Patent ID: 11860252
Assignee: SIEMENS HEALTHCARE LIMITED
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A magnetic resonance tomography unit comprising:
a field magnet;
a transmitter;
a transmitting antenna operable to excite nuclear spins;
a calibration antenna configured to receive a calibration signal; and
a transmission interference suppression facility comprising:
a transmission interference suppression controller;
a plurality of sensors; and
a transmission interference suppression antenna,

wherein the transmission interference suppression facility is configured to:
pick up, with the plurality of sensors, an excitation signal of the transmitter;
determine, with the transmission interference suppression controller, a transmission interference suppression signal as a function of the excitation signal of the transmitter; and
emit the transmission interference suppression signal via the transmission interference suppression antenna, so that at a predetermined location outside of the magnetic resonance tomography unit, an electromagnetic alternating field of an excitation signal emitted by the transmitter via the transmitting antenna is attenuated, and

wherein the plurality of sensors are arranged in a near field of the transmitting antenna, and the predetermined location of the attenuation is in a far field of the transmitting antenna, and
wherein the calibration antenna is arranged at a greater spacing from the transmitting antenna than the plurality of sensors.