Ceramic scintillator array, X-ray detector, and X-ray inspection device

A ceramic scintillator array comprising:

• a plurality of scintillator segments each composed of a sintered compact of a rare earth oxysulfide phosphor;
• a first reflective layer interposed between the scintillator segments adjacent to each other in a manner to integrate the plurality of scintillator segments, the first reflective layer comprising a first transparent resin and first reflective particles dispersed in the first transparent resin;
• and
• a second reflective layer arranged on a side of surfaces on which an X-ray is incident of the plurality of scintillator segments, the second reflective layer comprising a second transparent resin and second reflective particles dispersed in the second transparent resin;
• wherein a glass transition point of the first transparent resin is 60° C. or higher, and a molecular structure of the first transparent resin has a cyclo structure including no double bond,
• wherein a glass transition point of the second transparent resin is 30° C. or lower, and a molecular structure of the second transparent resin has a double bond,
• wherein the first reflective layer contains, by mass ratio, 15% or more and 60% or less of the first transparent resin and 40% or more and 85% or less of the first reflective particles, and
• wherein the second reflective layer contains, by mass ratio, 15% or more and 60% or less of the second transparent resin and 40% or more and 85% or less of the second reflective particles.