GB424195A - Improvements in fluorescent substances - Google Patents
Improvements in fluorescent substancesInfo
- Publication number
- GB424195A GB424195A GB1960933A GB1960933A GB424195A GB 424195 A GB424195 A GB 424195A GB 1960933 A GB1960933 A GB 1960933A GB 1960933 A GB1960933 A GB 1960933A GB 424195 A GB424195 A GB 424195A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nickel
- sulphide
- activator
- silver
- screen
- 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
Links
- 239000000126 substance Substances 0.000 title 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 8
- 229910052759 nickel Inorganic materials 0.000 abstract 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 239000012190 activator Substances 0.000 abstract 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 108010010803 Gelatin Proteins 0.000 abstract 1
- 239000000020 Nitrocellulose Substances 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 239000005083 Zinc sulfide Substances 0.000 abstract 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- FRLJSGOEGLARCA-UHFFFAOYSA-N cadmium sulfide Chemical class [S-2].[Cd+2] FRLJSGOEGLARCA-UHFFFAOYSA-N 0.000 abstract 1
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 229920000159 gelatin Polymers 0.000 abstract 1
- 239000008273 gelatin Substances 0.000 abstract 1
- 235000019322 gelatine Nutrition 0.000 abstract 1
- 235000011852 gelatine desserts Nutrition 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 229920001220 nitrocellulos Polymers 0.000 abstract 1
- 230000002688 persistence Effects 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 abstract 1
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)
- Luminescent Compositions (AREA)
Abstract
424,195. Fluorescent screens. LEVY, L. A., WEST, D. W., 31, Shoot-up Hill, Cricklewood, London, and ILFORD, Ltd., 23, Roden Street, lIford, Essex. July 11, 1933, No. 19609. [Class 98 (i)] A screen for X-ray or cathode-ray work, exhibiting little after-glow or persistence of latent image, comprises zinc sulphide, or a mixture of zinc and cadmium sulphides, with or without an activator such as silver, and containing minute traces of nickel. The ratio of nickel to the sulphide or sulphide mixture lies between about 1/500,000 and 1/3,000,000, and is preferably 1 /1,000,000. The screen may contain a non-active binder such as gelatin, or cellulose nitrate or acetate. The sulphide is prepared in a highly pure state, as free as possible from heavy metals such as copper, iron, manganese, or vanadium, and preferably also from lighter metals such as alkali or alkaline earth metals ; the activator (e.g. silver in the form of a salt) and nickel (e.g. in the form of chloride) are added ; and the whole is uniformly mixed and heated strongly, e.g. to 1200-1300‹ C., if desired in the presence of a fusible salt, e.g. sodium chloride. The Provisional Specification refers also to cobalt as an alternative to nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1960933A GB424195A (en) | 1933-07-11 | 1933-07-11 | Improvements in fluorescent substances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1960933A GB424195A (en) | 1933-07-11 | 1933-07-11 | Improvements in fluorescent substances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB424195A true GB424195A (en) | 1935-02-11 |
Family
ID=10132200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1960933A Expired GB424195A (en) | 1933-07-11 | 1933-07-11 | Improvements in fluorescent substances |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB424195A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE747208C (en) * | 1939-02-08 | 1944-09-15 | Telefunken Gmbh | Process for increasing the brightness of silver-activated luminophores |
| US2423830A (en) * | 1943-03-25 | 1947-07-15 | Gen Electric | Cathode-ray screen having contrasting colors and unlike rates of decay of luminescence |
| US2454499A (en) * | 1944-11-21 | 1948-11-23 | United States Radium Corp | X-ray screen |
-
1933
- 1933-07-11 GB GB1960933A patent/GB424195A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE747208C (en) * | 1939-02-08 | 1944-09-15 | Telefunken Gmbh | Process for increasing the brightness of silver-activated luminophores |
| US2423830A (en) * | 1943-03-25 | 1947-07-15 | Gen Electric | Cathode-ray screen having contrasting colors and unlike rates of decay of luminescence |
| US2454499A (en) * | 1944-11-21 | 1948-11-23 | United States Radium Corp | X-ray screen |
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