[en] Review on monograph of Vasilenko, I.Ya. Toxicology of nuclear fission (Moscow, Medicine, 1999) is presented. Data of longevity full-scale investigations during nuclear explosions on the Semipalatinsk test site are given. Classified, complex investigations into the effect of nuclear fission products mixtures on different kinds of laboratory animals are described, transfer of radiobiological researches to organism of man is scientific valid. The most complicate radiobiological problem of low dose is analyzed. The being investigated monograph contains unique scientific information and makes a heavy contribution in radiobiology

[en] The numerical analysis of temperature field in accordance to thermal conductivity equation in wide interval of its parameter was carried out. Satisfactory accord between the theory and experiment was achieved only after the incorporation of convective member in the equation at the rate of convection ν = 1.511 x 10^-4 m/c and nominal value of the rest parameters. The described problem was attacked by solving a method of putting in the system of ordinary differential equations and its integration by Runge-Kutta-Merson method of fourth-fifth orders

[en] The system of continuous radiation monitoring of the territory of the Russian National Center 'Kurchav Institute' is briefly described. The system is capable to aquire and store the information transmitted from detectors fixed in different points without operator participation during 24 hours. The interval between measurements amounts to 90 s

[en] The information about the Russian Federation law dealing with population radiation safety signed by the President in January 1996 is given. The law is based on a new strategy of radiation protection including the mean efficient dose from all ionizing radiation sources as the main factor for evaluation of the safe level for the population. The norms stated in the law will become valid from January 1, 2000

[en] IAEA publications devoted to the current state of the world nuclear-power engineering and prediction of its development up to 2020 are discussed. Information about the number of operating power blocks of NPP, their power, quote of produced electric power is incorporated in the issues. Predicted loss of nuclear-power engineering contribution by 2020 has engaged our attention. Data on kinds of fuel are assembled in tables and diagrams, tendencies of population growth, power- and electric consumption in 1991 - 1999 are compared with predicted to 2020. Second issue of the IAEA series is devoted to nuclear power reactors. Information about operating nuclear power blocks of the world, data on their producers, insights into all stopped reactors take the basic place

[en] Detectors with NaI(Tl) crystal are widely used for radiation monitoring at NPP to reveal short-term and insufficient excess of photon flux over the background. Curve characterizing the dependence of optimal thickness of NaI(Tl) crystal 80 mm in-diameter on detected photon energy is presented. The correct choice of crystal thickness provides for the minimal measurement time and the minimal relative error

[en] Short communication

[en] Handbook of the IAEA (Safety Report Series, N 14). Vena: INIS, 1999, is reviewed. The issue involves relations and numerical coefficients for quantitative estimation of internal irradiation at the sacrifice of radioisotope intake in organism of man with food and water. Distinction of the new manual consists in transition from concept of standard man used by the International Committee on Radiation Protection to models taking into account age-dependent changes and living conditions in basic regions

[en] The thermoelectric method for the determination of the zirconium hydrides concentration in zirconium and zirconium based alloys is offered. The zirconium thermocouple, one part of which is differ from another by available of zirconium hydrides only, is considered. The equation for determination of the content of ZrH_1.5 hydride molecules in connection with the number of zirconium atoms at the same volume is given. The e.m.f. graphic dependence of the thermocouple from the concentration of zirconium hydride during cooling of the thermocouple by liquid nitrogen (ΔT = 216 K) is demonstrated. Thermoelectric determination of the zirconium hydride concentration is a good reproduced express method

[en] Brief information on the radiation accident connected with spontaneous chain reaction begin in one of shops at the Joint-stock company Novosibirskij Zavod Khimkonthentratov where nuclear fuel with high ²³⁵ U enrichment is manufactured is given. The accident took place on May, 15, 1997. The calculational estimation shown that the spontaneous chain reaction began as a result of accumulation of uranium-containing deposit with uranium concentration of 70-100 g/l in the tank of leaching solutions. According to alarm signals the personnel on duty was evacuated out of the shop manufacturing compartments following the accident elimination plan. Medical and dosimetric personnel surveys did not reveal any victims. Radioactivity escape into industrial areas and environment did not take place