In certain territories of the East Kazakhstan region (Ust-Kamenogorsk, Semipalatinsk, the Ulba object, Zaisan), a method for calculating the seismic potential (maximum possible earthquake magnitude) was tested using geomagnetic data: the values of the geomagnetic Z-component calculated in the geocentric solar-magnetospheric coordinate system (GSM). Estimates of seismic potential based on geomagnetic data were compared with data on the potential of seismogenic zones in the territory of the East Kazakhstan region, obtained from seismological, geological and geophysical data and the results of interpretation of satellite images. Satisfactory agreement was obtained between the estimates by two different methods, which confirms the possibility of using an alternative method for estimating the seismic potential in regions with a deficit of information about the seismic regime (possibly, being at present in the regime of temporary seismic calm).
The general methodological approach on using specialized remote sensing data of the Earth (ERS) on the territory of the Semipalatinsk Test Site area to identify active faults and seismogenic structures potentially dangerous with respect to the occurrence of earthquakes is presented. Specialized ERS data include data from aerogeophysical surveys, satellite multispectral, radar and gravimetric surveys. Examples of different ERS data application to identify active faults and areas with excess mass of the geological environment associated with the seismicity at the studied area are shown.
From the beginning of 2021 to the present, “Institute of Atomic Energy” branch of the RSE “National Nuclear Center of the Republic of Kazakhstan” has been working on modernization of the control and instrumentation subsystem of the information and control system of the EAGLE test bench. As part of this work, the purchased equipment was mounted, the primary adjustment of the modules and expansion baskets was made using the specialized Modbus Utility software included in the delivery set.
The paper describes the strong motions database that contains digital records and processing results of analogue and digital stations from the east Kazakhstan region. The database includes more than 150 records by digital data of the strong motion network, and by analogue stations at epicentral distance 7–4883 km. The peak acceleration for this period was recorded by Buran station for the aftershocks of Zaysan earthquake in 1990.
Experimental studying possibilities of the electron paramagnetic resonance (EPR) method application for the dose control using alanine deteectors in the process of technological irradiations with brake radiation at the accelerator ILU-10 INP RK has been carried out. The EPR signal stability and sensitivity of original alanine detectors have been studied, serviceability in standard modes was shown in the range of small doses of brake irradiation (0,005–1 kGy); for dose estimation the calibration on gamma-irrdiation was used. The obtained data confirmed the promise of alanine EPR dosimetry at the ILU-10 accelerator INP RK.
Ecological research findings on surface waters and bottom sediments in water bodies of the southwestern part of the Altai Territory are presented. Samples were collected and analyzed between 2020 and 2021. Activities of natural (40К, 226Ra, 232Th) and artificial (241Am, 239+240Pu, 137Cs and 90Sr) radionuclides were determined in bottom sediments, research into the content of heavy metals (copper, zinc, lead and cadmium) in surface waters and bottom sediments was undertaken. As a result, it was found that radiation parameters of bottom sediments in water bodies of the southwestern part of the Altai Territory did not exceed the regulatory level. No residual nuclear plumes at the Semipalatinsk Test Site are currently detected in water of water bodies of interest. The content of heavy metals in bottom sediments does not correspond to the regulatory level. Ground water contamination with heavy metals was not detected.
ISSN 1729-7885 (Online)