• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 2002.11a
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• pp.89-103
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• 2002

기존 원자력 발전 기술이 안고 있는 문제점들을 해결함과 동시에 장기적으로 기존의 경ㆍ중수형 원자로를 대체 또는 보완할 수 있을 것으로 기대되는 새로운 원자력에너지시스템으로서 토륨ㆍ우라늄ㆍ플루토늄 혼합 핵주기에 기초한 용융염원자로(Molten Salt Reactor)의 일종인 AMBIDEXTER (Advanced Molten-salt Break-even Inherently-safe Dual-missioning EXperimental and TEst Reactor) 원자력에너지 복합시스템의 개념설계 연구가 진행중이다.(중략)

• Transactions of the Korean Society of Pressure Vessels and Piping
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• v.20 no.2
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• pp.170-177
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• 2024

Transportable Micro Reactors (TMRs) harness the advantages of Small Modular Reactors (SMRs) while addressing the need for mobility and transient power supply. These factory-manufactured reactors can be quickly installed and relocated, enhancing their practicality. This study evaluates radiation safety during transportation, focusing on exposure from radioactive sources within the reactor vessel. While significant radiation from fission products in the active core can be effectively shielded by the inner reflector, the induced radiation from surrounding components requires careful assessment to ensure compliance with exposure limits for operators. Given the constraints on the size and weight of the transport container, minimizing fast neutron leakage is crucial. Utilizing OpenMC for depletion calculations, we identify six key isotopes-Cr-51, Fe-59, Mn-54, Mn-56, Co-58, and Co-60-generated during a conservative operational scenario. Our findings indicate that maintaining surface doses below 10 mSv/h requires fast neutron leakage from the inner surface of the reactor vessel to be under 1.0E+8/cm²·sec. Therefore, optimizing core size and reflector thickness is essential for the effective design of TMRs without the need for additional shielding.