FR2355899A1 - Substances luminescentes et convertisseurs d'images de rayons x les utilisant - Google Patents
Substances luminescentes et convertisseurs d'images de rayons x les utilisantInfo
- Publication number
- FR2355899A1 FR2355899A1 FR7719411A FR7719411A FR2355899A1 FR 2355899 A1 FR2355899 A1 FR 2355899A1 FR 7719411 A FR7719411 A FR 7719411A FR 7719411 A FR7719411 A FR 7719411A FR 2355899 A1 FR2355899 A1 FR 2355899A1
- Authority
- FR
- France
- Prior art keywords
- alkaline earth
- ray image
- phosphors
- activated alkaline
- image converters
- 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
-
- 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
- C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
- C09K11/779—Halogenides
- C09K11/7791—Halogenides with alkali or alkaline earth metals
-
- 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
- C09K11/7713—Sulfates
-
- 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
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/7732—Halogenides
- C09K11/7733—Halogenides with alkali or alkaline earth metals
-
- 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
- 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)
Abstract
L'invention concerne une substance luminescente halogénure complexe. Elle est représentée par la formule de composition suivante : (Me1-f ,Mgf )F2 .aMe'X2 .bKX'.cMe''SO4 :dEu**2+,eTb**3 où Me, Me' et Me" représentent chacun au moins un des métaux alcalino-terreux du groupe constitué par le baryum, le strontium et le calcium; X et X' représentent chacun au moins un des halogènes chlore et brome; et a, b, c, d, e et f sont des nombres définis par une des cinq combinaisons suivantes : 1. 0,80 <= a 1 <= 1,50, 0,10 <= b1 <= 1,50, c1 = 0, 0,001 <= d1 <= 0,20, e1 = 0 et f1 = 0. 2. 0,30 <= a2 <= 1,50, 0,10 <= b2 <= 2,00, 0,01 <= c2 <= 1,00, 0,001 <= d2 <= 0,20, c2 = 0 et f2 = 0. 3. a3 = 1, b3 = 0, c3 = 0, 0,01 <= d3 <= 0,10, 0 < e3 <= 0,05 et f3 = 0. 4. a4 = 1, b4 = 0, c4 = 0, 0,001 <= d4 <= 0,20, e4 = 0 et 0 < f4 = 1. 5. a5 = 1, 0 < b5 <= 1,5, c5 = 0, 0,001 <= d5 <= 0,20, e5 = 0 et 0 < f5 <= 1. Sur la figure, on a représenté le spectre d'émission d'une substance du type de la combinaison 1 lors d'une excitation par rayons X. Application à un convertisseur d'images de rayons X utilisant cette substance luminescente.
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7527076A JPS5523102A (en) | 1976-06-25 | 1976-06-25 | Fluophor and radiation-sensitive image convertor |
JP7526776A JPS5474290A (en) | 1976-06-25 | 1976-06-25 | Phopshor, method of making same, raoiation image converter, discharge lamp and cathode-ray tube employing same |
JP7526876A JPS5397986A (en) | 1976-06-25 | 1976-06-25 | Fluorescent substance, and radiation image converter, discharge lamp and cathode-ray tube using the same |
JP9684676A JPS5474289A (en) | 1976-08-13 | 1976-08-13 | Radiation sensitive paper |
JP12089676A JPS5395188A (en) | 1976-10-08 | 1976-10-08 | Fluorescent substance and radiation image converter using the same |
JP12089576A JPS5395187A (en) | 1976-10-08 | 1976-10-08 | Fluorescent substance, and radiation image converter and thermoluminescence dosimeter element using the same |
JP12328876A JPS5397984A (en) | 1976-10-14 | 1976-10-14 | Fluorescent substance and radiation image converter using the same |
JP14532576A JPS5397985A (en) | 1976-12-03 | 1976-12-03 | Radiation intensifying screen |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2355899A1 true FR2355899A1 (fr) | 1978-01-20 |
FR2355899B1 FR2355899B1 (fr) | 1983-05-20 |
Family
ID=27572672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7719411A Granted FR2355899A1 (fr) | 1976-06-25 | 1977-06-24 | Substances luminescentes et convertisseurs d'images de rayons x les utilisant |
Country Status (3)
Country | Link |
---|---|
DE (2) | DE2728524C3 (fr) |
FR (1) | FR2355899A1 (fr) |
NL (1) | NL173975C (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0021342A1 (fr) * | 1979-06-19 | 1981-01-07 | Kasei Optonix, Ltd. | Substance luminescente |
EP0240053A1 (fr) * | 1986-03-19 | 1987-10-07 | Koninklijke Philips Electronics N.V. | Ecran de conversion pour rayonnement |
WO1999017340A1 (fr) * | 1997-09-29 | 1999-04-08 | Conseil Des Ecoles Polytechniques Federales De La Confederation Helvetique | Lampe electrique a decharge |
-
1977
- 1977-06-24 FR FR7719411A patent/FR2355899A1/fr active Granted
- 1977-06-24 DE DE19772728524 patent/DE2728524C3/de not_active Expired
- 1977-06-24 DE DE19772759675 patent/DE2759675C2/de not_active Expired
- 1977-06-24 NL NL7707040A patent/NL173975C/xx not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0021342A1 (fr) * | 1979-06-19 | 1981-01-07 | Kasei Optonix, Ltd. | Substance luminescente |
EP0240053A1 (fr) * | 1986-03-19 | 1987-10-07 | Koninklijke Philips Electronics N.V. | Ecran de conversion pour rayonnement |
WO1999017340A1 (fr) * | 1997-09-29 | 1999-04-08 | Conseil Des Ecoles Polytechniques Federales De La Confederation Helvetique | Lampe electrique a decharge |
US6376982B1 (en) | 1997-09-29 | 2002-04-23 | Universite De Geneve | Electric discharge lamp and luminescent material and compound |
Also Published As
Publication number | Publication date |
---|---|
DE2728524C3 (de) | 1982-05-06 |
DE2728524A1 (de) | 1978-03-16 |
NL7707040A (nl) | 1977-12-28 |
NL173975C (nl) | 1984-04-02 |
FR2355899B1 (fr) | 1983-05-20 |
NL173975B (nl) | 1983-11-01 |
DE2759675C2 (fr) | 1988-06-30 |
DE2728524B2 (de) | 1981-07-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property |