No abstract available

[en] Experimental data on the number of neutrons born in the heavy water targets of the large neutrino detectors are used to set the limit on the proton life-time independently on decay mode through the reaction d → n + ?. The best up-to-date limit τ_p > 4x10²³ yr with 95% C.L. is derived from the measurements with D₂O target (mass 267 kg) installed near the Bugey reactor. This value can be improved by six orders of magnitude with future data accumulated with the SNO detector containing 1000 t of D₂O

[en] These tables contain the most stringent known experimental limits on the probabilities of 2β-processes for 69 nuclides, transitions to ground and excited states of daughter nuclei, different channels (2β^-,2β⁺,eβ⁺,2e) and modes (0ν,2ν,0νM) of decay. Corresponding theoretical estimations of half lives, abundances of parent nuclides and atomic mass differences of parent and daughter isotopes also are given. 68 refs.; 1 table. (author)

No abstract available

[en] Experimental data accumulated by the SNO detector (containing 1000 t of D₂O) on neutral-current solar neutrinos interactions [Phys. Rev. Lett. 89 (2002) 011301] have been used to set the best up-to-date life-time limit on the proton disappearance (or decay to the weakly interacting particles like neutrinos, majorons, etc.): limτ(p→?)>5.7(3.5)x10²⁸ yr at 68% (90%) C.L

[en] A programme is worked out allowing to model the processes of electron interaction with matter and may be used at planning and making investigations of double-beta decay of atomic nuclei to optimize the experimental techniques and to analyse the measurement results. In calculation the energy losses of electrons inelastic collisions are taken into consideration with atomic electrons of medium causing the excitation and atom ionization (ionization losses) and also the bremsstrahlung appearing at electron acceleration in electric fields of atomic nuclei and shells (radiation losses)

[en] The stable amplitude impulse generator is worked out consisting of a constant voltage source, a storage element and a key based on mercury relay. The thermostating source provides the voltage unstability to 12x10^-6/ degrees and less than ±5x10^-6 during 80 hours. The mercury relay is placed in a separate thermostat. The unstability of generator output pulses is equal to 1x10^-5/ degrees and less than ±1,5x10^-5 during 24 hours

[en] It is established that by liquid nitrogen cooling the zinc molybdate monocrystals may be applied as scintillators. Measurement of the crystals background revealed the presence of ²¹⁰Rb radioactive additions with specific activity of 0.07 - 0.19 Bq/g in various samples

[en] Based on computer and CAMAC equipment a system of spectrometric data accumulation and processing is created from low background installations. The dialoque procedure, a great choise of procedures and result representation in colour TV display allow to make spectrum processing with a small number of counts in a canal. The software includes the widely used of γ-spectra processing programmes KATOK and ETAP

No abstract available