구형 BGO 섬광 검출기에 대한 감마선 에너지 스텍트럼 계산 = Calculation of Gamma - ray Energy Spectrum for Spherical BGO Scintillation Detector

다국어 초록 (Multilingual Abstract)

The γ-ray deposition spectra were calculated by Monte Calro method to obtain the scintillation characteristics of the γ-ray for BGO scintillation detector with the spherical shape of 1.25 cm radius. The code used in calculating the γ-ray deposition spectra was made for personal computer with qbasic language. Also the γ-ray energy spectra of ^(22)Na, ^(137)Cs and ^(207)Bi were measured with the detector. The energy dependent resolution below 2000 keV for the detector was determined by estimating the standard deviation of the photopeak fitted with gaussian function, and x² fitting using Nardi`s empirical formula. The measured spectra of ^(22)Na and ^(137)Cs were compared with the broadened spectra which were obtained by broadening the calculated γ-ray deposition spectra with the energy dependent resolution. The absolute efficiency and the intrinsic peak efficiency of the detector were obtained by calculating the γ-ray deposition spectrum with the code.