Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
권호 표지
DOI QR코드

DOI QR Code

Development and Performance Comparison of Silicon Mixed Shielding Material

실리콘 혼합 차폐체의 개발과 성능비교

  • Hoi-Woun Jeong (Department of Radiological Science, Baekseok culture University) ;
  • Jung-Whan Min (Department of Radiological Technology, Shingu University)
  • 정회원 (백석문화대학교 방사선학과) ;
  • 민정환 (신구대학교 방사선학과)
  • Received : 2023.05.12
  • Accepted : 2023.05.30
  • Published : 2023.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

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.

Keywords

References

  1. Song SK, Gil JW, Lee BY. Status of diagnostic X-ray equipment in the Republic of Korea, 2021. Public Health Weekly Report. 2022;15(51):3021-32. https://doi.org/10.56786/PHWR.2022.15.51.3021
  2. Jang DG, Lee SH, Choi HS, Son JC, Toon CY, Ji YS, et al. A study on the apron shielding ratio according to electromagnetic radiation energy. Journal of Radiological Science and Technology. 2014;37(4):247-52.
  3. Kwon YH. A study of MSDs and their policy reform for workers in healthcare and medical fields [master's thesis]. Seoul: Seoul Tech; 2009.
  4. Matsuda M, Suzuki T. Evaluation of lead aprons and their maintenance and management at our hospital. J Anesth. 2016;30(3):518-21. https://doi.org/10.1007/s00540-016-2140-2
  5. Park KY. Modification of lipoproteins by blood lead (Pb) to result skin toxicity and pro-atherogenic effect [master's thesis]. Gyeongbuk: Young-Nam Univ; 2014.
  6. Korea Industry Society Association. Safety policy against lead poisoning. KISA, 05; 1995.
  7. Kim SC, Kim KT, Park JK. Barium compounds through monte carlo simulations compare the performance of medical radiation shielding analysis. Journal of the Korean Society of Radiology. 2013;7(6):403-8. https://doi.org/10.7742/JKSR.2013.7.6.403
  8. Kim SC, Park MH. Development of radiation shield with environmentally-friendly materials; I: Comparison and evaluation of fiber, rubber, silicon in the radiation shielding sheet. Journal of Radiological Science and Technology. 2010;33(2):121-6.
  9. Park HH, Lee JY, Kim JH. The usability evaluation according to the application of bismuth shields in PET/CT examination. Journal of Radiological Science and Technology. 2014;37(1):49-56.
  10. Jang SG, Han SC, Kang SJ, Lee SS. Preliminary study for development of low dose radiation shielding material using liquid silicon and metalic compound. Journal of Radiological Science and Technology. 2017;40(3):461-8. https://doi.org/10.17946/JRST.2017.40.3.14
  11. Korea Standard. Testing method of lead equivalent for x-ray protective devices, No. 2015-0654. KSA 4025; 2017.
  12. Ngaile JE, Uiso CBS, Msaki P, Kamena R. Use of lead shields for radiation protection of superficial organs in patients undergoing head CT examinations. Radiation Protection Dosemetry. 2008;130(4):490-8. https://doi.org/10.1093/rpd/ncn095
  13. Korean intellectual property office patent gazette(A), Radiation shielding fabric. Number 10-08600332; 2008.
  14. Korean intellectual property office patent gazette(A), Radiation shielding fabric. Number 10-2009-0011082; 2009.
  15. Choi TJ, Oh YK, Kim JH, Kim OB. Development of lead free shielding material for diagnostic radiation beams. Medical Physics. 2010;21(2):232-7.
  16. Park YS, Lee JS, Dong KR. Compare shielding performance evaluation of lead alternatives. Advanced Engineering and Technology. 2015;8(1):79-85.
  17. L HR. Preparation and characterization of X-ray shielding materials by tungsten-silicon composites [master's thesis]. Daegu: University of Keimyung; 2014.
  18. Trapp JV, Kron T, Webster JG, Tabakov S, Ritenour ER, Ng KH, et al. An introduction to radiation protection in medicine. Adelaide: Australasian Physical & Engineering Sciences in Medicine; 2008.
  19. Jeong HW, Kim JM, Lin SS. Broad beam transmission properties of some shielding materials for use in diagnostic radiology. Journal of Radiological Science and Technology. 2004;27(4):23-9.
  20. National Council on Radiation Protection and Measurements(NCRP). Structural shielding design and evaluation for medical use of X rays and gamma rays of energies up to 10 MeV. Bethesda: NCRP; 1976.