Patent ID: 10562785

Abstract:
A fluorescent material has a composition represented by (Gd1−α−β−γRαCeβTbγ)3+a(Al1−u−vGauScv)5−bO12, wherein: R is at least one of Y and Lu; a, b, α, β, γ, u and v satisfy ranges below: 0≤a ≤0.1,0≤b≤0.1,0≤α≤0.8,0.0003≤β≤0.005,0.02≤γ≤0.2,0.27≤u≤0.75, and 0≤v≤0.02;a relative density is 99% or more; and an effective atomic number is 35 or more and 60 or less.