Patent · US Expired

Glass for radio-photoluminescence dosimetry

US4204976A · kind A · utility

1Cited by

4References

7Claims

0Family size

Assignee

Jenaer Glaswerk, Schott & Gen. · DE

Inventors

Walter Jahn · Ehningen, DE
Werner Schumann · Pulheim, DE

Key dates

Filing date	Jul 14, 1978
Grant date	May 27, 1980
Priority date	—
Expiry date	Jul 14, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C4/12
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Lithium-free silver-activated phosphate glass suitable for use in radio-photoluminescence dosimetry and having improved chemical resistance, particularly to weathering, is provided by controlling the alkali metal metaphosphate content in the glass compositions to not more than 26% by weight, preferably 15-26% by weight, and the alkaline earth metaphosphate content to at least 16% by weight, preferably 16-27% by weight, based on the total composition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.