PROBLEM TO BE SOLVED: To provide an X-ray CT apparatus performing temperature control of an X-ray detection part without using a heating means such as a heater.SOLUTION: The X-ray CT apparatus includes a rotation base mounted with a plurality of units including an X-ray generation part irradiating X-rays to a test subject and the X-ray detection part detecting the X-rays transmitted through the test subject. The X-ray CT apparatus also includes a path part communicating the X-ray detection part, the X-ray generation part, and at least one of the other units except the X-ray detection part. The X-ray CT apparatus further includes an air supply part sending air of the other unit to the X-ray detection part through the path part. The X-ray CT apparatus also includes a temperature measurement part measuring a temperature inside the X-ray detection part. The X-ray CT apparatus also includes a control part performing operation control of the air supply part based on a measurement result by the temperature measurement part.COPYRIGHT: (C)2012,JPO&INPIT【課題】ヒータのような加温手段を用いることなくX線検出部の温度制御を行うことができるX線CT装置の提供。【解決手段】実施形態に係るX線CT装置は、被検体にX線を照射するX線発生部及び被検体を透過したX線を検出するX線検出部とを含む複数のユニットを搭載したローテーションベースを有する。また、X線検出部とX線発生部及びX線検出部を除く他のユニットの少なくとも一つとを連通する経路部を有する。また他のユニットの空気を、経路部を介してX線検出部に送る送気部を有する。またX線検出部内の温度を計測する温度計測部を有する。また温度計測部による計測結果に基づいて送気部の動作制御を行う制御部を有する。【選択図】図4
