LOTUS reactor - a compact lead-cooled fast is currently being studied to generate 200 MWth of capacity and operate for 20 years without refueling the floating nuclear power plant (FNPP) application. Therefore, it would be big advantage achieve long operation refueling. However, small usually has higher neutron leakage, good reflector essential maintain economy. The main objective selecting pote...

The work is devoted to the problem of identifying an unknown source g-radiation as a task emergency dosimetry in case use for terrorist purposes radiation-dispersive devices, known also dirty bomb. possibility g-source considered based on energy dependence absorption ionizing photon radiation, which passive manifests itself dosimetric sensitivity. Radioisotope recognition analyzed by ratio sens...

Purpose. Coal mining activities by underground method will disrupt the equilibrium of surrounding rock mass. In mining, determining influence zone exploiting longwall on topographic surface is extremely important.Through analyzing displacement and deformation mass when 21103 in Seam 11 at Nui Beo Mine, to be determined this order forecast boundary that may affect works, ensuring safety such wor...

The paper presents data on changes in strength properties, including microhardness, crack resistance, bending and wear of BeO ceramics as a result irradiation with heavy accelerated ions. following types ions were selected ions: O2+ (28 MeV), Ar8+ (70 Kr15+ (147 Xe22+ (230 MeV). Radiation doses 1013 -1015 ion/cm2 , which make it possible to assess the effect both single defects arising from rad...

The influence of separately added 0.3 wt%, CdO, Bi2O3, BeO and SiO2 on the phase formation, microstructure, magnetic transport properties Y1Ba2Cu3O(7-$\delta$) (Y-123 or YBCO) fabricated by conventional solid state reaction method has been analyzed. results reveal a very low solubility limit for bismuth silicon in Y-123 phase, leading to precipitation phases located within intergranular regions...