PROBLEM TO BE SOLVED: To improve characteristics of a radiation image conversion panel.SOLUTION: The radiation image conversion panel 2 including a support body 11 and a phosphor 18 which contains a fluorescent substance which emits fluorescence by exposure to radiation and is formed on the support body includes a columnar portion 34 formed of the group of a columnar crystal formed by growing the crystal of the fluorescent substance in a columnar shape and a non-columnar portion 36, the columnar portion and the non-columnar portion are integrally formed so as to overlap with each other in a crystal growth direction of the columnar portion, the non-columnar portion includes a plurality of layers having different void ratios, and the void ratio of a lower layer 36A in contact with the support body is smaller than that of an upper layer 36B in contact with the columnar portion.COPYRIGHT: (C)2012,JPO&INPIT【課題】放射線画像変換パネルの特性を向上させる。【解決手段】支持体11と、放射線露光によって蛍光を発する蛍光物質を含有し、前記支持体上に形成された蛍光体18とを備える放射線画像変換パネル2は、前記蛍光物質の結晶が柱状に成長してなる柱状結晶の群によって形成された柱状部34と、非柱状部36と、を有し、前記柱状部及び前記非柱状部は、前記柱状部における結晶成長方向に重なって一体に形成されており、前記非柱状部は、互いに空隙率の異なる複数の層を含み、前記支持体に接する下層36Aの空隙率が、前記柱状部に接する上層36Bの空隙率より小さい。【選択図】図3
