PROBLEM TO BE SOLVED: To prevent re-imaging or a long waiting time of image transfer due to a change in a wireless communication environment.SOLUTION: An X-ray imaging apparatus that communicates with a control apparatus comprises: a wireless communication unit configured to communicate with a control apparatus； a measurement unit configured to measure first and second wireless parameters representing a wireless communication environment； a movement stop detection unit configured to detect a movement stop of the X-ray imaging apparatus based on a temporal variation in the first wireless parameter； a wireless environment determination unit configured to determine stability or instability of the wireless communication environment based on a temporal variation in the second wireless parameter； and an output unit configured to output, to the control apparatus, a signal to prohibit an X-ray generation apparatus connected to the control apparatus from performing exposure based on a detection result of the movement stop detection unit and a determination result of the wireless environment determination unit.【課題】無線通信環境の変化に起因する再撮影や画像転送の大幅な待ち時間の発生を未然に防ぐ。【解決手段】制御装置と通信するＸ線撮影装置であって、制御装置と通信する無線通信部と、無線通信環境を示す第１および第２の無線パラメータを測定する測定部と、第１の無線パラメータの時間的変動に基づいて、Ｘ線撮影装置の移動停止を検出する移動停止検出部と、第２の無線パラメータの時間的変動に基づいて、無線通信環境の安定または不安定を判定する無線環境判定部と、移動停止検出部による検出結果および無線環境判定部による判定結果に基づいて、制御装置と接続されるＸ線生成装置に曝射を禁止させるための信号を制御装置へ出力する出力部と、を備える。【選択図】 図２
