Electromagnetic shielding that blocks radio frequency (RF) electromagnetic radiation is also known as RF shielding. The shielding can reduce the coupling of radio waves, electromagnetic fields, and electrostatic fields. A conductive enclosure used to block electrostatic fields is also known as a Faraday cage.
RF spectrum in the range of MRI Radio frequency (RF) shielding of an MR scanner is mandatory and serves two functions: to prevent extraneous electromagnetic radiation from contaminating/distorting the MR signal, and to prevent electromagnetic radiation generated by the MR scanner from causing interference in nearby medical devices.