specific absorption rate


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Related to specific absorption rate: Maximum Permissible Exposure

specific absorption rate (SAR)

[spisif′ik]
Etymology: L, species, form
(in hyperthermia treatment) the rate of absorption of heat energy (W) per unit mass of tissue in units of watts per kilogram (W/kg).

specific absorption rate

An MRI term for the radio frequency (RF) energy absorbed per unit of mass of an object, measured in watts per kilogram (W/kg). The greatest concern with RF exposure is the potential for heating patients’ tissues, which is directly related to the specific absorption rate.

specific absorption rate

The rate at which electromagnetic energy is absorbed by a kilogram of tissue, usually expressed as the heat absorbed by the tissue, or as the power absorbed per unit of mass.
See also: rate
References in periodicals archive ?
Edwards, "A study of changes to specific absorption rates in the human eye close to perfectly conducting spectacles within the radio frequency range 1.
Villar, "Comparison of FDTD-calculated specific absorption rate in adults and children when using a mobile phone at 900 and 1800MHz," Phys.
Szendro, "Metal-framed spectacles and implants and specific absorption rate among adults and children using mobile phone at 900/1800/2100 MHz," Electromagnetic,
An Australian study which ranked the phones by the so-called Specific Absorption Rate (SAR) value found that people using the Ericsson T28 absorbed six times more radiation than those using the Nokia 8850, which emits the lowest amount of radiation.
But it has done nothing to reduce the levels of radiation that enters the tissue known as Specific Absorption Rate or SAR.
Pong's BlackBerry Curve case is tested by Cetecom labs to reduce Specific Absorption Rate (SAR, a mobile industry standard of measurement) by 60% and intense 'hotspot' cell phone radiation (Electric Field Intensity) by 85%.
SAR - Specific Absorption Rate - is the standard industry measurement for the amount of RF energy the body absorbs.
The amount of energy entering tissue is known scientifically as the Specific Absorption Rate or SAR.
The SAR Shield then deflects the waves away from the user's ear and skull, reducing the specific absorption rate (SAR) upwards of 89%.
iMAT has multiple benefits: it can consolidate the number of antennas required in a device, reduce the specific absorption rate (SAR), eliminate RF components, and more.
The case reduces the specific absorption rate (SAR, a mobile industry standard of measurement) by 60% and reduces intense 'hotspot' cell phone radiation (Electric Field Intensity) by 85%.
SkyCross, a global antenna solutions company, has developed a way to reduce Specific Absorption Rate (SAR) levels in small wireless devices without sacrificing signal strength.