PROBLEM TO BE SOLVED: To provide an X-ray diagnostic apparatus such as an X-ray CT capable of performing power saving and smooth start of operation.SOLUTION: The X-ray diagnostic apparatus includes a control means 8 for controlling on-off of power supply to the temperature regulating means 32 of an X-ray detector 24. The control means 8 is provided with: a setting means 81 for setting a desired operation start time based on input from an operator a determination means which identifies a physical amount relative to a period required for the temperature of the detector to reach an operation temperature from the start of temperature regulation by turning on the power supply to the temperature regulating means 32 until entering the range of operation temperature, such as the past measured result and the ambient temperature of the time required to reach the operation temperature, and determines the period of warming up the X-ray detector 24 performed before the operation start time based on the physical amount and on-means 83 to 85 which turn on the power supply to the temperature regulating means 32 at the time preceding the operation start time by the period of warming up.COPYRIGHT: (C)2011,JPO&INPIT【課題】 省電力化と円滑な稼動開始とが可能なX線CT等のX線診断装置を提供する。【解決手段】 X線検出器24の温度調節手段32への電源供給のオン・オフを制御する制御手段8を備えている。制御手段8は、操作者からの入力を基に所望の稼動開始時刻を設定する設定手段81と、温度調節手段32への電源供給をオンして温度調節を開始してから検出器温度が稼動温度範囲に入るまでの稼動温度到達所要時間と相関のある物理量、例えば稼動温度到達所要時間の過去の測定結果や周囲温度などを特定し、当該物理量に基づいて稼動開始時刻前に行うX線検出器24のウォームアップ時間を決定する決定する決定手段82と、稼動開始時刻よりウォームアップ時間だけ前の時刻に温度調節手段32への電源供給をオンするオン手段83~85とを備える。【選択図】 図3
