| 摘要 |
The invention is directed to a coil arrangement for an NMR examination apparatus, comprising a solenoid type of coil assembly (1, 3) for producing a homogeneous basic magnetic field, fitted inside it, a high-frequency coil (5) for transmitting radio-frequency pulses and for receiving NMR-signals generated in a target to be examined, a magnetic field gradient coil assembly (9) comprising one or a plurality of coils. In order to eliminate the relative disturbance effect of coils and to optimize the size of an assembly, a former (2) of said coil arrangement for producing said basic magnetic field is made of a material at least substantially not conducting electricity, e.g. of fiberglass-reinforced epoxy, at least on those parts of the coil arrangement that are near the part to be examined of a target, and said high-frequency coil (5) is located immediately in the vicinity of said coil former (2).
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