FR2344618A1 - Moisture resistant phosphorescent X:ray reinforcement screens - having phosphorescent halogen contg. particles treated with organo-metallic cpds. - Google Patents
Moisture resistant phosphorescent X:ray reinforcement screens - having phosphorescent halogen contg. particles treated with organo-metallic cpds.Info
- Publication number
- FR2344618A1 FR2344618A1 FR7620040A FR7620040A FR2344618A1 FR 2344618 A1 FR2344618 A1 FR 2344618A1 FR 7620040 A FR7620040 A FR 7620040A FR 7620040 A FR7620040 A FR 7620040A FR 2344618 A1 FR2344618 A1 FR 2344618A1
- Authority
- FR
- France
- Prior art keywords
- phosphorescent
- organo
- moisture resistant
- particles treated
- contg
- 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
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7772—Halogenides
-
- 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)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Halogen-contg. phosphorescent particles are rendered less susceptible to the deleterious effects of moisture by treatment with >=1 organometallic cpd. (I). (I) is pref. applied to the surface of the particles using a suitable binder, (resin e.g. ABS) e.g. by milling the components together in an organic solvent. Process is esp. useful for making phosphorescent X-ray reinforcement screens less sensitive to loss of fluorescing capacity due to the effects of moisture. Suitable (I) are e.g. water insoluble metal carboxylates, tin mercaptides, triphenyl antimony, triphenylbismuth or tetraphtenyltin.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE1007476A BE843479A (en) | 1975-08-25 | 1976-06-28 | NON-RETURN VALVE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2344618A1 true FR2344618A1 (en) | 1977-10-14 |
FR2344618B1 FR2344618B1 (en) | 1979-01-12 |
Family
ID=3862843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7620040A Granted FR2344618A1 (en) | 1976-06-28 | 1976-06-29 | Moisture resistant phosphorescent X:ray reinforcement screens - having phosphorescent halogen contg. particles treated with organo-metallic cpds. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2344618A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0000792A1 (en) * | 1977-07-20 | 1979-02-21 | Agfa-Gevaert N.V. | X-ray image intensifying screens |
EP0000961A1 (en) * | 1977-08-31 | 1979-03-07 | Agfa-Gevaert N.V. | Phosphor-containing compositions and their use in X-ray photography. |
EP0003151A1 (en) * | 1978-01-16 | 1979-07-25 | Agfa-Gevaert N.V. | Improved X-ray image intensifying screens comprising rare earth oxyhalide phosphor particles |
FR2422981A1 (en) * | 1978-03-22 | 1979-11-09 | Ciba Geigy Ag | X-RAY STRENGTHENING SCREEN |
-
1976
- 1976-06-29 FR FR7620040A patent/FR2344618A1/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0000792A1 (en) * | 1977-07-20 | 1979-02-21 | Agfa-Gevaert N.V. | X-ray image intensifying screens |
EP0000961A1 (en) * | 1977-08-31 | 1979-03-07 | Agfa-Gevaert N.V. | Phosphor-containing compositions and their use in X-ray photography. |
EP0003151A1 (en) * | 1978-01-16 | 1979-07-25 | Agfa-Gevaert N.V. | Improved X-ray image intensifying screens comprising rare earth oxyhalide phosphor particles |
FR2422981A1 (en) * | 1978-03-22 | 1979-11-09 | Ciba Geigy Ag | X-RAY STRENGTHENING SCREEN |
Also Published As
Publication number | Publication date |
---|---|
FR2344618B1 (en) | 1979-01-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
DL | Decision of the director general to leave to make available licences of right | ||
ST | Notification of lapse | ||
RC | Opposition against decision of lapse | ||
BR | Restoration of rights |