RF Shielding
The MR instrument must be shielded against external interfering influences from the surrounding, to avoid image artifacts by interference with external RF signals. The shielding also protects external devices against the RF fields emitted by the MR instrument.
Depending on the magnet type and the site, the following RF shielding possibilities are available:
- ▪
- Installation in a RF shielded cabin, often called Faraday cage. The Faraday cage includes an appropriate filter plate for the external cable set as well as an appropriate filter plate for animal supervision.
- ▪
- Installation with RF screened CCM and AUTOPAC (MANPAC). The CCM is equipped with an appropriate filter plate for the external cable set. The AUTOPAC (MANPAC) provides appropriate filter plates for animal supervision.
While scanning, all doors of the CCM respectively the Faraday cage need to be closed. Scanning with open doors can cause image artifacts, and can negative affect EMC operating conditions in the environment possibly.