Means for generating a strong magnetic field B 0 to be mainly (109) in the available internal space of a tunnel shape having a Z-axis (101), nuclear magnetic resonance machine of the present invention, and for high-frequency excitation includes an apparatus for processing a high frequency signal emitted in response to (150) body, a set of solenoidal gradient coils for superimposing an additional magnetic field component in the strong magnetic field B 0 and (110), the gradient coil ( 111-122), is integrated into a tube which is arranged parallel to the Z-axis (130) within said cylindrical annular space. Between the cylindrical annular space (102) external cryogenic enclosures (130), (310) is disposed a second set of solenoidal gradient coils built into the tube which is positioned parallel to the Z axis and a cylindrical annular space of the additional is the (330) direction of the pulse current in the coil has been reversed. [Selection Figure Figure 3本発明の核磁気共鳴機械は、Z軸を有するトンネル状の使用可能な内部空間(109)内で主となる強磁場B0を発生させるための手段(101)と、高周波励起のためのおよび人体(150)に応じて発せられた高周波信号を処理するための装置と、強磁場B0に付加磁場成分を重ね合わせるためのソレノイド型勾配コイルのセット(110)とを含み、当該勾配コイル(111~122)は、前記円筒型環状空間(130)内にZ軸に平行に配置された管内に組み込まれている。また、外部低温筐体(102)と前記円筒型環状空間(130)との間に、Z軸に平行に配置された管内に組み込まれたソレノイド型勾配コイルの第2のセット(310)が配置された追加の円筒型環状空間(330)を有し、当該コイル中のパルス電流の方向は逆となっている。【選択図】図3
