Accession Number : AD0774823

Title :   Mortality in Rats Exposed to CW Microwave Radiation at 0.95, 2.45, 4.54, and 7.44 GHz.

Descriptive Note : Final rept. 1 Jul-31 Dec 73,


Personal Author(s) : Polson,P. ; Jones,D. C. L. ; Karp,A. ; Krebs,J. S.

Report Date : JAN 1974

Pagination or Media Count : 94

Abstract : Dose-response (lethality) data have been obtained for rats exposed frontally to CW microwave radiation in the frequency range 0.9 to 8 GHz. Approximately 1400 male rats of the Sprague-Dawley strain have been exposed groups to four separate frequencies: 0.95, 2.45, 4.54, and 7.44 GHz. Power density levels have ranged from approximately 0.2 W/sq cm to 12 W/sq cm, and lethal exposure durations from approximately 10 sec to 300 sec. Gross and histologic evaluation of selected tissues from some 20 animals has been obtained. The cause of death has been established as congestion, hemorrhage, and obstruction of nasal passages and/or congestion, hemorrhage, and often edema of the lungs. The lethality data have been subjected to a probit analysis, yielding LD50 curves for each of the four frequencies, and the LD50 values have been empirically fitted with a mathematical model. (Modified author abatract)

Descriptors :   *Microwaves, *Radiation effects, Pathology, Histology, Lethal dosage, Rats, Laboratory animals, Dose rate, Respiratory system, Radiobiology, Mathematical models, Radiation dosage, Lung, Experimental data

Subject Categories : Radiobiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE