Record Display for the EPA National Library Catalog

RECORD NUMBER: 4 OF 4

OLS Field Name OLS Field Data
Main Title Whole-Body Dosimetry of Microwave Radiation in Small Animals: The Effect of Body Mass and Exposure Geometry.
Author Kinn., James B. ;
CORP Author Health Effects Research Lab., Research Triangle Park, N.C. Experimental Biology Div.
Year Published 1977
Report Number EPA/600/J-77/103;
Stock Number PB-278 378
Additional Subjects Dosimetry ; Microwaves ; Body Weight ; Absorption(Biology) ; Whole body irradiation ; Measurement ; Radiation effects ; Rats ; Mice ; Laboratory animals ; Reprints
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-278 378 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 6p
Abstract
Whole-body absorption of 2450-MHz radiation was measured in rats that ranged from 6 to 440 grams and mice that ranged from 30 to 50 grams. Simultaneous exposure of groups of animals in varying numbers and various configurations were made under free-field conditions in an electrically anechoic chamber. Measurements of whole-body absorption were made with twin-well calorimeters. The results indicate that, for animals within a given narrow range of body mass, individual rates of absorption may, at the extreme, vary by a factor of seven. One implication of this variability is that studies of dose-response relations may be confounded unless power densities of incident radiation are sufficiently different to provide nonoverlapping dose rates. Comparisons of measured doses to predicted values as derived from a spherical shell model show considerable variations of observed from predicted values. Specific relationships of the specific absorption rates (SAR) to position and to the position and mass of the animals are presented.