FR2384349A1 - Intensifier for X=ray, gamma-ray or weak light-ray image - having input and output screen with phosphor mosaic, giving great resolution and accurate reproduction - Google Patents

Intensifier for X=ray, gamma-ray or weak light-ray image - having input and output screen with phosphor mosaic, giving great resolution and accurate reproduction

Info

Publication number
FR2384349A1
FR2384349A1 FR7807311A FR7807311A FR2384349A1 FR 2384349 A1 FR2384349 A1 FR 2384349A1 FR 7807311 A FR7807311 A FR 7807311A FR 7807311 A FR7807311 A FR 7807311A FR 2384349 A1 FR2384349 A1 FR 2384349A1
Authority
FR
France
Prior art keywords
ray
image
input
output screen
phosphor
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.)
Granted
Application number
FR7807311A
Other languages
French (fr)
Other versions
FR2384349B1 (en
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
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
Priority claimed from JP52027106A external-priority patent/JPS5916701B2/en
Priority claimed from JP52102571A external-priority patent/JPS5913133B2/en
Application filed by Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of FR2384349A1 publication Critical patent/FR2384349A1/en
Application granted granted Critical
Publication of FR2384349B1 publication Critical patent/FR2384349B1/fr
Granted 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
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/38—Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode
    • H01J29/385—Photocathodes comprising a layer which modified the wave length of impinging radiation
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K4/00—Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

image intensifier consists of an input screen for converting a radiation image into an electron charge image; an electro-optical system for accelerating and focussing the electron charge image; and an output screen on which a visible image is produced by the electron charge image. The input and/or output screen consists of a support with an electrochemically applied network with cracks extending from the upper regions of the network to the surface of the phosphor layer, so that they form a large no. of phosphor blocks. There is also a photo-cathode applied to the phosphor layer directly or over a barrier layer. In an example, Al foil was anodised and the small pores were sealed by adding water of crystallisation and heating above 250 degrees C so that an irregular mosaic formed. Electroplating with Ni took place preferentially in the gaps in the mosaic, then a CsI phosphor coating was applied, which formed numerous blocks with a dia. of 50-100 mu. The foil was used as input screen.
FR7807311A 1977-03-14 1978-03-14 Intensifier for X=ray, gamma-ray or weak light-ray image - having input and output screen with phosphor mosaic, giving great resolution and accurate reproduction Granted FR2384349A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP52027106A JPS5916701B2 (en) 1977-03-14 1977-03-14 Image intensifier input screen and its manufacturing method
JP52102571A JPS5913133B2 (en) 1977-08-29 1977-08-29 Method of manufacturing fluorescent surface

Publications (2)

Publication Number Publication Date
FR2384349A1 true FR2384349A1 (en) 1978-10-13
FR2384349B1 FR2384349B1 (en) 1982-02-26

Family

ID=26364994

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807311A Granted FR2384349A1 (en) 1977-03-14 1978-03-14 Intensifier for X=ray, gamma-ray or weak light-ray image - having input and output screen with phosphor mosaic, giving great resolution and accurate reproduction

Country Status (2)

Country Link
DE (1) DE2810920C2 (en)
FR (1) FR2384349A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515423A1 (en) * 1981-10-22 1983-04-29 Tokyo Shibaura Electric Co Entrance screen for drilling or brightness amplifier tube - using caesium iodide as phosphor screen
EP0099285B1 (en) * 1982-07-13 1987-01-21 Thomson-Csf Scintillative rays conversion screen and process for the manufacture of the same
EP0869533A1 (en) * 1996-09-18 1998-10-07 Kabushiki Kaisha Toshiba X-ray image tube and method for manufacturing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929745C2 (en) * 1979-07-23 1986-03-27 Siemens AG, 1000 Berlin und 8000 München Method for producing a fluorescent input screen of an X-ray image intensifier

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2037840A5 (en) * 1969-03-07 1970-12-31 Fuji Photo Film Co Ltd
FR2145566A1 (en) * 1971-07-10 1973-02-23 Philips Nv

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184077A (en) * 1976-05-11 1980-01-15 Tokyo Shibaura Electric Co., Ltd. Input screen of an image intensifier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2037840A5 (en) * 1969-03-07 1970-12-31 Fuji Photo Film Co Ltd
FR2145566A1 (en) * 1971-07-10 1973-02-23 Philips Nv

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515423A1 (en) * 1981-10-22 1983-04-29 Tokyo Shibaura Electric Co Entrance screen for drilling or brightness amplifier tube - using caesium iodide as phosphor screen
EP0099285B1 (en) * 1982-07-13 1987-01-21 Thomson-Csf Scintillative rays conversion screen and process for the manufacture of the same
EP0869533A1 (en) * 1996-09-18 1998-10-07 Kabushiki Kaisha Toshiba X-ray image tube and method for manufacturing the same
EP0869533A4 (en) * 1996-09-18 1998-11-25 Toshiba Kk X-ray image tube and method for manufacturing the same

Also Published As

Publication number Publication date
DE2810920C2 (en) 1987-01-15
DE2810920A1 (en) 1978-09-21
FR2384349B1 (en) 1982-02-26

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