Thermoelastic excitation of acoustic waves in biological models exposed to high-peak-power pulsed electromagnetic radiation of extremely high frequency |
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Authors: | A B Gapeev A V Rubanik T N Pashovkin N K Cheremis |
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Institution: | (1) Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia;(2) Belarusian State University of Informatics and Radioelectronics, Minsk, 220027, Belarus |
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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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Keywords: | high-peak-power pulsed microwaves thermoelastic excitation of acoustic waves |
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