Journal of Radiation Protection and Research

The Korean Association for Radiation Protection (대한방사선방어학회)
권호 표지

CHARACTERISTICS EVALUATION AND GROWTH OF $BI_4GE_3O_{12}$ SINGLE CRYSTAL BY CZOCHRALSKI METHOD

  • Cho, Yun-Ho (Department of Nuclear Engineering, Hanyang University) ;
  • Kim, Yong-Kyun (Department of Nuclear Engineering, Hanyang University) ;
  • Lee, Woo-Gyo (Department of Nuclear Engineering, Hanyang University) ;
  • Kang, Byoung-Hwi (Department of Nuclear Engineering, Hanyang University) ;
  • Kim, Jong-Kyung (Department of Nuclear Engineering, Hanyang University) ;
  • Lee, Dong-Hoon (Department of Nuclear Engineering, Hanyang University) ;
  • Park, Jae-Woo (Department of Nuclear and Energy Engineering, Cheju University)
  • Published : 2009.06.30

Abstract

The single crystal scintillator of bismuth germinate ($Bi_4Ge_3O_{12}$:BGO) was successfully grown by the conventional Czochraski technique. The characteristics of the grown BGO were evaluated and presented on the excitation, emission responses and energy spectra of the $\gamma$-rays from $^{241}Am$, $^{133}Ba$, $^{57}Co$, $^{22}Na$, $^{137}Cs$ and $^{54}Mn$ radio-isotopes. The energy resolution of grown BGO, $\Delta$E/E, was estimated to be 12.1% at 662 keV of $\gamma$-ray for $^{137}Cs$ nuclide. Compared to the commercial BGO crystal, we confirmed that the grown BGO has a good performance and is comparable to reference one.

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