DE733611C - Device for making corpuscular rays visible - Google Patents

Device for making corpuscular rays visible

Info

Publication number
DE733611C
DE733611C DEI59565D DEI0059565D DE733611C DE 733611 C DE733611 C DE 733611C DE I59565 D DEI59565 D DE I59565D DE I0059565 D DEI0059565 D DE I0059565D DE 733611 C DE733611 C DE 733611C
Authority
DE
Germany
Prior art keywords
making
metal
corpuscular rays
corpuscular
layer
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
DEI59565D
Other languages
German (de)
Inventor
Dr Otto Eisenhut
Dr Hans Gross
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI59565D priority Critical patent/DE733611C/en
Application granted granted Critical
Publication of DE733611C publication Critical patent/DE733611C/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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/28—Luminescent screens with protective, conductive or reflective layers

Landscapes

  • Measurement Of Radiation (AREA)

Description

Vorrichtung zur Sichtbarmachung von KorpuskuIars:trahIen Bei der Sichtbarmachung von Korpuskularstr ahlenauf abbildenden Schichten, z. B. ,Leuchtschirmen, oder lichtempfindlichen Schichten, beispielsweise von Elektronenstrahlen im Elektronenmikroskop, im Dlektronenstrahloszillograph, im elektronenoptischen Bildwandler oder in der Fernsehröhre, treten häufig Störungen auf, insbesondere Störungen durch Licht von der Quelle der Korpuskularstrahlen, durch optische Rückkopplungen, eIektrische Rufladungen und `V ärmestaintngen. überzieht man nach einem bekannten Verfahren die der Kathode zugewandte Seite eines Leuchtschirmes durch Niederschlagen von Metalldämpfen mit einer leitenden, metallhaltigen Schicht, so lassen sich die obengenannten Störungen beheben, jedoch zeigt sich dabei der Nachteil, daß die Bildhelligkeit bedeutend verringert wird. Dieser Nachteil läßt sich nun bei einer Vorrichtung zur Sichtbarmachung von Korpuskularstrahlen mittels Leuchtschirmes oder lichtempfindlicher Schicht und vorgeschalteter, beispielsweise aufgedampfter metallhaltiger Schicht dadurch beseitigen, daß gemäß der Erfindung zwischen der abbildenden und der metallhaltigen Schicht eine isolierende oder halbleitende Zwischonschicht angeordnet wird.Device for visualizing corpuscular structures: traction during visualization of corpuscular beams on imaging layers, e.g. B., luminescent screens, or photosensitive Layers, for example of electron beams in the electron microscope, in the electron beam oscilloscope, in the electron-optical image converter or in the television tube, interference often occurs especially disturbances caused by light from the source of the corpuscular rays, through optical feedback, electrical call charges and heat build-up. covers according to a known method, the side of a luminescent screen facing the cathode by depositing metal vapors with a conductive, metal-containing layer, in this way the above malfunctions can be eliminated, but this shows the Disadvantage that the brightness of the image is significantly reduced. This disadvantage leaves now with a device for visualizing corpuscular rays by means of Luminescent screen or light-sensitive layer and upstream, for example Eliminate vapor-deposited metal-containing layer in that according to the invention an insulating or semiconducting layer between the imaging and the metal-containing layer Intermediate layer is arranged.

Gut geeignete Stoffe zur Verstellung dieser Zwischenschicht sind beispielsweise Kollodium, Zaponlack, Kunstharze o. dgl. Durch die Anordnung der Zwischenschicht erreicht man eine mehrfache, beispielsweise 5- bis 6fache Verstärkung der `Virksamkeit eines unbedeckten Leuchtschirmes. Das Verfahren ist nicht nur bei der Verwendung von Leichtmetallen, z. B. Beryllium, Magnesium oder Aluminium, als metallhaltige Schicht anwendbar, sondern es ist auch bei schweren Metallen, z. B. Silber oder Gold, gut zu verwenden, da sich beim Niederschlagen der 'Metalldämpfe leicht eine hinreichend dünne, sehr wirksame metallhaltige Schicht erzeugen läßt.Well-suited materials for adjusting this intermediate layer are, for example Collodion, zapon lacquer, synthetic resins or the like. Through the arrangement of the intermediate layer one achieves a multiple, for example 5- to 6-fold increase in the `effectiveness an uncovered fluorescent screen. The procedure isn't just in use of light metals, e.g. B. beryllium, magnesium or aluminum, as metal-containing Layer applicable, rather it is also suitable for heavy metals, e.g. B. silver or gold, good to use, since when precipitating the 'metal vapors can easily produce a sufficiently thin, very effective metal-containing layer.

Auch beim Abbilden mittels Schwärzunlichtempfindlicher Schichten durch Korpuskularstrahlen kann das Bild durch Anbringung einer Zwischenschicht der vorerwähnten Art zwischen der abbildenden und der metallhaltigen Schicht verstärkt werden.Even when imaging using layers that are sensitive to blackness Corpuscular rays can form the image by applying an intermediate layer of the aforementioned Kind between the imaging and the metal-containing layer are reinforced.

Claims (1)

1'ATENTANSPRct:ti: Vorrichtung "zur Slchtbartnachung von Korpuskularstrahlen mittels Leuchtschirmes oder lichtempfindlicher Schicht und vorgeschalteter, beispielsweise aufgedampfter metallhaltiger Schicht, dadurch gekennzeichnet, daß zwischen der abbildenden und der metallhaltigen Schicht eine isolierende oder halbleitende Zwischenschicht angeordnet ist.1'ATENTANSPRct: ti: device "for simulating corpuscular rays by means of a fluorescent screen or light-sensitive layer and an upstream, for example vapor-deposited metal-containing layer, characterized in that an insulating or semiconducting intermediate layer is arranged between the imaging and metal-containing layers.
DEI59565D 1937-11-10 1937-11-10 Device for making corpuscular rays visible Expired DE733611C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI59565D DE733611C (en) 1937-11-10 1937-11-10 Device for making corpuscular rays visible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI59565D DE733611C (en) 1937-11-10 1937-11-10 Device for making corpuscular rays visible

Publications (1)

Publication Number Publication Date
DE733611C true DE733611C (en) 1943-03-30

Family

ID=7195039

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI59565D Expired DE733611C (en) 1937-11-10 1937-11-10 Device for making corpuscular rays visible

Country Status (1)

Country Link
DE (1) DE733611C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951578C (en) * 1951-02-24 1956-10-31 Rca Corp Photoconductive screen for television tubes
DE974018C (en) * 1938-02-17 1960-08-18 Aeg Process for the production of a luminescent screen in Braun tubes and luminescent screen produced by the process
DE1289587B (en) * 1963-08-02 1969-02-20 Emi Ltd Electron discharge device for image amplifiers, image pickup tubes and photomultiplier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974018C (en) * 1938-02-17 1960-08-18 Aeg Process for the production of a luminescent screen in Braun tubes and luminescent screen produced by the process
DE951578C (en) * 1951-02-24 1956-10-31 Rca Corp Photoconductive screen for television tubes
DE1289587B (en) * 1963-08-02 1969-02-20 Emi Ltd Electron discharge device for image amplifiers, image pickup tubes and photomultiplier

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