PROBLEM TO BE SOLVED: To provide a low-noise magnetic resonance imaging apparatus 100.SOLUTION: The magnetic resonance apparatus comprises: a magnet 1 for generating a static magnetic field 6 on an imaging region 9 a gradient magnetic field coil 2 for generating a gradient magnetic field 10 with inclined intensity distribution on the imaging region 9 an exterior cover 13 for covering the magnet 1 and the gradient magnetic field coil 2 a first conductive member 16 provided on the exterior cover 13 and a second conductive member 15 that is provided on the magnet 1 or the exterior cover 13, electrically insulated from the first conductive member 16, and is relatively independently movable, with approximated to the first conductive member. The surface of the first conductive member 16 and the surface of the second conductive member 15 face in parallel with each other. A spacer may be partially provided or a spacer with elasticity lower than that of the exterior cover may be provided between the first conductive member 16 and the second conductive member 15 such that the first conductive member 16 and the second conductive member 15 vibrate mutually independently.COPYRIGHT: (C)2014,JPO&INPIT【課題】低騒音の磁気共鳴イメージング装置100を提供する。【解決手段】撮像領域9に静磁場6を発生させる磁石1と、撮像領域9に傾斜した強度分布を持つ傾斜磁場10を発生させる傾斜磁場コイル2と、磁石1と傾斜磁場コイル2を覆う外装カバー13を備え、外装カバー13に設けられた第1導電性部材16と、磁石1又は外装カバー13に設けられ第1導電性部材16とは電気的に絶縁され第1導電性部材16に近接したまま相対的に独立して移動しうる第2導電性部材15とを有する。第1導電性部材16の面と第2導電性部材15の面は平行で対向している。第1導電性部材16と第2導電性部材15が互いに独立に振動するように、第1導電性部材16と第2導電性部材15の間には、スペーサが部分的に設けられたり、外装カバー13より低弾性のスペーサが設けられたりする。【選択図】図1
