| 摘要 |
A magnet configuration comprising a superconducting magnet coil system (M) which has a working volume and an ohmic resistance (R) of zero or more, and a current path (P) which comprises parts of the magnet coil system (M), with connecting points (AP 1 , AP 2 ), a power supply (PS, PS'), and an electric network (D 1 , D 1 ', D 2 ), wherein the connecting points (AP 1 , AP 2 ) of the current path (P) are electrically connected to connections (AD 1 , AD 2 , AD 1 ', AD 2 ') of an electric network (D 1 , D 1 ', D 2 ) facing away from the power supply, and the power supply (PS, PS') is electrically connected to connections (AD 3 , AD 4 ) on the power supply side of the electric network (D 1 ), and wherein the network (D 1 , D 1 ') comprises a resistance (R 1 ), is characterized in that the network (D 1 , D 1 ') comprises an inductance (L 1 ), wherein the connections (AD 1 , AD 2 ) are connected to each other via the resistance (R 1 ), and the connections (AD 3 , AD 4 ) are connected to each other via the resistance (R 1 ) and the inductance (L 1 ). This improves attenuation of the field fluctuations such that the voltage that is effectively applied across the magnet is sufficiently constant to prevent disturbance of high-resolution NMR and MRI methods.
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