Accession Number : ADA182397

Title :   Frequency-Dependent Energy Absorption in the Body and Tail of the Rodent Carcass Exposed to Radiofrequency Radiation.

Descriptive Note : Final rept. 31 Jun-31 Dec 85,

Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TX

Personal Author(s) : Bixby,R R ; Padilla,Jimmy M

PDF Url : ADA182397

Report Date : Apr 1987

Pagination or Media Count : 15

Abstract : The proportion of energy absorbed by the tail of a rat carcass was determined. Male (288 g - 457 g) and female (195 g - 249 g) Sprague-Dawley rat carcasses were exposed to far-field, continuous-wave radiofrequency radiation (RFR). The carcasses were split into two mixed groups: one group was exposed to 700-MHz RFR; and the other, to 350-MHz RFR. Immediately after each exposure, the tail was severed, and the specific absorption rates (SAR) of the tail and body were determined by Dewar flask calorimetry. For example, a 195 g female exposed to 700 MHz yielded SARs of 1.26 and 3.64 mW/g (normalized to 1 nW/cm2 incident power density) for its body and tail, respectively; the tail contributed 6.7% to the total energy absorption. For a 205 g female exposed to 350 MHz, however, the tail contributed 19.0% to the whole-body absorption. Normalized SARs of 0.40 and 4.03 nW/g per mW/cm2 were obtained for the body and tail, respectively. Keywords: Whole-Body irradiation; Radiation absorption.

Descriptors :   *RADIOFREQUENCY, *RATS, *RADIATION ABSORPTION, *WHOLE BODY IRRADIATION, CONTINUOUS WAVES, RADIATION, FAR FIELD, DENSITY, POWER, ABSORPTION, ENERGY ABSORBERS, MIXING, EXPOSURE(PHYSIOLOGY), MICROWAVES

Subject Categories : Radiobiology
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE