"Radiofrequency or RF shielding is a technique for creating electromagnetic (EM) isolation, which is critical during the acquisition of MR images. RF shielding serves to both prevent external EM interference from contaminating the target tissue signal, and to ensure that signals generated by MR imaging do not escape the room."
"Radiofrequency or RF shielding is a technique for creating electromagnetic (EM) isolation, which is critical during the acquisition of MR images. RF shielding serves to both prevent external EM interference from contaminating the target tissue signal, and to ensure that signals generated by MR imaging do not escape the room."
"In actual implementation, RF shields are based on the principle of the Faraday cage, which is typically incorporated in the construction of the scanning room. While any electrically-conducting material can be used as shielding, galvanised steel and copper have been shown to be effective at a reasonable cost 2."