TY - JOUR TI - Portable scintillation gamma-spectrometer for field measurement of radioactivity in extensive objects; Portativnyj stsintillyatsionnyj gamma-spektrometr dlya izmereniya radioaktivnosti ob''emnykh sred v polevykh usloviyakh AB - The portable scintillated gamma-spectrometer for field measurement of radioactivity in the volume objects was designed. The crystal CdWO{sub 4} that has weak dependence of light yield from temperature in combination with PMT was applied as the gamma-rays detector. The design of the device provides the possibility for measuring radioactivity of the extensive objects in 4{pi}-geometry without background measurements. In this case the value of the efficiency needed for specific activity calculation in close approximation depends only from crystal geometry and density of measuring object and may be set as the device parameter without efficiency calibration procedure during the operation. The spectrometer does not have an auxiliary radio-active source and connecting cables in the composition. The smartphone operated under Windows Mobile is used as the control module. Bluetooth connection provides data exchange between smartphone and measurement head. AU - "Besshejko, O. A. [Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)]" AU - "Vishnevskij, I. N." AU - "Denisenko, R. V." AU - "Malyuk, I. A." AU - "Petrosyan, Eh. E. [Institute for Nuclear Research, Kyiv (Ukraine)]" AU - "Karpenko, S. A." AU - "Prijmak, V. N. [Ukrainian Association for Valves Industry, Dnepropetrovsk (Ukraine)]" KW - "46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY" KW - "CADMIUM TUNGSTATES" KW - "CRYSTALS" KW - "GAMMA DETECTION" KW - "GAMMA RADIATION" KW - "GAMMA SPECTROMETERS" KW - "NATURAL RADIOACTIVITY" KW - "SPECIFICATIONS" DO - https://doi.org/ UR - PB - CY - Ukraine PY - 2011 DA - 2011-07-01 LA - Russian J2 - [] VL - C1 - C2 - C3 - C4 - C5 - L3 - Journal Name: Yaderna Fyizika ta Energetika; Journal Issue: 12/4 ER -