Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

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

DOI QR Code

Evaluation of the Shield Performance of Lead and Tungsten Based Radiation Shields

납과 텅스텐 기반 차폐체의 성능 비교 평가

  • Jeong-Hwan Park (Department of Radiologic Science, Ansan University) ;
  • Hyeon-Seong Lee (Department of Radiology, Catholic Kwandong University International St. Mary's Hospital) ;
  • Eun-Seo Lee (Department of Radiologic Science, Ansan University) ;
  • Hyo-Jeong Han (Department of Radiologic Science, Ansan University) ;
  • Yun-Hee Heo (Department of Radiology, Gumdan Top General Hospital) ;
  • Jae-Ho Choi (Department of Radiologic Science, Ansan University)
  • 박정환 (안산대학교 방사선학과) ;
  • 이현성 (가톨릭관동대학교 국제성모병원 영상의학과) ;
  • 이은서 (안산대학교 방사선학과) ;
  • 한효정 (안산대학교 방사선학과) ;
  • 허윤희 (검단탑병원 영상의학과) ;
  • 최재호 (안산대학교 방사선학과)
  • Received : 2023.10.24
  • Accepted : 2023.11.29
  • Published : 2023.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

This study was intended to evaluate the shielding rate of radiation shields manufactured using 3D printers that have recently been used in various fields by comparing them with existing shields made of lead, and to find out their applicability through experiments. A 3D printer shield made of tungsten filament 1 mm, 2 mm, 4 mm shield, RNS-TX (nanotungsten) 1.1 mm, lead 0.2 mmPb, and 1mmPb were exposed to 99mTc, 18F, and 201TI for 15, 30, 45 minutes, and 60 minutes after measuring cumulative dose three times. Based on this, the shielding rate of each shield was calculated based on the dose in the absence of the shield. In addition, 99mTc, 18F, and 201TI were located 100 cm away from the phantom in which the OSLD nano Dot device was inserted, and if there was no shield for 60 minutes, the dose of thyroid was measured using 1.0 mm of lead shield, 1.1 mm of RNS-TX shield, and 2 mm of tungsten shield made by 3D printer. The use of shields during radiation shielding emitted from open radiation sources all resulted in a reduction in dose. The radiation dose emitted from the radionuclides under the experiment was all reduced when the shield was used. This study has been confirmed that tungsten is a material that can replace lead due to its excellent performance and efficiency as shield, and that it even shows the possibility of manufacturing a customized shield using 3D printer.

Keywords

References

  1. Han SH, Koo BY. Transmission dose measurement of gamma-ray using tungsten shield. Journal of the Korea Academia-Industrial Cooperation Society. 2018;19(9):124-29. DOI: https://doi.org/10.5762/KAIS.2018.19.9.124 
  2. Han SH. Performance evaluation of gamma-ray shielding to produce a nuclear medicine exclusive apron. Chungbuk National University Graduate School; 2017. DOI: https://doi.org/10.17946/JRST.2017.40.1.07
  3. Finnerty M, Brennan PC. Protective aprons in imaging departments: Manufacturer stated lead equivalence values require validation. European Radiology. 2005;15(7):1477-84. DOI: https://doi.org/10.1007/s00330-004-2571-2 
  4. Lee WH, Ahn SM. Evaluation of reductive effect of exposure dose by using air gap apron in nuclear medicine related work environment. The Journal of the Korea Contents Association. 2014;14(12):845-53. DOI: 10.5392/JKCA.2014.14.12.845 
  5. Mori H, Koshida K, Ishigamori O, Matsubara K. Evaluation of the effectiveness of X-ray protective aprons in experimental and practical fields. Radiological Physics and Technology. 2014;7:158-66. DOI: https://doi.org/10.1007/s12194-013-0246-x 
  6. Choi TJ, Oh TK, Kim JH, Kim OB. Development of lead free shielding material for diagnostic radiation beams. Journal of Radiological Science and Technology. 2010;21(2):232-7. Retrieved from https://www.progmedphys.org/journal/view.html?pn=search&uid=530&vmd=Full&all_k=Development%20of%20Lead%20Free%20Shielding%20Material%20for%20Diagnostic%20Radiation%20Beams& 
  7. Lee LS. The effect of a radio-protective apron and working posture on EMG activities of muscles of neck extender, trapezius and lumbar erector spine. Yonsei University Medical Library; 2004. Retrieved from https://ir.ymlib.yonsei.ac.kr/handle/22282913/128869
  8. Oh WK. Development of 3D printing system for human bone model manufacturing using medical images. Journal of Radiological Science and Technology. 2017;40(3):433-41. DOI: http://dx.doi.org/10.17946/JRST.2017.40.3.11
  9. Park HH, Lee JY, Kim JH, Nam KS, Lyu KY, Lee TS. 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. Retrieved from https://koreascience.kr/article/JAKO201328635215601.page 
  10. Lee HY. Department of radiological science. College of Health Sciences, Catholic University of Pusan, J. Korean Soc. Radiology. 2018;12(7):22-45. DOI: https://doi.org/10.7742/jksr.2018.12.7.909 
  11. Dong KR, Kim CB, Park YS, Ji YS, Kim CN, Won JU, et al. A study of individual dose for radiological technologists working with easiest. Journal of Korean Society for Indoor Environment. 2009;6(1):38-47. Retrieved from https://ir.ymlib.yonsei.ac.kr/handle/22282913/105045  105045
  12. Han SH, Koo BY. Transmission dose measurement of gamma-ray using tungsten shield. Journal of the Korea Academia-Industrial cooperation Society. 2018;19(9):124-9. DOI: https://doi.org/10.5762/KAIS.2018.19.9.124 
  13. Raissaki M, Perisinakis, K, Damilakis J, Nicholas G. Eye-lens bismuth shielding in paediatric head CT: Artifact evaluation and reduction. Pediatric Radiology. 2010;40(11):1748-54. DOI: 10.1007/s00247-010-1715-6 
  14. Wu Y, Cao Y, Wu Y, Li D. Mechanical properties and ga㎜a-ray shielding performance of 3D-printed poly-ether-ether-ketone / tungsten composites. Materials. 2020;13(20):4475. DOI: https://doi.org/10.3390/ma13204475 
  15. Yoon MS, Yoon J. Evaluation of tungsten blended filament shields made by 3D printer in radiography. Journal of Radiological Science and Technology. 2021;44(6):615-21. DOI: https://doi.org/10.17946/JRST.2021.44.6.615