Method and apparatus for continuously, directly monitoring the RF-tightness of a shielded cubicle of an MR system

摘要

In a method and apparatus for continuously, directly monitoring the RF-tightness of a shielded cubicle of an MR system, a radio-frequency signal is transmitted to the cubicle from the outside via an antenna and the signal part that passes to the interior is identified with a receiver in the inside of the cubicle. An RF transmission antenna arranged at the outside in the door region of the shielded cubicle is connected to an RF output of the MR system, and a body coil of the MR system is employed as a reception antenna for determining the RF tightness of the shielded cubicle of the MR system, and is connected to a monitoring receiver.