F. G. Rutberg

Prolonged microbial resistance of water treated by a pulsed electrical discharge

The main characteristics of pulsed discharges in water are studied, such as the discharge current, voltage drop across the discharge gap, temperature of the discharge column, and plasma conductivity, as well as compression waves and ultraviolet radiation, which are induced by the discharge. The physicochemical properties of water treated by pulsed discharges are considered in the context of the effect produced on microorganisms. The mechanism underlying the prolonged microbial resistance of water—its capability of retaining a high activity against virtually all known pathogenic microorganisms and human-opportunistic fungi for many months after the discharge treatment—is explained.

Influence of the cathode and anode jets on the properties of a high-current electric arc

AbstractA study is made of the effects related to the formation of electrode jets in discharges in hydrogen and air at a current of 105–106 A, a current growth rate of 1010 A/s, an initial pressure of 0.1–4.0 MPa, and a discharge gap length of 5–40 mm. After secondary breakdown, jets are observed in a semitransparent discharge channel expanding with a velocity of (4–7)×102 m/s. The formation of shock waves in the interaction of the jets with the ambient gas and the opposite electrode is observed by the shadowgraphy method. Seventy microseconds after the beginning of the discharge, the pressure of the metal vapor plasma near the end of the tungsten cathode amounts to 177 MPa. The brightness temperature in this case is T=59×103 K, the average ion charge number is

Pulsed electric discharges in water as a source of magnetic nanoparticles for transportation of microorganisms

\overline m = 3.1

Analysis of Physicochemical Properties of Nanoparticles Obtained by Pulsed Electric Discharges in Water

, and the metal vapor density is n=5.3×1019 cm−3. After 90 µs, the average ion charge number and the metal vapor density near the anode end are

The efficiency of conversion of energy in an electric-discharge light-gas accelerator of bodies

\overline m = 2.6

Mixing gasdynamic laser with nonequilibrium arc excitation

and n=7.4×1019 cm−3, respectively. Based on the experimental data, possible reasons for the abnormally high values of the total voltage drop near the electrodes (up to ∼1 kV) are discussed.