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As a result of the modernization of the DRG-05M dosimeter, a convenient device was obtained, which allows estimating the level of gamma- and X-ray radiation, beta-particles, and neutrons without changing the detector heads. Two devices were manufactured and a third one was prepared for metrological certification. [ABSTRACT FROM AUTHOR]

The sensitivity of neutrinoless double beta (02) decay experiments is mainly dependent on the internal background of a detector which, in its turn, is defined by the purity of material and possibility for selection of background events. The AMoRE (Advanced Mo based Rare process Experiment) collaboration plans to use 40Ca100MoO4 scintillation crystals as a detector for search of 02 decay of 100Mo isotope. A purpose of this pa-per is further investigation of internal background of 40Ca100MoO4 scintillation elements with a low background setup at YangYang underground laboratory. We present new approaches for selection of background events from analyzing data and the latest updated values of background index of 40Ca100MoO4 crystals as a result of the new technique application.

The optimal technological regime of formation ZnS1–xTex solid solution at spacing 0,0≤х≤0,1 has been determined, and has been shown that fritting in hydrogen atmosphere results in more rapid reaction in comparison to argon due to chemical-thermal etching the ZnO layer out. Further annealing in the inert Ar atmosphere leads to the increase of the light output, to the intensive emission band formation and causes afterglow level reduction and the crystalline lattice rearrangement.

Synthesis of derivatives of the poly(vinyl alcohol) containing rhodamine and pheniloxazole units in a side chain is described. It was carried out our research by methods of the absorptive and luminescent spectroscopy and it was shown, that for fluorescence and long-wavelength absorption of the obtained polymers are responsible corresponding chromophoric units in a side chain. It is executed quantum-chemical calculations of absorption spectrums of luminophor in solvents of various polarities. [ABSTRACT FROM AUTHOR]