Information on the ozone concentration in the surface air and troposphere in the first half of 2020 is presented. The data were acquired at 13 stations in different Russian regions; vertical distributions were obtained with the use of an aircraft laboratory. The excess over the Russian Federation hygienic standards is assessed; the daily average ozone concentration is found to be regularly higher the maximum permissible concentrations at most stations. At some stations, there are features the seasonal variations in the ozone concentration in the period under study different from previous years.
Experimental results concerning synchrotron radiation, particle losses and effects of initial plasma temperature on the relativistic plasma formation are given. The life time of a relativistic plasma in a simple mirror device coincides with the time of turbulent diffusion.
A review of experimental research performed on installations of GYRAC-type based on the synchrotron gyromagnetic autoresonance (SGA) phenomenon is presented. It is shown that the SGA-regime can be used to obtain relativistic plasma as well as a controlled bunch of relativistic electrons. GYRAC-produced plasma is of interest for applied plasma physics as a source of particles and different kinds of radiation (synchrotron radiation and bremsstrahlung).
We present information on ozone concentration in the surface air layer in the second half of 2020. Data were obtained at 13 stations located in different regions of Russia. We estimated the excess over hygienic standards of the Russian Federation, both in the second half of the year and throughout 2020. It is shown that the daily average maximum permissible concentration of ozone is regularly exceeded at all stations. There are cases of exceeding the one-time maximum permissible concentration.
Results of an experimental study of a relativistic plasma generated by means of the gyromagnetic autoresonance in the plasma synchrotron accumulator called GYRAC-D are presented. The use of a new heating scheme in the regime of a train of pulses with the further accumulation of the generated plasma in a mirror magnetic configuration and improvement of vacuum conditions owing to a system of external injection make it possible to obtain a plasma with the following parameters: Te≊200 keV, ne≊1×109 cm−3, and lifetime approximately 1 s. No major obstacles to further increase the density are observed.
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