DETERMINATION OF THE COEFFICIENT OF REFLECTION FOR MULTILAYERED SYSTEMS OF BIOLOGICAL TISSUES IN THE MICROWAVE RANGE,
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 03, 1968
- Accession Number
- AD0681254
Entities
People
- A. R. Livenson
Organizations
- National Air and Space Intelligence Center