provided with an outer metallic sleeve is subject to disruption of the glass wall, because the emitted electrons charge the inner part of the glass wall, which results in a high dielectric strain of the glass wall.
  • this danger is obviated by screening the space subject to the charge or the median portion of the glass wall impinged upon by the electrons.
  • a metallic screen may be provided, for example, by conductive bodies placed within the tube, or by coating the glass wall itself with metal by cathode disintegration or by galvanic methods.
  • the said metallic coating may be electrically connected with the outer metallic sleeve to which the supporting means is attached, so that the charge caused by the said electrons is prevented, and there is no strain of the glass wall.
  • a glass envelope 1 which preferably embodies a cylindrical outer wall, there are an anode 2, and a cathode 3 which are supported in re-entrant portions of the envelope, extending from opposite ends of the tube.
  • a charging of the glass within the tube I provide improvements in Germany April 19, 1929 ductive body 4 located within the tube may be i electrically connected with the metallic sleeve 5 by a wire 6.
  • An X-ray tube comprising electrode members between which during the operation of the tube a high potential difference occurs, a glass envelope having a single walled median portion enclosing the operative parts of said members, the Wall of said envelope extending from one member to the other and serving to insulate the same, an external metallic supporting sleeve surrounding the median portion of said envelope and conductive screening means within the envelope opposite said sleeve and electrically connected thereto.
  • An X-ray tube comprising electrode members between which during the operation of the tube a high potential difierence occurs, a glass envelope enclosing the operative parts of said members, the wall of said envelope extending from one member to the other and serving to insulate the same, an external metallic supporting sleeve surrounding the median portion of said envelope and extending for only a small part of the length thereof and a conductive coating upon the inner surface of said envelope opposite said sleeve.
  • An X-ray tube comprising an envelope, electrodes arranged within and mechanically connected by the wall of the envelope, a relatively short, rigid supporting sleeve of substantial thickness surrounding and engaging the envelope wall midway the ends thereof, supporting means cooperating with said sleeve and conductive screening means within the envelope opposite said sleeve and surrounding the operative parts of the electrodes.
  • An X-ray tube comprising a glass envelope, an anode and a cathode within said envelope, a metallic supporting sleeve of substantial thickness and provided with an aperture for the -rays, said sleeve surrounding the envelope at the median portion thereof, supporting means 2 for the tube cooperating with said sleeve and a second metallic sleeve within the envelope opposite the first-mentioned sleeve and surrounding the operative parts of the anode and cathode.
  • An X-ray tube comprising a glass envelope, an anode and a cathode within said envelope, a metallic supporting sleeve of substantial thickness surrounding the envelope at the median portion thereof, supporting means for the tube cooperating with said sleeve and a second metal lic sleeve within the envelope opposite the first mentioned sleeve and extending longitudinally of the tube beyond the operative parts of the anode and cathode.
  • An electric discharge tube comprising an envelope having a single-walled substantially cylindrical median portion and re-entrant portions at the ends thereof, the substantially cylindrical portion of said envelope extending from one of said re-entrant portions to the other re-entrant portion, an anode supported by one of said reentrant portions of the envelope, a cathode supported by the other re-entrant portion, a conductive screen inside of said envelope surrounding the operative parts of said anode and said cathode and an external conducting sleeve on the outside of said envelope opposite said inside screen and conductively connected thereto.
  • An X-ray tube comprising electrode members between which during the operation of the tube a high potential difference occurs, a glass envelope having a single-Walled median portion enclosing the operative parts of said members, the wall of said envelope extending from one member to the other and serving to insulate the same, an external metallic supporting sleeve surrounding the median portion of said envelope, said envelope extending for a considerable distance beyond both ends of said sleeve, and conductive screening means within the envelope opposite said sleeve.
  • An X-ray tube comprising a glass envelope having a single cylindrical outer wall at the median portion of the tube, spaced electrodes arranged within said envelope and inner and outer metallic sleeves adjacent the wall of said envelope at the median portion thereof, said sleeves extending longitudinally of the tube beyond the operative parts of the electrodes and said envelope extending a substantial distance.

Landscapes

  • X-Ray Techniques (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
US445067A 1929-04-19 1930-04-17 X-ray tube Expired - Lifetime US1954709A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1954709X 1929-04-19

Publications (1)

Publication Number Publication Date
US1954709A true US1954709A (en) 1934-04-10

Family

ID=7780357

Family Applications (1)

Application Number Title Priority Date Filing Date
US445067A Expired - Lifetime US1954709A (en) 1929-04-19 1930-04-17 X-ray tube

Country Status (3)

Country Link
US (1) US1954709A (fr)
FR (1) FR694059A (fr)
GB (1) GB350133A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516663A (en) * 1947-09-20 1950-07-25 Gen Electric X Ray Corp Conductive coating on glass
US2952790A (en) * 1957-07-15 1960-09-13 Raytheon Co X-ray tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516663A (en) * 1947-09-20 1950-07-25 Gen Electric X Ray Corp Conductive coating on glass
US2952790A (en) * 1957-07-15 1960-09-13 Raytheon Co X-ray tubes

Also Published As

Publication number Publication date
FR694059A (fr) 1930-11-28
GB350133A (fr) 1931-06-11

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