Abstract
Results of property study of the developed high-acting scintillation spectrometer to be used in x-ray densitometer of radioactive solutions with 241 Am transmitting radiant are presented. Fast crystals YAlO 3 :Ce (AE25x0.4 and AE25x1.0 mm) are used as scintillators . S trong energy resolution dependence of the spectrometer with thin scintillators at crystal illumination (from 16.3 to 20.3 % for a g-line 59.5 keV) is revealed. The spectrometer input count-rate is over 5·10 5 1/s, and spectrum accumulation speed is not lower than 2·10 5 1/s. Due to the conversion gain program stabilization the relative shift and the peak broadening E γ = 59.5 keV do not exceed 0.25 % and 7.5 %, accordingly. Keywords: YAlO 3 :Ce, x-ray scintillation spectrometer, thin crystal, 241 Am, radioactive solutions, program stabilization, high count-rate, energy resolution. DOI: http://dx.doi.org/10.15826/analitika.2013.17.1.003 M . P . Belousov 1 , M . A . Gorbunov 2 , S . V . Dudin 1 , O . V . Ignatyev 1 , S . G . Morozov 2 , A . A . Pulin 2 1 Ural Federal University named after the first President of Russia B.N. Yeltsin , Ekaterinburg, Russian Federation 2 ATOM Electronics Ltd , Ekaterinburg, Russian Federation
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