• Title/Summary/Keyword: 방사성 동위원소

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Safety Evaluation of a Radioisotope Transport Package (방사성 동위원소 운반용기의 안전성 평가)

  • Lee, J.C.;Ku, J.H.;Seo, K.S.;Min, D.K.
    • Journal of Radiation Protection and Research
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    • v.22 no.4
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    • pp.251-261
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    • 1997
  • A package to transport the high level radioactive materials is required to withstand the hypothetical accident conditions as well as normal transport conditions according to IAEA standards and domestic regulations. The regulations require that the package should maintain the shielding, thermal and structural integrities to release no radioactive material. In general, safety evaluation of packages is performed by experimental methods using scale model and/or analytical methods using computer codes. This paper presents the safety evaluation of package to transport the radioisotopes produced in the HANARO to the radioisotope production facility. Radiation shielding, thermal and structural analyses were peformed using the computer codes. It has been verified that the package is safe under hypothetical accident conditions as well as normal transport conditions.

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Tissue Distribution and Binding Proteins of Radionuclides in Bivalve, Gomphina melanaegis (민들조개(Gomphina melanaegis)에서 방사성 동위원소의 조직내 분포와 결합단백질에 관한 연구)

  • Yoo, Byung-Sun;Chung, Hai-Won;Lee, Jeong-Ho
    • Journal of Radiation Protection and Research
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    • v.10 no.2
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    • pp.109-112
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    • 1985
  • Radioisotope tracer experiments on the distribution and the binding of radionuclides to proteins in bivalve were carried out in order to gain further information on biochemical behavior of radionuclides in marine bivalve, Gomphina melanaegis. The radioactivities (cpm/g) of $^{65}Zn\;and\;^{54}Mn$ after 7 days exposure were highly concentrated in liver and kidney in comparison to soft parts. The gel filtration profile of $^{65}Zn$ in liver and kidney showed three elution peaks, while $^{54}Mn$ showed two peaks in liver and three peaks in kidney. On the gel filtration of $^{137}Cs$ in liver and kidney, most of $^{137}Cs$ were eluted on one peak. Thus, it was considered that each radionuclide was bound to different proteins in liver and kidney of bivalve.

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