PROBLEM TO BE SOLVED: To provide an MRI apparatus capable of cooling a gradient magnetic field power source and a gradient magnetic field coil depending on a sequence.SOLUTION: The MRI apparatus includes: a cooling unit 107 which water-cools a gradient magnetic field generation system by setting target command values of the quantity of water and a water flow a temperature sensor 105b which detects the quantity of water, the water flow and the temperature of the cooling unit and a sequencer 4 which sets and controls the target command values of the quantity of water and the water flow on the basis of a sequence command value imparted into each axis of the gradient magnetic field generation system, with respect to the quantity of water, the water flow and the temperature of the cooling unit, detected by a detector.COPYRIGHT: (C)2013,JPO&INPIT【課題】シーケンスに応じて傾斜磁場電源や傾斜磁場コイルを冷却することが可能なMRI装置を提供する。【解決手段】傾斜磁場発生系を水量と水流の目標指令値を設定して水冷する冷却部107と、前記水量と水流および冷却部の温度を検出する温度センサ105bと、該検出器で検出した水量と水流および冷却部の温度を、前記傾斜磁場発生系の軸ごとに与えられたシーケンス指令値に基づき前記水量と水流の目標指令値を設定制御するシーケンサ4と備える。【選択図】図2
