Accession Number:

AD0681254

Title:

DETERMINATION OF THE COEFFICIENT OF REFLECTION FOR MULTILAYERED SYSTEMS OF BIOLOGICAL TISSUES IN THE MICROWAVE RANGE,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1968-05-03

Pagination or Media Count:

15.0

Abstract:

The coincidence of the results of experimental measurements of the coefficient of reflection with calculated data showed the feasibility of the practical use of analytic and graphic-analytic methods of calculation. A graphic-analytic method is preferred because of its simplicity and visualizability. We can take 50 as the average value of the energy reflected from the body surface for frequencies that are applicable in medicine the microwave range of 460-2375 MHz. Depending upon the individual characteristics in skin and fat thicknesses, at 460 MHz this magnitude can vary within the limits of 35-63, and 2375 MHz, within the limits of 25-76. A quarter-wave matching layer for example, a 1 cm thick Mycalex plate significantly increases the percentage of energy absorbed by the body tissues during microwave therapy in the 12 cm range. Author

Subject Categories:

  • Radiobiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE