Accession Number:

ADA155718

Title:

Microwave Radiation and Thermoregulation.

Descriptive Note:

Final rept. 1 Oct 82-30 Sep 84,

Corporate Author:

MAINZ UNIV (GERMANY F R)

Personal Author(s):

Report Date:

1985-05-01

Pagination or Media Count:

57.0

Abstract:

Adult male squirrel monkeys were equilibrated to one of three ambient temperatures Ta-20, 26 and 32 C and then re-equilibrated for a 90-min period in the presence of a 2450-MHz CW microwave field. Power densities of 10, 15, 20, and 25 mWsq cm were explored SAR1.5, 2.25, 3.0, and 3.75 Wkg, respectively at each T sub a32 C. In accordance with the method of partitional calorimetry, the following autonomic responses of heat production and heat loss were measured during the experiments metabolic heat production, respiratory evaporative heat loss, total evaporative heat loss, skin and deep body temperatures that allowed determination of heat flows within the body, and from the body to the environment. The monkeys achieved thermal balance by the mobilization of appropriate thermoregulatory responses. These included a reduction of metabolic heat production when cool vasodilation of tail and foot when thermoneutral T sub a, and initiation of thermoregulatory sweating when warm. The coefficient of heat transfer to the environment, derived from these measures, was the same as that determined directly in the test environment.

Subject Categories:

  • Anatomy and Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE