EP0361266A3 - Röntgenbildverstärker - Google Patents

Röntgenbildverstärker Download PDF

Info

Publication number
EP0361266A3
EP0361266A3 EP19890117243 EP89117243A EP0361266A3 EP 0361266 A3 EP0361266 A3 EP 0361266A3 EP 19890117243 EP19890117243 EP 19890117243 EP 89117243 A EP89117243 A EP 89117243A EP 0361266 A3 EP0361266 A3 EP 0361266A3
Authority
EP
European Patent Office
Prior art keywords
ray image
image intensifier
fluorescent screen
electrode
entrance
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.)
Withdrawn
Application number
EP19890117243
Other languages
English (en)
French (fr)
Other versions
EP0361266A2 (de
Inventor
Richard Frank
Fritz-Walter Dr. Hofmann
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0361266A2 publication Critical patent/EP0361266A2/de
Publication of EP0361266A3 publication Critical patent/EP0361266A3/de
Withdrawn legal-status Critical Current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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/62—Electrostatic lenses
    • H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
    • 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
    • H01J31/501—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output with an electrostatic electron optic system

Landscapes

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

Abstract

Ein Röntgenbildverstärker (5a) besitzt ein Elektroden­ system zum Fokussieren der beim Auftreffen von Röntgen­ strahlung auf dem Eingangsleuchtschirm (4) des Röntgen­ bildverstärkers (5a) erzeugten Elektronen auf den Ausgangsleuchtschirm (7) des Röntgenbildverstärkers (5a). Dieses Elektrodensystem soll vereinfacht sein, wobei die Anzahl der Elektroden reduziert und die Abbildungseigen­ schaften verbessert sind.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß eine Elektrode der Elektronenoptik aus elektrischem Widerstandsmaterial als Belag (15) auf einem den Mantel des Vakuumgefäßes bildenden einstückigen Elektrodenträger (14a) aufgebracht ist und daß eine Spannung an den Belag (15) gelegt ist, so daß das Potentialfeld im Bereich vom Eingangsleuchtschirm (4) zum Ausgangsleuchtschirm (7) kontinuierlich ansteigt.
EP19890117243 1988-09-29 1989-09-18 Röntgenbildverstärker Withdrawn EP0361266A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8812346U DE8812346U1 (de) 1988-09-29 1988-09-29 Röntgenbildverstärker
DE8812346U 1988-09-29

Publications (2)

Publication Number Publication Date
EP0361266A2 EP0361266A2 (de) 1990-04-04
EP0361266A3 true EP0361266A3 (de) 1990-11-14

Family

ID=6828445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890117243 Withdrawn EP0361266A3 (de) 1988-09-29 1989-09-18 Röntgenbildverstärker

Country Status (4)

Country Link
US (1) US4996414A (de)
EP (1) EP0361266A3 (de)
JP (1) JPH0250947U (de)
DE (1) DE8812346U1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8903130A (nl) * 1989-12-21 1991-07-16 Philips Nv Helderheidsversterkerbuis met sealverbindingen.
DE4213906A1 (de) * 1992-04-28 1993-11-04 Siemens Ag Roentgenbildverstaerker
US5780961A (en) * 1993-03-05 1998-07-14 Regents Of The University Of California Ground plane insulating coating for proximity focused devices
EP0721653B1 (de) * 1993-09-29 2001-11-28 International Standard Electric Corporation Vakuumkammer für eine bildverstärkerröhre
JP3492777B2 (ja) * 1993-10-29 2004-02-03 株式会社東芝 放射線イメージ増強管及びその製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB471817A (en) * 1935-03-14 1937-09-10 Telefunken Gmbh Improvements in or relating to electron discharge device arrangements
DE1035282B (de) * 1955-09-07 1958-07-31 Dr Fritz Schneider Elektronen- bzw. ionenoptische Linsenanordnung
GB839681A (en) * 1958-02-14 1960-06-29 Rauland Corp Improvements in or relating to electron discharge devices
FR2231103A1 (en) * 1973-05-25 1974-12-20 South African Inventions Electron optical system for image amplifier tubes - has an electrode connection of semiconductor matl

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB499869A (en) * 1937-06-26 1939-01-26 Hans Gerhard Lubszynski Improvements in or relating to electron discharge devices
US3026437A (en) * 1958-10-20 1962-03-20 Rauland Corp Electron discharge device
US3143681A (en) * 1959-12-07 1964-08-04 Gen Electric Spiral electrostatic electron lens
US3417242A (en) * 1965-09-20 1968-12-17 Machlett Lab Inc Image intensification system comprising remote control means for varying the size of the output image
NL149636B (nl) * 1967-06-09 1976-05-17 Optische Ind De Oude Delft Nv Vacuuembuis voor elektronen-optische afbeelding.
JPS4827752B1 (de) * 1969-12-17 1973-08-25

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB471817A (en) * 1935-03-14 1937-09-10 Telefunken Gmbh Improvements in or relating to electron discharge device arrangements
DE1035282B (de) * 1955-09-07 1958-07-31 Dr Fritz Schneider Elektronen- bzw. ionenoptische Linsenanordnung
GB839681A (en) * 1958-02-14 1960-06-29 Rauland Corp Improvements in or relating to electron discharge devices
FR2231103A1 (en) * 1973-05-25 1974-12-20 South African Inventions Electron optical system for image amplifier tubes - has an electrode connection of semiconductor matl

Also Published As

Publication number Publication date
DE8812346U1 (de) 1990-02-01
JPH0250947U (de) 1990-04-10
US4996414A (en) 1991-02-26
EP0361266A2 (de) 1990-04-04

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