| 摘要 |
PROBLEM TO BE SOLVED: To provide an alkali halide-based fluorescent substance increased in stimulated luminescent levels, and to provide a radiographic transformation panel of high sensitivity. SOLUTION: This fluorescent substance is shown by the fundamental compositional formula:CsBr:xEu (wherein, x is a numerical value satisfying the relationship: 0<x<=0.2), being a europium-activated cesium bromide-based fluorescent substance; wherein the ratio for Eu2+ and Eu3+ each contained in this fluorescent substance satisfies the relationship: 5×10-5<=Eu3+/Eu2+<=0.1 in terms of emission intensity ratio.
|
