Luminescent material and preparation and use thereof
US4195226A · kind A · utility
6Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1978 |
| Grant date | Mar 25, 1980 |
| Priority date | — |
| Expiry date | Aug 28, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2023
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Pentaphosphates of the formula XP.sub.5 O.sub.14, wherein X is a rare earth metal, respond to incident ionizing radiation by emitting secondary electromagnetic radiation which may be visible or may be made visible by doping with other rare earth metal pentaphosphates or mixtures of Mn and Sb ions. The pentaphosphates of Ce and Pr respond quickly to cessation of incident radiation so that they are used to advantage in scintillators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.