GB1389024A - Radiographic intensifying screens - Google Patents

Radiographic intensifying screens

Info

Publication number
GB1389024A
GB1389024A GB6105071A GB6105071A GB1389024A GB 1389024 A GB1389024 A GB 1389024A GB 6105071 A GB6105071 A GB 6105071A GB 6105071 A GB6105071 A GB 6105071A GB 1389024 A GB1389024 A GB 1389024A
Authority
GB
United Kingdom
Prior art keywords
fluorescent
layer
metallic layer
substance
oxysulphides
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
GB6105071A
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.)
Agfa Gevaert NV
Agfa Gevaert AG
Original Assignee
Agfa Gevaert NV
Agfa Gevaert 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
Priority to BE792387D priority Critical patent/BE792387A/en
Application filed by Agfa Gevaert NV, Agfa Gevaert AG filed Critical Agfa Gevaert NV
Priority to GB6105071A priority patent/GB1389024A/en
Priority to US303388A priority patent/US3872309A/en
Priority to CA155,670A priority patent/CA968073A/en
Priority to FR7244093A priority patent/FR2167011A5/fr
Priority to JP47124702A priority patent/JPS4881582A/ja
Priority to DE2260858A priority patent/DE2260858A1/en
Priority to IT86292/72A priority patent/IT975679B/en
Publication of GB1389024A publication Critical patent/GB1389024A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Conversion Of X-Rays Into Visible Images (AREA)
  • Luminescent Compositions (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

1389024 Uses of luminescence AGFAGEVAERT 14 Dec 1972 [31 Dec 1971] 61050/71 Heading C4S [Also in Division H5] A radiographic intensifying screen comprises at least one metallic layer including a metal of atomic number in the range 46 to 83 and at least one fluorescent screen including at least one substance of the general formula where M is one of Y, La, Gd, or Lu; M<SP>1</SP> is one of Dy, Er, Eu, Ho, Nd, Pr, Sm, Tb, Tm, or Yb; X is S or a halogen; n is between 0À0002 and 0À2; w is 1 when X is a halogen; or 2 when X is sulphur. The metallic layer preferably includes at least one of Ag, Sn, Te, Tl, W, Pt, Au, Hg, Ta, Pb or Bi. The fluorescent material can emit light in the wavebands 320-450 nm., 450-570 nm., or 550-700 nm. Examples of the fluorescent substance are the oxysulphides of yttrium, gadolinium or lanthanum activated by terbium, or a mixture of yttrium and lanthanum oxysulphides activated by europium. The metallic layer can be supported on paper, glass, cloth or plastics film. The fluorescent substance can be of grain size 5 to 50 Á and dispersed in an organic binder in a layer 0À05 to 0À5 mm. thick. The fluorescent layer or an adjacent layer can include a "screening" dye to reduce light reflected or scattered in the screen.
GB6105071A 1971-12-31 1971-12-31 Radiographic intensifying screens Expired GB1389024A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE792387D BE792387A (en) 1971-12-31 REINFORCEMENT SCREENS FOR X-RAY PHOTOGRAPHY
GB6105071A GB1389024A (en) 1971-12-31 1971-12-31 Radiographic intensifying screens
US303388A US3872309A (en) 1971-12-31 1972-11-03 Radiographic intensifying screens
CA155,670A CA968073A (en) 1971-12-31 1972-11-06 Radiographic intensifying screens
FR7244093A FR2167011A5 (en) 1971-12-31 1972-12-11
JP47124702A JPS4881582A (en) 1971-12-31 1972-12-12
DE2260858A DE2260858A1 (en) 1971-12-31 1972-12-13 IMPROVED RADIOGRAPHIC AMPLIFIER SCREEN
IT86292/72A IT975679B (en) 1971-12-31 1972-12-14 IMPROVEMENTS RELATING TO RADIOGRAPHIC REINFORCEMENT SCREENS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6105071A GB1389024A (en) 1971-12-31 1971-12-31 Radiographic intensifying screens

Publications (1)

Publication Number Publication Date
GB1389024A true GB1389024A (en) 1975-04-03

Family

ID=10486529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6105071A Expired GB1389024A (en) 1971-12-31 1971-12-31 Radiographic intensifying screens

Country Status (8)

Country Link
US (1) US3872309A (en)
JP (1) JPS4881582A (en)
BE (1) BE792387A (en)
CA (1) CA968073A (en)
DE (1) DE2260858A1 (en)
FR (1) FR2167011A5 (en)
GB (1) GB1389024A (en)
IT (1) IT975679B (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980887A (en) * 1973-08-27 1976-09-14 U.S. Radium Corporation Silicon sensitized rare earth oxysulfide phosphors
JPS5919159B2 (en) * 1975-11-14 1984-05-02 株式会社東芝 X Senkei Kouhyou Jiban
GB1518613A (en) * 1976-03-18 1978-07-19 Agfa Gevaert Radiographic intensifying screens
GB1575511A (en) * 1976-03-18 1980-09-24 Agfa Gevaert Luminescent composition for radiation-conversion screens
US4070583A (en) * 1976-12-13 1978-01-24 General Electric Company Rare earth oxyhalide phosphors coactivated with terbium, thulium
US4297584A (en) * 1977-04-11 1981-10-27 Lockheed Missiles & Space Company, Inc. Rare earth phosphors and phosphor screens
US4101781A (en) * 1977-06-27 1978-07-18 Hewlett-Packard Company Stable fiber optic scintillative x-ray screen and method of production
JPS54107692A (en) * 1978-02-10 1979-08-23 Dainippon Toryo Kk Radiant ray intensifying paper
US4195228A (en) * 1978-05-19 1980-03-25 General Electric Company Color contrast radiographic device
US4256965A (en) * 1979-01-15 1981-03-17 The United States Of America As Represented By The Secretary Of The Navy High energy fluoroscopic screen
FR2463420A1 (en) * 1979-08-14 1981-02-20 France Etat NON-LUMINOUS PHOTON BRIGHT PHOTON CONVERTER AND NON-DESTRUCTIVE CONTROL PLANT USING SAID CONVERTER
US4507560A (en) * 1980-06-13 1985-03-26 Gte Products Corporation Terbium-activated gadolinium oxysulfide X-ray phosphor
JPS58156899A (en) * 1982-03-15 1983-09-17 化成オプトニクス株式会社 Radiation image conversion screen
DE3275420D1 (en) * 1982-03-15 1987-03-12 Kasei Optonix Radiographic image conversion screens
DE3212405C2 (en) * 1982-04-02 1984-01-05 Siemens AG, 1000 Berlin und 8000 München Yttrium oxysulfide phosphor activated with terbium
GB2119396B (en) * 1982-04-26 1985-11-20 Gen Electric Multi-layer x-ray screens
US4626688A (en) 1982-11-26 1986-12-02 Barnes Gary T Split energy level radiation detection
US4481416A (en) * 1982-12-20 1984-11-06 General Electric Company Thermoluminescent coactivated rare earth oxyhalide phosphors and x-ray image converters utilizing said phosphors
JPS59189200U (en) * 1983-03-11 1984-12-15 化成オプトニクス株式会社 radiation intensifying screen
US4499159A (en) * 1984-04-13 1985-02-12 General Electric Company X-ray image converters utilizing rare earth oxyhalide phosphors
JPS6195351A (en) * 1984-10-17 1986-05-14 Kasei Optonix Co Ltd Intensifying screen
HU195335B (en) * 1984-11-05 1988-04-28 Peter Teleki Method and modifying body for influencing effect on a target sensitive to radiation exerted by x-ray or gamma radiation
NL8500981A (en) * 1985-04-03 1986-11-03 Philips Nv ROENTGEN IMAGE AMPLIFIER TUBE WITH A SECONDARY RADIATION ABSORBING LUMINESCENT LAYER.
DE3614476A1 (en) * 1986-04-29 1987-11-12 Du Pont Deutschland RADIATION THERAPY RECORDING SYSTEM
US5025163A (en) * 1989-12-01 1991-06-18 Eastman Kodak Company Radiographic imaging screen
US5334843A (en) * 1992-08-17 1994-08-02 Zeman Herbert D Composite scintillator screen
US6699406B2 (en) * 1999-03-19 2004-03-02 Rutgers, The State University Rare earth doped host materials
US7094361B2 (en) * 1999-03-19 2006-08-22 Rutgers, The State University Optically transparent nanocomposite materials
US6457860B1 (en) * 2001-01-10 2002-10-01 Eastman Kodak Company Light-weight imaging assemblies for oncology portal imaging
EP1493798A1 (en) * 2003-06-30 2005-01-05 Agfa-Gevaert Rare earth activated lutetium oxysulfide phosphor for direct x-ray detection.
US20040262536A1 (en) * 2003-06-30 2004-12-30 Van Den Bergh Rudy Rare earth activated rare earth oxysulfide phosphor for direct X-ray detection
JP2005049337A (en) * 2003-06-30 2005-02-24 Agfa Gevaert Nv Rare-earth element activating oxysulfide phosphor for directly detecting x ray
JP2005351666A (en) * 2004-06-08 2005-12-22 Fuji Photo Film Co Ltd Radiosensitized screen and radiation image forming method
US7214947B2 (en) * 2005-03-25 2007-05-08 General Electric Company Detector assembly and method of manufacture
US7586252B2 (en) * 2005-05-23 2009-09-08 General Electric Company Phosphor screen and imaging assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584216A (en) * 1968-09-12 1971-06-08 Bendix Corp Radiographic intensifying screen
US3617743A (en) * 1968-10-23 1971-11-02 Gen Electric X-ray image convertors utilizing lanthanum and gadolinium oxyhalide luminescent materials activated with terbium
US3617285A (en) * 1969-10-21 1971-11-02 William Joseph Staudenmayer Light intensifying screens

Also Published As

Publication number Publication date
IT975679B (en) 1974-08-10
JPS4881582A (en) 1973-10-31
DE2260858A1 (en) 1973-07-05
BE792387A (en) 1973-06-07
US3872309A (en) 1975-03-18
FR2167011A5 (en) 1973-08-17
CA968073A (en) 1975-05-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee