JPS6454093A - Phosphor - Google Patents
PhosphorInfo
- Publication number
- JPS6454093A JPS6454093A JP19063288A JP19063288A JPS6454093A JP S6454093 A JPS6454093 A JP S6454093A JP 19063288 A JP19063288 A JP 19063288A JP 19063288 A JP19063288 A JP 19063288A JP S6454093 A JPS6454093 A JP S6454093A
- Authority
- JP
- Japan
- Prior art keywords
- compd
- contg
- phosphor
- excitation
- predetermined proportions
- 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.)
- Pending
Links
Landscapes
- Measurement Of Radiation (AREA)
- Luminescent Compositions (AREA)
Abstract
PURPOSE:To obtain a phosphor having a short afterglow duration in a high conversion efficiency, by mixing predetermined proportions of a compd. contg. an element selected from Y, La and Gd, a compd. contg. an element selected from Pr, Tb and Eu a compd. contg. a halogen element and an S-contg. compd., together and burning the mixture. CONSTITUTION:A compd. of at least one element (A) selected from Y, La and Gd, a compd. of at least one element (Ln) selected from Pr, Tb and Eu, a compd. of at east one element (X) selected from F, Cl and Br and an S-contg. compd. or a mixture capable of forming a sulfide of an alkali metal upon heating, as starting materials, are mixed together in predetermined proportions and burnt at 900-1,300 deg.C to prepare a phosphor of the formula (wherein A, Ln and X are elements defined above, the amt. of X being in the range of 0-1,000wt.ppm; and 0.000003<=x<=0.2, 0.000001<=y<=0.005) of which the average of fluorescence output values for 2-14msec after discontinuation of excitation by radiation is about 1/500 or below of the fluorescence output during the excitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19063288A JPS6454093A (en) | 1980-04-25 | 1988-08-01 | Phosphor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5415680A JPS56151376A (en) | 1980-04-25 | 1980-04-25 | Radiation detector |
| JP19063288A JPS6454093A (en) | 1980-04-25 | 1988-08-01 | Phosphor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6454093A true JPS6454093A (en) | 1989-03-01 |
Family
ID=26394896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19063288A Pending JPS6454093A (en) | 1980-04-25 | 1988-08-01 | Phosphor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6454093A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999002622A1 (en) * | 1997-07-08 | 1999-01-21 | Hitachi Medical Corporation | Phosphor, and radiation detector and x-ray ct unit each equipped therewith |
| JP2012220348A (en) * | 2011-04-08 | 2012-11-12 | Toshiba Corp | X-ray detector and x-ray inspection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5397986A (en) * | 1976-06-25 | 1978-08-26 | Dainippon Toryo Co Ltd | Fluorescent substance, and radiation image converter, discharge lamp and cathode-ray tube using the same |
| JPS53119794A (en) * | 1977-03-28 | 1978-10-19 | Philips Nv | X ray detector |
| JPS53131987A (en) * | 1977-04-11 | 1978-11-17 | Lockheed Missiles Space | Rare earth phosphorescent substance |
| JPS5490089A (en) * | 1977-11-21 | 1979-07-17 | Gen Electric | Fluorescent substance distribution type scintillator structure and its manufacture |
| JPS5523102A (en) * | 1976-06-25 | 1980-02-19 | Dainippon Toryo Co Ltd | Fluophor and radiation-sensitive image convertor |
-
1988
- 1988-08-01 JP JP19063288A patent/JPS6454093A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5397986A (en) * | 1976-06-25 | 1978-08-26 | Dainippon Toryo Co Ltd | Fluorescent substance, and radiation image converter, discharge lamp and cathode-ray tube using the same |
| JPS5523102A (en) * | 1976-06-25 | 1980-02-19 | Dainippon Toryo Co Ltd | Fluophor and radiation-sensitive image convertor |
| JPS53119794A (en) * | 1977-03-28 | 1978-10-19 | Philips Nv | X ray detector |
| JPS53131987A (en) * | 1977-04-11 | 1978-11-17 | Lockheed Missiles Space | Rare earth phosphorescent substance |
| JPS5490089A (en) * | 1977-11-21 | 1979-07-17 | Gen Electric | Fluorescent substance distribution type scintillator structure and its manufacture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999002622A1 (en) * | 1997-07-08 | 1999-01-21 | Hitachi Medical Corporation | Phosphor, and radiation detector and x-ray ct unit each equipped therewith |
| JP2012220348A (en) * | 2011-04-08 | 2012-11-12 | Toshiba Corp | X-ray detector and x-ray inspection device |
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