Definitions for "Specific Absorption Rate"
SAR measures the amount of radio frequency emissions absorbed by human tissue when using your mobile phone. SAR data is used by clinical researchers studying the potential relationship between wireless phones and cancer. The SAR value of each mobile phone should be available from the manufacturer.
The rate at which energy is absorbed in body tissues, in watts per kilogram (W/kg). SAR is defined as the time derivation of the incremental energy absorbed by, or dissipated in, an incremental mass contained in a volume element of a given density. SAR is the dosimetric measure that has been widely adopted at frequencies above about 100 kHz.
an RF exposure concern that describes the potential for heating of the patient's tissue due to the application of the RF energy necessary to produce the NMR signal. The RF induced heat load can be directly related to the