US2689189A - X-ray fluorescent screen - Google Patents

X-ray fluorescent screen Download PDF

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Publication number
US2689189A
US2689189A US260006A US26000651A US2689189A US 2689189 A US2689189 A US 2689189A US 260006 A US260006 A US 260006A US 26000651 A US26000651 A US 26000651A US 2689189 A US2689189 A US 2689189A
Authority
US
United States
Prior art keywords
layer
screen
sulphide
silicate
cadmium
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 - Lifetime
Application number
US260006A
Other languages
English (en)
Inventor
Walter J Hushley
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
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 to BE516023D priority Critical patent/BE516023A/xx
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to US260006A priority patent/US2689189A/en
Priority to GB30073/52A priority patent/GB719762A/en
Application granted granted Critical
Publication of US2689189A publication Critical patent/US2689189A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S65/00—Glass manufacturing
    • Y10S65/01—Lens envelope
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/266—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension of base or substrate

Definitions

  • the binder ⁇ which is used to attach the phosphor to the glass is preferably a water solution of potassium silicate.
  • the solution used consists of 3 to 15 per cent but preferably about 15 per cent by weight of potassium silicate in water and the potassium silicate has a ratio of silica to potassium oxide of'about ve to two.
  • Other silicate solutions such as sodium silicate, lithium silicate or ethyl silicate may be used.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Luminescent Compositions (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
US260006A 1951-12-05 1951-12-05 X-ray fluorescent screen Expired - Lifetime US2689189A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE516023D BE516023A (enrdf_load_html_response) 1951-12-05
US260006A US2689189A (en) 1951-12-05 1951-12-05 X-ray fluorescent screen
GB30073/52A GB719762A (en) 1951-12-05 1952-11-27 Improvements in or relating to screens for producing an electron image having a space-distribution which is a replica of the space-distribution of an image pattern of radiations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US260006A US2689189A (en) 1951-12-05 1951-12-05 X-ray fluorescent screen

Publications (1)

Publication Number Publication Date
US2689189A true US2689189A (en) 1954-09-14

Family

ID=22987419

Family Applications (1)

Application Number Title Priority Date Filing Date
US260006A Expired - Lifetime US2689189A (en) 1951-12-05 1951-12-05 X-ray fluorescent screen

Country Status (3)

Country Link
US (1) US2689189A (enrdf_load_html_response)
BE (1) BE516023A (enrdf_load_html_response)
GB (1) GB719762A (enrdf_load_html_response)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798823A (en) * 1954-10-21 1957-07-09 Westinghouse Electric Corp Fluorescent screen for X-ray image tube and method for preparing same
US2829265A (en) * 1954-11-23 1958-04-01 Westinghouse Electric Corp Electrode structrue for imaging device
US2900545A (en) * 1953-07-21 1959-08-18 Sylvania Electric Prod Curved electroluminescent lamp
US2921201A (en) * 1955-12-15 1960-01-12 Int Standard Electric Corp Fluorescent screen for electron-ray tubes operating at low voltage
US3089956A (en) * 1953-07-10 1963-05-14 Westinghouse Electric Corp X-ray fluorescent screen
US3783299A (en) * 1972-05-17 1974-01-01 Gen Electric X-ray image intensifier input phosphor screen and method of manufacture thereof
US3783297A (en) * 1972-05-17 1974-01-01 Gen Electric X-ray image intensifier input phosphor screen and method of manufacture thereof
US3783298A (en) * 1972-05-17 1974-01-01 Gen Electric X-ray image intensifier input phosphor screen and method of manufacture thereof
EP3604248A4 (en) * 2017-03-29 2020-12-16 Sekisui Chemical Co., Ltd. LUMINOUS CURVED GLASS AND CURVED DIGITAL SIGNAGE DEVICE

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289921A (en) * 1940-06-01 1942-07-14 Rca Corp Photosensitive electrode
US2454499A (en) * 1944-11-21 1948-11-23 United States Radium Corp X-ray screen
US2489127A (en) * 1947-06-14 1949-11-22 Rca Corp High capacitance target
US2523132A (en) * 1949-08-10 1950-09-19 Westinghouse Electric Corp Photosensitive apparatus
US2533809A (en) * 1948-07-03 1950-12-12 Westinghouse Electric Corp Protection of phosphors from attack by alkali vapors
US2554257A (en) * 1949-12-14 1951-05-22 Westinghouse Electric Corp Protection of phosphors from attack by alkali vapors
US2586304A (en) * 1948-06-12 1952-02-19 Westinghouse Electric Corp Protection of phosphors from attack by alkali vapors

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289921A (en) * 1940-06-01 1942-07-14 Rca Corp Photosensitive electrode
US2454499A (en) * 1944-11-21 1948-11-23 United States Radium Corp X-ray screen
US2489127A (en) * 1947-06-14 1949-11-22 Rca Corp High capacitance target
US2586304A (en) * 1948-06-12 1952-02-19 Westinghouse Electric Corp Protection of phosphors from attack by alkali vapors
US2533809A (en) * 1948-07-03 1950-12-12 Westinghouse Electric Corp Protection of phosphors from attack by alkali vapors
US2523132A (en) * 1949-08-10 1950-09-19 Westinghouse Electric Corp Photosensitive apparatus
US2554257A (en) * 1949-12-14 1951-05-22 Westinghouse Electric Corp Protection of phosphors from attack by alkali vapors

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089956A (en) * 1953-07-10 1963-05-14 Westinghouse Electric Corp X-ray fluorescent screen
US2900545A (en) * 1953-07-21 1959-08-18 Sylvania Electric Prod Curved electroluminescent lamp
US2798823A (en) * 1954-10-21 1957-07-09 Westinghouse Electric Corp Fluorescent screen for X-ray image tube and method for preparing same
US2829265A (en) * 1954-11-23 1958-04-01 Westinghouse Electric Corp Electrode structrue for imaging device
US2921201A (en) * 1955-12-15 1960-01-12 Int Standard Electric Corp Fluorescent screen for electron-ray tubes operating at low voltage
US3783299A (en) * 1972-05-17 1974-01-01 Gen Electric X-ray image intensifier input phosphor screen and method of manufacture thereof
US3783297A (en) * 1972-05-17 1974-01-01 Gen Electric X-ray image intensifier input phosphor screen and method of manufacture thereof
US3783298A (en) * 1972-05-17 1974-01-01 Gen Electric X-ray image intensifier input phosphor screen and method of manufacture thereof
EP3604248A4 (en) * 2017-03-29 2020-12-16 Sekisui Chemical Co., Ltd. LUMINOUS CURVED GLASS AND CURVED DIGITAL SIGNAGE DEVICE
US11545056B2 (en) 2017-03-29 2023-01-03 Sekisui Chemical Co., Ltd. Luminous curved glass and curved digital signage

Also Published As

Publication number Publication date
GB719762A (en) 1954-12-08
BE516023A (enrdf_load_html_response)

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