FR2372220A1 - Procede de traitement de substances fluorescentes - Google Patents
Procede de traitement de substances fluorescentesInfo
- Publication number
- FR2372220A1 FR2372220A1 FR7735823A FR7735823A FR2372220A1 FR 2372220 A1 FR2372220 A1 FR 2372220A1 FR 7735823 A FR7735823 A FR 7735823A FR 7735823 A FR7735823 A FR 7735823A FR 2372220 A1 FR2372220 A1 FR 2372220A1
- Authority
- FR
- France
- Prior art keywords
- fluorescent substances
- degrees
- treatment
- treating
- treating fluorescent
- 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
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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7767—Chalcogenides
- C09K11/7769—Oxides
- C09K11/7771—Oxysulfides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Luminescent Compositions (AREA)
- Conversion Of X-Rays Into Visible Images (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
La présente invention concerne le traitement de substances fluorescentes. Les substances fluorescentes, constituées d'oxysulfures d'yttrium, de lanthane ou de gadolinium, activés avec des terres rares, et préalablement broyées, sont soumises à un chauffage entre 600 degrés C et 1 000 degrés C, en présence d'oxygène. Ce traitement donne aux substances fluorescentes des propriétés de fluorescence améliorées. Application à la fabrication d'écrans renforçateurs radiographiques.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/746,034 US4107070A (en) | 1976-11-29 | 1976-11-29 | Process for improving the properties of oxysulfide phosphor materials |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2372220A1 true FR2372220A1 (fr) | 1978-06-23 |
FR2372220B1 FR2372220B1 (fr) | 1980-06-13 |
Family
ID=24999221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7735823A Granted FR2372220A1 (fr) | 1976-11-29 | 1977-11-29 | Procede de traitement de substances fluorescentes |
Country Status (9)
Country | Link |
---|---|
US (1) | US4107070A (fr) |
JP (2) | JPS5368688A (fr) |
BE (1) | BE861318A (fr) |
CA (1) | CA1080957A (fr) |
DE (1) | DE2745286C3 (fr) |
FR (1) | FR2372220A1 (fr) |
GB (1) | GB1576368A (fr) |
IT (1) | IT1143769B (fr) |
NL (1) | NL7711753A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010015955A3 (fr) * | 2008-08-07 | 2011-01-20 | Koninklijke Philips Electronics N.V. | Matériau scintillant et filtre spectral apparenté |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4259588A (en) * | 1979-10-31 | 1981-03-31 | Eastman Kodak Company | Green-emitting X-ray intensifying screens |
JPS62104893A (ja) * | 1985-10-31 | 1987-05-15 | Sony Corp | 小粒子螢光体の作製方法 |
EP0299409B1 (fr) * | 1987-07-16 | 1992-09-30 | Kasei Optonix, Ltd. | Ecran radiographique renforçateur |
JPH02152196A (ja) * | 1988-12-03 | 1990-06-12 | Osaka Prefecture | 分散型el素子 |
US5952666A (en) * | 1997-02-12 | 1999-09-14 | Konica Corporation | Radiation image conversion panel |
US6095882A (en) * | 1999-02-12 | 2000-08-01 | Micron Technology, Inc. | Method for forming emitters for field emission displays |
US6627251B2 (en) * | 2001-04-19 | 2003-09-30 | Tdk Corporation | Phosphor thin film, preparation method, and EL panel |
US6965071B2 (en) * | 2001-05-10 | 2005-11-15 | Parker-Hannifin Corporation | Thermal-sprayed metallic conformal coatings used as heat spreaders |
US8203132B2 (en) | 2005-09-08 | 2012-06-19 | Carestream Health, Inc. | Apparatus and method for imaging ionizing radiation |
US8660631B2 (en) * | 2005-09-08 | 2014-02-25 | Bruker Biospin Corporation | Torsional support apparatus and method for craniocaudal rotation of animals |
US8041409B2 (en) * | 2005-09-08 | 2011-10-18 | Carestream Health, Inc. | Method and apparatus for multi-modal imaging |
US20100220836A1 (en) | 2005-09-08 | 2010-09-02 | Feke Gilbert D | Apparatus and method for multi-modal imaging |
US20090281383A1 (en) * | 2005-09-08 | 2009-11-12 | Rao Papineni | Apparatus and method for external fluorescence imaging of internal regions of interest in a small animal using an endoscope for internal illumination |
US8050735B2 (en) * | 2005-09-08 | 2011-11-01 | Carestream Health, Inc. | Apparatus and method for multi-modal imaging |
US9638807B2 (en) | 2008-08-07 | 2017-05-02 | Koninklijke Philips N.V. | Scintillating material and related spectral filter |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3515675A (en) * | 1966-12-27 | 1970-06-02 | Lockheed Aircraft Corp | Method for making luminescent materials |
US3725704A (en) * | 1971-01-28 | 1973-04-03 | Lockheed Aircraft Corp | Rare earth phosphors for x-ray conversion screens |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6709191A (fr) * | 1967-07-01 | 1969-01-03 | ||
US3705858A (en) * | 1971-01-12 | 1972-12-12 | Eastman Kodak Co | Preparation of rare-earth-activated oxysulfide phosphors |
US3904546A (en) * | 1971-10-01 | 1975-09-09 | United States Radium Corp | Silicon sensitized rare earth oxysulfide phosphors |
-
1976
- 1976-11-29 US US05/746,034 patent/US4107070A/en not_active Expired - Lifetime
-
1977
- 1977-10-07 DE DE2745286A patent/DE2745286C3/de not_active Expired
- 1977-10-26 NL NL7711753A patent/NL7711753A/xx not_active Application Discontinuation
- 1977-10-31 IT IT29205/77A patent/IT1143769B/it active
- 1977-11-16 CA CA291,071A patent/CA1080957A/fr not_active Expired
- 1977-11-28 JP JP14257777A patent/JPS5368688A/ja active Granted
- 1977-11-29 FR FR7735823A patent/FR2372220A1/fr active Granted
- 1977-11-29 BE BE183028A patent/BE861318A/fr not_active IP Right Cessation
- 1977-11-29 GB GB49667/77A patent/GB1576368A/en not_active Expired
-
1979
- 1979-06-20 JP JP7796179A patent/JPS5526591A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3515675A (en) * | 1966-12-27 | 1970-06-02 | Lockheed Aircraft Corp | Method for making luminescent materials |
US3725704A (en) * | 1971-01-28 | 1973-04-03 | Lockheed Aircraft Corp | Rare earth phosphors for x-ray conversion screens |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010015955A3 (fr) * | 2008-08-07 | 2011-01-20 | Koninklijke Philips Electronics N.V. | Matériau scintillant et filtre spectral apparenté |
Also Published As
Publication number | Publication date |
---|---|
DE2745286A1 (de) | 1978-06-01 |
CA1080957A (fr) | 1980-07-08 |
JPS5368688A (en) | 1978-06-19 |
JPS5526591A (en) | 1980-02-26 |
DE2745286B2 (de) | 1979-02-22 |
JPS559029B2 (fr) | 1980-03-07 |
DE2745286C3 (de) | 1979-10-11 |
IT1143769B (it) | 1986-10-22 |
BE861318A (fr) | 1978-05-29 |
GB1576368A (en) | 1980-10-08 |
NL7711753A (nl) | 1978-05-31 |
US4107070A (en) | 1978-08-15 |
FR2372220B1 (fr) | 1980-06-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |