FR2296261A1 - Electron transparent window for image converter tubes - consist of microchannel plate coated with vacuum-tight electron transparent foil - Google Patents

Electron transparent window for image converter tubes - consist of microchannel plate coated with vacuum-tight electron transparent foil

Info

Publication number
FR2296261A1
FR2296261A1 FR7539021A FR7539021A FR2296261A1 FR 2296261 A1 FR2296261 A1 FR 2296261A1 FR 7539021 A FR7539021 A FR 7539021A FR 7539021 A FR7539021 A FR 7539021A FR 2296261 A1 FR2296261 A1 FR 2296261A1
Authority
FR
France
Prior art keywords
electron transparent
electron
microchannel plate
vacuum
window
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Withdrawn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
FR7539021A
Other languages
French (fr)
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 FR2296261A1 publication Critical patent/FR2296261A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers
    • H01J43/06—Electrode arrangements
    • H01J43/18—Electrode arrangements using essentially more than one dynode
    • H01J43/24—Dynodes having potential gradient along their surfaces
    • H01J43/246—Microchannel plates [MCP]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
    • H01J31/06—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with more than two output electrodes, e.g. for multiple switching or counting
    • H01J31/065—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with more than two output electrodes, e.g. for multiple switching or counting for electrography or electrophotography, for transferring a charge pattern through the faceplate
    • 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
    • H01J33/00—Discharge tubes with provision for emergence of electrons or ions from the vessel; Lenard tubes
    • H01J33/02—Details
    • H01J33/04—Windows
    • 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

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

The electron transparent window is intended for permitting the passage of electron images from the high vacuum space of electric discharge tubes, such as image X-ray converters. The window consists of a microchannel plate which is coated with a vacuum-tight, electron transparent foil, at least at one side. The channels of the microplate are preferably focussed at a point located in front of the plate surface. In addition to the application in X-ray image intensifier the window can be also used in recording devices for television image frames. In a television cathode-ray tube the microchannel plate forms a target for the scanning beam in conjunction with a recording drum with a surface containing electron image storage material.
FR7539021A 1974-12-23 1975-12-19 Electron transparent window for image converter tubes - consist of microchannel plate coated with vacuum-tight electron transparent foil Withdrawn FR2296261A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742461261 DE2461261A1 (en) 1974-12-23 1974-12-23 ELECTRONIC WINDOWS

Publications (1)

Publication Number Publication Date
FR2296261A1 true FR2296261A1 (en) 1976-07-23

Family

ID=5934475

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7539021A Withdrawn FR2296261A1 (en) 1974-12-23 1975-12-19 Electron transparent window for image converter tubes - consist of microchannel plate coated with vacuum-tight electron transparent foil

Country Status (3)

Country Link
JP (1) JPS5186963A (en)
DE (1) DE2461261A1 (en)
FR (1) FR2296261A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013931A1 (en) * 1979-01-23 1980-08-06 Shimadzu Corporation Emission computed tomograph
EP0014339A1 (en) * 1979-01-23 1980-08-20 Shimadzu Corporation Emission computed tomograph

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013931A1 (en) * 1979-01-23 1980-08-06 Shimadzu Corporation Emission computed tomograph
EP0014339A1 (en) * 1979-01-23 1980-08-20 Shimadzu Corporation Emission computed tomograph

Also Published As

Publication number Publication date
DE2461261A1 (en) 1976-07-01
JPS5186963A (en) 1976-07-30

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Legal Events

Date Code Title Description
ST Notification of lapse