[en] Impurity diffusion of zirconium 95 in monocrystalline molybdenum in the temperature range of 1700 to 2030 deg C is investigated and the equation of temperature dependence of diffusion coefficients id obtained. It is shown that parameters of the temperature dependence correlate well with concepts of a vacancy diffusion mechanism. Peculiarities of diffusion investigation technique with the use of radioactive isotopes are discussed when a diffusant contains impurities of a ß-radioactive element

[en] Tungsten diffusion in monocrystalline molybdenum during annealing in vacuum of 1x10^-₆ mm Hg at temperatures 1660-2230 deg C is studied using radioisotope method. Comparison of parameters of self-diffusion and impurity diffusion of tungsten is carried out. According to the data of investigations conducted the equation, describing diffusion process, is composed

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[en] New data on isotopism of carbon and strontium in calcites and apatites of the Ust'-Chul'man knot and Pb-Pb-dating of apatites in the knot manifestation are given. For the first time among Seligdar-type deposits an object is detected, where calcites and apatites of carbonatites as regards strontium isotopism are similar to the same parameter of the Arbarastakh massive, which is genotypical of the Aldan shield. The conclusion is made on the formation of ore carbonates from the substance of deep-seated sources. The fact of the delay in time of meneralization of the late stage in the ore knots of the Nimnyrsk structural-metallogenic zone in the direction from south to north is ascertaine

[en] Facility to conduct investigations into dense gas beam plasma is described. Facility comprises: electron accelerator (200-300 keV, 5kA, 20ns), OGM-40 ignition ruby laser LZhI-501 diagnostic laser (with 0.55-0.66 μm tunable wave length), Michelson interferometer and diagnostic equipment for optical measurements. Laser ignition of spark gap is introduced to strong synchronization (±10ns) of radiation pulse of diagnostic laser with beam current pulse

[en] New fish product with addition of food calcium had radioprotective properties, resulted in decreased cesium-137 content in organs and tissues of animals by 40-60% and lesser changes in differential blood count and biochemical indexes of blood serum

[en] Results of the experimental investigations of the interaction of a quasi-stationary relativistic electron beam (300 keV, 20 A, 500 μs, 0,3 cv) with a dense gas are given. The obtained results are compared with the previously discussed theoretical model of interaction of the relativistic electron beam with a medium

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