효과적인 중성자 차폐를 위한 경량 연자성 물질 활용방안 연구
Study on the Application of Soft Magnetic Material for Effective Neutron Shielding
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This study analyzes the neutron shielding performance of Soft Magnetic Material andproposes a military application. In general, the military protection facility has been constructed withthick concrete, so Soft Magnetic Material, consisting of boron, was used with concrete in this study. Todo so, Monte-Carlo N-Particle (MCNP) was applied to simulate the Watt-fission neutron spectrum of235U and 239Pu. As a result, a configuration of polyethylene and Soft Magnetic Material is evaluated aboutfour times better than borated polyethylene concerning the atomic weight of boron inside each shieldingmaterial. Also, when a nuclear weapon explosion is simulated in MCNP, 1 mm of Soft Magnetic Materialwith 20 cm of concrete shows about 55% more additional neutron shielding performance compared towhen Soft Magnetic Material is not used. In this work, the neutron shielding performance of Soft MagneticMaterial could be identified and Soft Magnetic Material would be useful for neutron shielding if applicableto concrete structure.
Abstract
This study analyzes the neutron shielding performance of Soft Magnetic Material andproposes a military application. In general, the military protection facility has been constructed withthick concrete, so Soft Magnetic Material, consisting of boron, was used with concrete in this study. Todo so, Monte-Carlo N-Particle (MCNP) was applied to simulate the Watt-fission neutron spectrum of235U and 239Pu. As a result, a configuration of polyethylene and Soft Magnetic Material is evaluated aboutfour times better than borated polyethylene concerning the atomic weight of boron inside each shieldingmaterial. Also, when a nuclear weapon explosion is simulated in MCNP, 1 mm of Soft Magnetic Materialwith 20 cm of concrete shows about 55% more additional neutron shielding performance compared towhen Soft Magnetic Material is not used. In this work, the neutron shielding performance of Soft MagneticMaterial could be identified and Soft Magnetic Material would be useful for neutron shielding if applicableto concrete structure.
참고문헌 (11)
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