PROBLEM TO BE SOLVED: To prevent a subject from moving in right and left directions during standing position X-ray imaging of the entire lower limbs or the entire vertebrae.SOLUTION: In addition to the regulation of only movements in front and back directions by a conventional planar screen, a structure for regulating the movements in right and left directions is added by providing a screen with a U-shaped or curved recess or the like to fit a subject or providing a screen with a partition plate capable of changing the width to fit the subject or the like. In such a manner, degradation of images is prevented, and a plurality of images for which split imaging is executed are also joined correctly.COPYRIGHT: (C)2012,JPO&INPIT【課題】全下肢や全脊椎の立位X線撮影時に、被験者が左右方向に動かないようにする。【解決手段】従来の平面衝立による前後方向の動きのみの規制に加え、衝立に被検者がはまり込むコの字形または湾曲したくぼみ等を設け、また、衝立に被検者がはまり込む幅を変えることのできる仕切り板を設けるなど、左右方向の動きを規制する構造を付加する。そうすることで、画像の劣化が防がれ、分割撮影した複数枚の画像の接合も正しく行うことができる。【選択図】 図1