대한방사선기술학회지:방사선기술과학 (Journal of radiological science and technology)

  • 제46권3호
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  • Pages.187-195
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  • 2023
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  • 2288-3509(pISSN)
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  • 2384-1168(eISSN)
대한방사선과학회 (Korean Society of Radiological Science)
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실리콘 혼합 차폐체의 개발과 성능비교

Development and Performance Comparison of Silicon Mixed Shielding Material

  • 정회원 (백석문화대학교 방사선학과) ;
  • 민정환 (신구대학교 방사선학과)
  • Hoi-Woun Jeong (Department of Radiological Science, Baekseok culture University) ;
  • Jung-Whan Min (Department of Radiological Technology, Shingu University)
  • 투고 : 2023.05.12
  • 심사 : 2023.05.30
  • 발행 : 2023.06.30
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초록

A shield was made by mixing materials such as bismuth(Bi) and barium(Ba) with silicon to evaluate its shielding ability. Bismuth was made into a shield by mixing a bismuth oxide(Bi2O3) colloidal solution and a silicon base and applied to a fibrous fabric, and barium was made by mixing lead oxide(PbO) and barium sulfate(BaSO4) with a silicon curing agent and solidifying it to make a shield. The test was conducted according to the lead equivalent test method for X-ray protective products of the Korean Industrial Standard. The experiment was conducted by increasing the shielding body one by one from the test condition of 60 kVp, 200 mA, 0.1sec and 100 kVp, 200 mA, 0.1 sec. At 60 kVp, 2 lead oxide-barium sulfate shields, 2 bismuth oxide 1.5 mm shields, and 5 bismuth oxide 0.3 mm shields showed shielding ability equal to or higher than that of lead 0.5 mm. At 100 kVp, 2 lead oxide-barium sulfate shields and 2 bismuth oxide 1.5 mm shields showed shielding ability equal to or higher than that of lead 0.5 mm. It was confirmed that when using 2 pieces of lead oxide-barium sulfate and 1.5 mm of bismuth oxide, respectively, it has shielding ability equivalent to that of lead. Bismuth oxide and lead oxide-barium sulfate are lightweight and have excellent shielding ability, thus they have excellent properties to be used as an apron for radiation protection or other shielding materials.

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