PROBLEM TO BE SOLVED: To provide a radiation imaging device enabling both securing of high rigidity and securing of high thermal uniformity.SOLUTION: A radiation imaging device includes a radiation sensor panel, an integrated circuit, and a housing which contains a substantially rectangular plate-like member having a wider surface than a region on which the radiation sensor panel is orthogonally projected and houses the radiation sensor panel and the integrated circuit. The plate-like member contains a first carbon fiber-reinforced resin 131, a second carbon fiber-reinforced resin 131 and a third carbon fiber-reinforced resin 132 arranged between the first carbon fiber-reinforced resin 131 and the second carbon fiber-reinforced resin 131. At least one of the first carbon fiber-reinforced resin 131 and the second carbon fiber-reinforced resin 131 is arranged so that rigidity in a second direction parallel to a diagonal line of the plate-like member becomes higher than rigidity in a first direction parallel to one side of the plate-like member, and the third carbon fiber-reinforced resin 132 is arranged so that a heat conductivity to the first direction becomes higher than a heat conductivity to the second direction.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT【課題】高い剛性の確保と高い熱均一性の確保の両立が可能な放射線撮像装置を提供する。【解決手段】放射線センサパネルと、集積回路と、放射線センサパネルが正射影された領域よりも広い面を有する略方形の板状部材を含み放射線センサパネルと集積回路とを収容する筐体と、を有し、板状部材は、第1炭素繊維強化樹脂131と、第2炭素繊維強化樹脂131と、第1炭素繊維強化樹脂131と第2炭素繊維強化樹脂131の間に配置された第3炭素繊維強化樹脂132と、を含み、第1炭素繊維強化樹脂131及び第2炭素繊維強化樹脂131のうちの少なくとも一方は、板状部材の一辺と平行な第1方向に対する剛性よりも板状部材の対角線と平行な第2方向に対する剛性が高くなるように配置され、第3炭素繊維強化樹脂132は、第1方向に対する熱伝導率が第2方向に対する熱伝導率よりも高くなるように配置されている。【選択図】図3
