Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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Scintillation Properties of Acrylate Based Plastic Scintillator by Photoploymerization Method

아크릴레이트 기반 광중합 플라스틱 섬광체의 섬광 특성

  • Kim, Sunghwan (Department of Radiological Science, Cheongju University) ;
  • Lee, JoonIl (Department of Radiology, Daegu Health College)
  • Received : 2016.12.06
  • Accepted : 2016.12.20
  • Published : 2016.12.31
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Abstract

In this study, we prepared and characterized a acrylate based UV-curable plastic scintillator. It was used co-polymers TMPTA, DHPA and Ultima $Gold^{TM}$ LLT organic scintillator. The emission spectrum of the plastic scintillator was located in the range of 380~520 nm, peaking at 423 nm. And the scintillator is more than 50% transparent in the range of 400~800 nm. The emission spectrum is well match to the quantum efficiency of photo-multiplier tube and the fast decay time of the scintillation is 12 ns, approximately. This scintillation material provides the possibility of combining 3D printing technology, and then the applications of the plastic scintillator may be expected in human dosimetry etc.

본 연구에서는 TMPTA와 DHPA를 모체로 Ultima $Gold^{TM}$ LLT 유기 섬광체를 혼합하여 자외선에 광중합 특성을 가진 플라스틱 섬광체를 처음으로 제작하고, 그 섬광특성을 조사하였다. 제조된 플라스틱 섬광체의 발광스펙트럼 파장 범위는 380~520 nm이었으며, 중심파장은 423 nm 었다. 400~800 nm의 파장범위에 대하여 50% 이상의 투명도를 나타내었으며, 섬광체의 섬광 감쇠 시간특성이 12 ns인 1개의 성분이 측정되었다. 제작된 플라스틱 섬광체의 발광파장 스펙트럼이 광전자증배관의 양자효율 특성과 잘 매칭되며, 향후 3D 프린팅 소재로서의 최적화 공정 개발을 통해 3D 프린팅 기술에 접목함으로써 인체 도시메트리에 활용하고자 한다.

Keywords

References

  1. M. G. Schorr, F. L. Torney: Solid non-crystalline scintillation phosphors, Physics Review. 80, 474-475, 1950
  2. Jonathan Dumazert, Romain Coulon, FrFdFrick Carrel, et. al.: Sensitive and transportable gadolinium- core plastic scintillator sphere for neutron detection and counting, Nuclear Instruments and Methods in Physics Research Section A, 828, 181-190, 2016 https://doi.org/10.1016/j.nima.2016.05.054
  3. Krasimir K. Mitev: Measurement of $^{222}Rn$ by absorption in plastic scintillators and alpha/beta pulse shape discrimination, Applied Radiation and Isotopes, 110, 236-243, 2016 https://doi.org/10.1016/j.apradiso.2016.01.027
  4. Feng Xie, Wengang Jiang, Xuesong Li, Xiaobing He, Jiamei Zhang, Gongshuo Yu: Single channel beta-gamma coincidence system for radioxenon measurement using well-type HPGe and plastic scintillator detectors, Nuclear Instruments and Methods in Physics Research Section A, 729, 900-904, 2013 https://doi.org/10.1016/j.nima.2013.08.070
  5. M. Watanabe, M. Katsumata, H. Ono, et. al.: First performance test of newly developed plastic scintillator for radiation detection, Nuclear Instruments and Methods in Physics Research Section A, 770, 197-202, 2015 https://doi.org/10.1016/j.nima.2014.10.005
  6. Nerine J. Cherepy, Robert D. Sanner, Patrick R. Beck, et. al.: Bismuth- and lithium-loaded plastic scintillators for gamma and neutron detection, Nuclear Instruments and Methods in Physics Research Section A, 778, 126-132, 2015 https://doi.org/10.1016/j.nima.2015.01.008
  7. G. Buss, A. Dannemann, U. Holm, K. Wick: Radiation Damage by Neutrons to Plastic Scintillator, IEEE Transactions on Nuclear Science, 42, 4, 315-319, 1995 https://doi.org/10.1109/23.467829
  8. M. Kuramoto, T. Nakamori, S. Kimura, S. Gunji, M. Takakura, J. Kataoka: Development of TOF-PET using Compton scattering by plastic scintillators, Nuclear Instruments and Methods in Physics Research Section A, In Press, 2016
  9. Bingheng Lu, Dichen Li, Xiaoyong Tian: Development Trends in Additive Manufacturing and 3D Printing, Engineering, 1, 85-89, 2015 https://doi.org/10.15302/J-ENG-2015012
  10. Jun Zhu, Yunyu Ding, Jiayi Zhu, et. al.: Preparation and characterization of a novel UV-curable plastic scintillator, Nuclear Instruments and Methods in Physics Research, A817, 30-34, 2016 https://doi.org/10.1016/j.nima.2016.02.023
  11. Kokoro Mori, Masaaki Nakayama, Hitoshi Nishimura: Role of the core excitons formed by $4f{\rightarrow} 4f $ transitions of $Gd^{3+}$ on $Ge^{3+}$ scintillation in $Gd_2SiO_5:Ce^{3+}$, Physics Review, 67, 165-206, 2003
  12. Glenn F. Knoll: Radiation Detection and Measurement(4th edition), Wiley, 223-274, 2010
  13. Michael F. L'Annunziata, Michael J. Kessler: Handbook of Radioactivity Analysis (3rd Edition), Elsevier Inc., 423-573, 2012