Stable fiber optic scintillative X-ray screen and method of production
US4101781A · kind A · utility
19Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1977 |
| Grant date | Jul 18, 1978 |
| Priority date | — |
| Expiry date | Jun 27, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K4/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An X-ray intensifying screen pair comprising a thin screen and a fiber optic thick screen is disclosed, together with a method for producing the fiber optic thick screen, which method includes the steps of evaporation and vacuum deposition. The thin screen comprises a gadolinium oxysulphide rare earth scintillator capable of providing good image resolution, and the fiber optic thick screen comprises a thallium doped cesium iodide scintillator that is capable of high speed (i.e., good X-ray photon-stopping and photon-conversion) operation, that is stable under ambient conditions, and that requires low patient dosage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.