US3377504A - X-ray image intensifier tube with magnetically shielding mounting sleeve secured to envelope - Google Patents

X-ray image intensifier tube with magnetically shielding mounting sleeve secured to envelope Download PDF

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Publication number
US3377504A
US3377504A US466738A US46673865A US3377504A US 3377504 A US3377504 A US 3377504A US 466738 A US466738 A US 466738A US 46673865 A US46673865 A US 46673865A US 3377504 A US3377504 A US 3377504A
Authority
US
United States
Prior art keywords
ray image
image intensifier
intensifier tube
tube
sleeve
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
US466738A
Other languages
English (en)
Inventor
Rebicek Miroslav
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.)
Chirana Praha np
Original Assignee
Chirana Praha np
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 Chirana Praha np filed Critical Chirana Praha np
Application granted granted Critical
Publication of US3377504A publication Critical patent/US3377504A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02—Viewing or reading apparatus
    • G02B27/022—Viewing apparatus
    • G02B27/023—Viewing apparatus for viewing X-ray images using image converters, e.g. radioscopes
    • 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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/867—Means associated with the outside of the vessel for shielding, e.g. magnetic shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
    • H01J5/12—Double-wall vessels or containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2231/00—Cathode ray tubes or electron beam tubes
    • H01J2231/50—Imaging and conversion tubes
    • H01J2231/50005—Imaging and conversion tubes characterised by form of illumination
    • H01J2231/5001—Photons
    • H01J2231/50031—High energy photons
    • H01J2231/50036—X-rays

Definitions

  • the invention relates to a supporting arrangement for an X-ray image intensifier tube, enabling exact adjustment of the position of the tube.
  • the present invention eliminates the referred to disadvantages by the fact that the tube is permanenaly centrical and planparallel in an adjusting sleeve.
  • the tube is delivered with the adjusting sleeve as an exchangeable spare unit to replace an X-ray image intensifier tube. There is no need any longer for adjusting the conditions of the X-ray working position by means of special instruments.
  • FIG. 1 is a longitudinal sectional view of a mount- ICC ing structure according to the invention for an X-ray image intensifier tube
  • FIG. 2 is an elevation ofthe unit of FIG. 1 within a housing.
  • An adjusting sleeve 14 consists of a cylindrical part 1, made from metal, plastics, or from a combination of both of these materials.
  • the sleeve is lined on its inside with a magnetically shielding material (not shown), e.g., permalloy.
  • a magnetically shielding material not shown
  • fixing members 2, 3 At the ends and on the outer face of the sleeve are fixing members 2, 3 by means of which the adjusting sleeve bears precisely against the internal walls of a housing.
  • the external contour of adjusting sleeve is similar to that of the internal contour of the housing of an X-ray image intensifier tube 7.
  • the material 8 may be, for instance,
  • the axis of sleeve 14 is designated 5.
  • the adjustment of the X-ray image intensifier tube 7 in the adjusting sleeve 14 is carried out in such a way that the adjusting sleeve with the X-ray image intensifier tube 7 is pushed into a housing 9 (see FIG. 2) for centering and focusing.
  • the gap between the adjusting sleeve, 14 and the bulb of the X-ray image intensifier tube 7 is filled with non-hygroscopic material 8 resistant to X-ray radiation and which ensures a mechanically solid, yet a sufficiently elastic joint between the adjusting sleeve and the X-ray image intensifier tube.
  • the adjusting sleeve 14 together with the X-ray image tube 7 form after adjustment and, for instance curing of the material 8 a solid unit which may be replaced in whichever image intensifier housing of the same type without any additional adjustment on the working position.
  • the replacement is fast, simple and the X-ray image intensifier tube is precisely adjusted.
  • the present invention also includes a method of adjusting the position of an X-ray intensifier tube within a housing by adjusting the position of the tube in the adjusting sleeve.
  • a mounting unit for an X-ray image intensifier tube said tube having an output screen in its interior and a cylindrical wall portion, comprising (a) an adjusting sleeve, a portion of said sleeve being cylindrical and surrounding said cylindrical wall portion, there being an annular gap between said cylindrical wall portion and said cylindrical sleeve portion,
  • said unit-fix- FOREIGN PATENTS ing means including two spacedly arranged rings. 10 1,154,880 9/1963 Germany.
  • said filler being JAMES W LAWRENCE Primary Examiner constituted by a non-hygroscopic material resistant to X-ray radiation, and solid yet sufficiently elastic.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
US466738A 1964-06-27 1965-06-24 X-ray image intensifier tube with magnetically shielding mounting sleeve secured to envelope Expired - Lifetime US3377504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS371964 1964-06-27

Publications (1)

Publication Number Publication Date
US3377504A true US3377504A (en) 1968-04-09

Family

ID=5378067

Family Applications (1)

Application Number Title Priority Date Filing Date
US466738A Expired - Lifetime US3377504A (en) 1964-06-27 1965-06-24 X-ray image intensifier tube with magnetically shielding mounting sleeve secured to envelope

Country Status (4)

Country Link
US (1) US3377504A (forum.php)
GB (1) GB1069586A (forum.php)
NL (1) NL6508301A (forum.php)
SE (1) SE313127B (forum.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4220890A (en) * 1977-03-28 1980-09-02 U.S. Philips Corporation Magnetic shielding for an X-ray image intensifier tube

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2343630A (en) * 1942-04-25 1944-03-07 Du Mont Allen B Lab Inc Shield for cathode ray tubes
US2871372A (en) * 1954-12-16 1959-01-27 Siemens Ag Albis Infrared image converter apparatus
US3013117A (en) * 1957-11-22 1961-12-12 Philco Corp Mounting structure
DE1154880B (de) * 1960-07-01 1963-09-26 Telefunken Patent Vorrichtung zur Halterung und Zentrierung einer Kathodenstrahlroehre
US3278682A (en) * 1963-04-03 1966-10-11 Philips Corp Implosion-resistant cathode-ray tube with mounting brackets
US3299316A (en) * 1963-08-28 1967-01-17 Hughes Aircraft Co Voltage divider network encapsulated in the housing of a storage tube

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2343630A (en) * 1942-04-25 1944-03-07 Du Mont Allen B Lab Inc Shield for cathode ray tubes
US2871372A (en) * 1954-12-16 1959-01-27 Siemens Ag Albis Infrared image converter apparatus
US3013117A (en) * 1957-11-22 1961-12-12 Philco Corp Mounting structure
DE1154880B (de) * 1960-07-01 1963-09-26 Telefunken Patent Vorrichtung zur Halterung und Zentrierung einer Kathodenstrahlroehre
US3278682A (en) * 1963-04-03 1966-10-11 Philips Corp Implosion-resistant cathode-ray tube with mounting brackets
US3299316A (en) * 1963-08-28 1967-01-17 Hughes Aircraft Co Voltage divider network encapsulated in the housing of a storage tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4220890A (en) * 1977-03-28 1980-09-02 U.S. Philips Corporation Magnetic shielding for an X-ray image intensifier tube

Also Published As

Publication number Publication date
NL6508301A (forum.php) 1965-12-28
GB1069586A (en) 1967-05-17
SE313127B (forum.php) 1969-08-04

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