SCINTILLATION SPECTROMETER SBL-1 FOR THE X-RAY DENSITOMETER OF RADIOACTIVE TECHNOLOGICAL SOLUTIONS

Maxim Pavlovich Belousov, Maxim Aleksandrovich Gorbunov, Sergey Vladimirovich Dudin, Oleg Valentinovich Ignatyev, Sergey Gennadyevich Morozov, Alexey Aleksandrovich Pulin

Аннотация


Results of property study of the developed high-acting scintillation spectrometer to be used in x-ray densitometer of radioactive solutions with 241Am "transmitting" radiant are presented. Fast crystals YAlO3:Ce (Æ25x0.4 and Æ25x1.0 mm) are used as scintillators. Strong 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 5·105 1/s, and spectrum accumulation speed is not lower than 2·105 1/s. Due to the conversion gain program stabilization the relative shift and the peak broadening Eγ = 59.5 keV do not exceed 0.25 % and 7.5 %, accordingly.

Keywords: YAlO3:Ce, x-ray scintillation spectrometer, thin crystal, 241Am, radioactive solutions, program stabilization, high count-rate, energy resolution.

DOI: http://dx.doi.org/10.15826/analitika.2013.17.1.003


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Литература


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