GB1091452A - Improvements in or relating to image intensifiers - Google Patents

Improvements in or relating to image intensifiers

Info

Publication number
GB1091452A
GB1091452A GB22471/64A GB2247164A GB1091452A GB 1091452 A GB1091452 A GB 1091452A GB 22471/64 A GB22471/64 A GB 22471/64A GB 2247164 A GB2247164 A GB 2247164A GB 1091452 A GB1091452 A GB 1091452A
Authority
GB
United Kingdom
Prior art keywords
glass
coating
tube
enamel
plate
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
GB22471/64A
Inventor
Brian William Manley
John Adams
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.)
Philips Components Ltd
Original Assignee
Mullard 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
Application filed by Mullard Ltd filed Critical Mullard Ltd
Priority to GB22471/64A priority Critical patent/GB1091452A/en
Priority to SE6894/65A priority patent/SE318037B/xx
Priority to DE1514255A priority patent/DE1514255C3/en
Priority to NL656506590A priority patent/NL153716B/en
Priority to US458734A priority patent/US3394261A/en
Priority to AT482765A priority patent/AT259706B/en
Priority to FR18816A priority patent/FR1435470A/en
Publication of GB1091452A publication Critical patent/GB1091452A/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
    • H01J29/023—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof secondary-electron emitting electrode arrangements
    • 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
    • H01J31/505—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output flat tubes, e.g. proximity focusing tubes
    • 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
    • H01J31/506—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output tubes using secondary emission effect
    • 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

Landscapes

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

Abstract

A glass plate having channels extending between its opposite faces, for use in an X-ray image intensifier (see Division Hl), is formed by fusing together a plurality of parallel glass tubes, each of which is coated internally with a glass enamel. A 10 mm. diameter lead glass tube is sprayed externally with a low-melting point enamel, and then coated internally with a glass enamel consisting of the oxides of lead (50% by weight), boron (25%), and bismuth (25%). The enamel is prepared by grinding glass of this composition to a frit, and adding to a solution of nitrocellulose in amyl acetate binder, the tube being filled with this coating solution, and subsequently drained and dried, the binder being removed by heat before the tube is drawn down to 200 microns diameter, during which process the coating is fired. More than one coating may be applied and separately fired, before drawing, to give a final coating thickness of 10 microns. Cut lengths of the drawn tube are fused together by heating at 600 DEG C., the resulting plate being heated in hydrogen at 340 DEG C. for two hours to reduce the coating and render it partially conductive. It may be partially reoxidized, to attain a desired value of conductivity, by immersing the plate in nearly boiling water.
GB22471/64A 1964-05-29 1964-05-29 Improvements in or relating to image intensifiers Expired GB1091452A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB22471/64A GB1091452A (en) 1964-05-29 1964-05-29 Improvements in or relating to image intensifiers
SE6894/65A SE318037B (en) 1964-05-29 1965-05-25
DE1514255A DE1514255C3 (en) 1964-05-29 1965-05-25 X-ray image intensifier
NL656506590A NL153716B (en) 1964-05-29 1965-05-25 FRAME AMPLIFIER WITH SECONDARY EMISSION REPLACEMENT.
US458734A US3394261A (en) 1964-05-29 1965-05-25 Electronic intensifier device for producing a visible image from an X-ray image
AT482765A AT259706B (en) 1964-05-29 1965-05-26 X-ray image intensifier
FR18816A FR1435470A (en) 1964-05-29 1965-05-29 Chi-ray image intensifier, secondary emission amplification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22471/64A GB1091452A (en) 1964-05-29 1964-05-29 Improvements in or relating to image intensifiers

Publications (1)

Publication Number Publication Date
GB1091452A true GB1091452A (en) 1967-11-15

Family

ID=10179909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22471/64A Expired GB1091452A (en) 1964-05-29 1964-05-29 Improvements in or relating to image intensifiers

Country Status (7)

Country Link
US (1) US3394261A (en)
AT (1) AT259706B (en)
DE (1) DE1514255C3 (en)
FR (1) FR1435470A (en)
GB (1) GB1091452A (en)
NL (1) NL153716B (en)
SE (1) SE318037B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2132044A1 (en) * 1971-03-29 1972-11-17 Bendix Corp

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1168415A (en) * 1968-07-31 1969-10-22 Mullard Ltd Improvements in or relating to Image Intensifiers
US3748523A (en) * 1971-08-04 1973-07-24 Westinghouse Electric Corp Broad spectral response pickup tube
US3969624A (en) * 1973-05-21 1976-07-13 Agfa-Gevaert N.V. Electrostatic imaging device and process using same
FR2345815A1 (en) * 1976-01-30 1977-10-21 Thomson Csf NEW SOLID IONIZING RADIATION DETECTOR
DE2750132A1 (en) * 1976-11-12 1978-05-18 Diagnostic Inform X-RAY SENSITIVE IMAGE AMPLIFIER TUBE AND RADIOGRAPHIC CAMERA EQUIPPED WITH IT
US4186302A (en) * 1976-11-12 1980-01-29 Diagnostic Information, Inc. Panel type X-ray image intensifier tube and radiographic camera system
US4300046A (en) * 1978-07-12 1981-11-10 Diagnostic Information, Inc. Panel type X-ray image intensifier tube and radiographic camera system
US5635706A (en) * 1996-03-27 1997-06-03 Csl Opto-Electronics Corporation Direct conversion X-ray/gamma-ray photocathode
SE518801C2 (en) 2000-06-05 2002-11-26 Xcounter Ab Device and method for detecting ionizing radiation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128408A (en) * 1958-09-02 1964-04-07 Bendix Corp Electron multiplier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2132044A1 (en) * 1971-03-29 1972-11-17 Bendix Corp

Also Published As

Publication number Publication date
SE318037B (en) 1969-12-01
AT259706B (en) 1968-01-25
DE1514255A1 (en) 1969-10-02
NL153716B (en) 1977-06-15
FR1435470A (en) 1966-04-15
DE1514255B2 (en) 1973-10-18
US3394261A (en) 1968-07-23
DE1514255C3 (en) 1974-05-16
NL6506590A (en) 1965-11-30

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