| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an imaging device in which spatial resolution has been improved. SOLUTION: A device includes a scintillator 150 with first and second surfaces 160 and 162, a photo sensor array 110 that is optically coupled to the second surface of the scintillator, and an optical crosstalk attenuation means 200 that is optically coupled to the first surface of the scintillator, is arranged for preventing a photon entering the first surface of the scintillator from being reflected along a crosstalk reflection path 185 and returning into the scintillator, and has at least a light-absorbing material. The device further preferably includes an optical screen layer that is optically coupled to the second surface of the scintillator and is constituted by an essentially transparent material with a critical refractive index that is selected so that an entering photon is selectively reflected toward the inside to reduce optical crosstalk.</p> |
