Patent · US Active

Scintillation compound including a rare earth element and a process of forming the same

US9868900B2 · kind B2 · utility

2Cited by

35References

16Claims

0Family size

Inventors

Samuel Blahuta · Fontenay-sous-Bois, FR
Eric Mattmann · Paris, FR
Damien Pauwels · Mandelieu-la-Napoule, FR
Bruno Viana · Montgeron, FR

Key dates

Filing date	Sep 16, 2015
Grant date	Jan 16, 2018
Priority date	—
Expiry date	Mar 17, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01T1/2023
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A scintillation compound can include a rare earth element that is in a divalent (RE2+) or a tetravalent state (RE4+). The scintillation compound can include another element to allow for better change balance. The other element may be a principal constituent of the scintillation compound or may be a dopant or a co-dopant. In an embodiment, a metal element in a trivalent state (M3+) may be replaced by RE4+ and a metal element in a divalent state (M2+). In another embodiment, M3+ may be replaced by RE2+ and M4+. In a further embodiment, M2+ may be replaced by a RE3+ and a metal element in a monovalent state (M1+). The metal element used for electronic charge balance may have a single valance state, rather than a plurality of valence states, to help reduce the likelihood that the valance state would change during formation of the scintillation compound.

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