Frequency and Orientation Effects on Sites of Energy Deposition

  • Melvin R. Frei
Part of the NATO ASI Series book series (NSSA, volume 274)


The physiological and behavioral responses of animals exposed to radiofrequency radiation (RFR) are related to both the whole-body average specific absorption rate (SAR) and the distribution of absorbed energy within the irradiated subjects (the local SAR). Local and whole-body average energy absorption varies with a great number of factors—carrier frequency, power density, physical dimensions of the organism, and orientation of the subject with respect to the electric and magnetic fields. RFR exposure at different carrier frequencies results in different SARs in prolate spheroid models,1 and in different colonic heating rates in rats2 and rhesus monkeys,3 with higher SARs and faster heating occurring at or near the resonant frequency.


Energy Deposition Mean Arterial Blood Pressure Exposure Frequency Specific Absorption Rate Cardiorespiratory Response 
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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Melvin R. Frei
    • 1
  1. 1.Department of BiologyTrinity UniversitySan AntonioUSA

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