Abstract
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.
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Original Russian Text © A.B. Gapeev, A.V. Rubanik, T.N. Pashovkin, N.K. Cheremis, 2007, published in Biofizika, 2007, Vol. 52, No. 6, pp. 1087–1092.
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Gapeev, A.B., Rubanik, A.V., Pashovkin, T.N. et al. Thermoelastic excitation of acoustic waves in biological models exposed to high-peak-power pulsed electromagnetic radiation of extremely high frequency. BIOPHYSICS 52, 611–615 (2007). https://doi.org/10.1134/S0006350907060139
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DOI: https://doi.org/10.1134/S0006350907060139