Thermoelastic excitation of acoustic waves in biological models exposed to high-peak-power pulsed electromagnetic radiation of extremely high frequency

We experimentally demonstrated for the first time that high-peak-power pulsed electromagnetic radiation of extremely high frequency (35.27 GHz; pulse widths, 100 and 600 ns; peak power, 20 kW) is capable of thermoelastic excitation of acoustic waves in model water-containing objects and muscle tissu...

Full description

Saved in:
Bibliographic Details
Published in:Biophysics (Oxford) 2007-12, Vol.52 (6), p.611-615
Main Authors: Gapeev, A. B., Rubanik, A. V., Pashovkin, T. N., Cheremis, N. K.
Format: Article
Language:English
Subjects:
Acoustics
Electromagnetism
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We experimentally demonstrated for the first time that high-peak-power pulsed electromagnetic radiation of extremely high frequency (35.27 GHz; pulse widths, 100 and 600 ns; peak power, 20 kW) is capable of thermoelastic excitation of acoustic waves in model water-containing objects and muscle tissue of animals. The amplitude and duration of excited acoustic pulses are within the limits of accuracy of theoretical estimates and are a complex nonlinear function of electromagnetic energy input. The propagation velocities of acoustic pulses in water-gelatin models and isolated muscle tissue of animals are close to reference data. The excitation of acoustic waves in biological systems exposed to high-peak-power pulsed microwaves is an important phenomenon that makes an essential contribution to understanding the mechanisms of biological effects in these electromagnetic fields.[PUBLICATION ABSTRACT]
ISSN:0006-3509
1555-6654
DOI:10.1134/S0006350907060139