Antenna unit for a pet - mr - device and a device consisting of the combination of a magnetic resonance tomograph and a positrons emission tomography apparatus

摘要

An antenna unit for a pet - mr - device has a support tube, in which at least one antenna for mr - signals is arranged, the support pipe at least one permeable portion and an impermeable section, of which the permeable portion for pet - quanta has a higher permeability than the impermeable section, further comprising a shield for high-frequency signals, which is arranged outside of the support pipe and the latter surrounds. Between the supporting tube and the shielding, an intermediate layer is arranged which, in the area of the permeable portion of the support pipe, at least partially, of a for pet - quanta section comparable to the transparent material that is transparent.