| 摘要 |
An rf magnetic field pulse generator for generating a pulse train comprising a plurality of rf magnetic field pulses for use in an NMR investigation, the generator comprising (i) an amplifier (5) for generating an rf signal, the amplifier having an input for receiving a supply voltage; (ii) a transmitter coil (42) connected to an output of the amplifier, the transmitter coil being adapted to transmit the rf magnetic field pulses in response to the rf signal; (iii) a switched voltage regulator (4) for regulating the supply voltage by charging a local storage capacitor; and (iv) a controller (13) for causing the switched voltage regulator to charge the local storage capacitor only when a magnetic field pulse is not being transmitted.
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