Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
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Study on the Application of Soft Magnetic Material for Effective Neutron Shielding

효과적인 중성자 차폐를 위한 경량 연자성 물질 활용방안 연구

  • Received : 2023.03.27
  • Accepted : 2023.03.28
  • Published : 2023.03.31
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Abstract

This study analyzes the neutron shielding performance of Soft Magnetic Material and proposes a military application. In general, the military protection facility has been constructed with thick concrete, so Soft Magnetic Material, consisting of boron, was used with concrete in this study. To do so, Monte-Carlo N-Particle (MCNP) was applied to simulate the Watt-fission neutron spectrum of 235U and 239Pu. As a result, a configuration of polyethylene and Soft Magnetic Material is evaluated about four times better than borated polyethylene concerning the atomic weight of boron inside each shielding material. Also, when a nuclear weapon explosion is simulated in MCNP, 1 mm of Soft Magnetic Material with 20 cm of concrete shows about 55% more additional neutron shielding performance compared to when Soft Magnetic Material is not used. In this work, the neutron shielding performance of Soft Magnetic Material could be identified and Soft Magnetic Material would be useful for neutron shielding if applicable to concrete structure.

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References

  1. Jean P and Guessoum N. 2001. Neutron-capture and 2.22 MeV Emission in the Atmosphere of the Secondary of an X-ray Binary. Astron. Astrophys 378(2):509-521. https://doi.org/10.1051/0004-6361:20011201
  2. Sariyer D, Kucer R and Kucer N. 2015. Neutron Shielding Properties of Concretes Containing Boron Carbide and Ferro-boron. Procedia Soc. Behav. Sci. 195: 1752-1756. https://doi.org/10.1016/j.sbspro.2015.06.320
  3. Leinweber G, Barry DP, Block RC, Burke JA, Remley KE, Rapp MJ and Danon Y. 2018. Cadmium Resonance Parameters from Neutron Capture and Transmission Measurements at the RPI LINAC. Proc. 13th International Topical Meeting on the Nuclear Applications of Accelerators. https://doi.org/10.48550/arXiv.1801.03424
  4. Reilly D, Ensslin N, Smith H Jr and Kreiner S. 1991. Passive Nondestructive Assay of Nuclear Materials (NUREG/CR5550). 1st ed. 723pp. United States Nuclear Regulatory Commission.
  5. Gencel O, Bozkurt A, Kam E and Korkut T. 2011. Determination and Calculation of Gamma and Neutron Shielding Charateristics of Concretes Containing Different Hematite Properties. Ann. Nucl. Energy 38(12):2719-2723. https://doi.org/10.1016/j.anucene.2011.08.010
  6. Dijulio DD, Copper-Jensen CP, Perrey H, Fissum K, Rofors E, Scherzinger J and Bentley PM. 2017. A Polyethylene-B4C Based Concrete for Enhanced Neutron Shielding at Neutron Research Facilities. Nucl. Instrum. Methods. Phys. Res. B Nucl. Instrum. Meth. A 859:41-46. https://doi.org/10.1016/j.nima.2017.03.064
  7. Oto B, Gur A, Kavaz E, Cakir T and Yaltay N. 2016. Determination of Gamma and Fast Neutron Shielding Parameters of Magnetitie Concretes. Prog. Nucl. Energy 92:71-80. https://doi.org/10.1016/j.pnucene.2016.06.011
  8. Kang CW and Kim YC. 2022. Preliminary Study of Cosmic-ray Shielding Material Design Using Monte-Carlo Radiation Transport Code. JKSR 16(5):527-536. https://doi.org/10.7742/jksr.2022.16.5.527
  9. Lee SK, Lee SM, Choi GJ and Lee BH. 2021. Analysis of Radiation Shielding Effect of Soft Magnetic Material applied to Military Facility. JKSR 15(2):191-199. https://doi.org/10.7742/jksr.2021.15.2.191
  10. Shultis, Kenneth J and Richard EF. 2011. An MCNP Primer. 42pp.
  11. Holmes RJ. 1982. Gamma-ray and Neutron Source (AAEC/S-24). pp. 123-136. Australian Atomic Energy Commission Research Establishment.