PROBLEM TO BE SOLVED: To provide a radiation imaging device capable of stably acquiring a high quality image by preventing deformation of columnar fluorescent body on a fluorescent body layer between a plurality of imaging substrates.SOLUTION: The radiation imaging device comprises: a fixed substrate 110 a plurality of imaging substrates 120 which are disposed in a plane on the fixed substrate 110 and a fluorescent body layer 130 including a plurality of columnar fluorescent bodies 130a disposed parallelly on the plurality of imaging substrates 120. The fluorescent body layer 130 is divided into imaging substrates 120 in each columnar fluorescent body group 130A, the neighboring columnar fluorescent body groups 130A are separated from each other with at least a part of sides being in contact with each other columnar in fluorescent body 130a.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】複数の撮像基板間において、蛍光体層の柱状蛍光体の変形が抑制されて安定した高画質を得ることができる放射線撮像装置を実現する。【解決手段】固定基板110と、固定基板110上に平面状に配列した複数の撮像基板120と、複数の撮像基板120上に複数の柱状蛍光体130aが並列してなる蛍光体層130とを備えており、蛍光体層130は、撮像基板120ごとに柱状蛍光体群130Aに分割されており、隣り合う柱状蛍光体群130Aは、側面の柱状蛍光体130a同士が少なくとも一部分で接しつつ分離している。【選択図】図2
