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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 510 - 517 (8page)
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Increasing proliferation resistance of plutonium by way of increased 238Pu content is of interest to thenuclear nonproliferation and international safeguards community. Considering the high alpha decay heatof 238Pu, increasing the isotopic fraction leads to a noticeably higher amount of heat generation withinthe plutonium. High heat generation is especially unattractive in the scenario of weaponization. Uponweaponization of the plutonium, the plutonium may generate enough heat to elevate the temperature inthe high explosives to above its self-explosion temperature, rendering the weapon useless. In addition,elevated temperatures will cause thermal expansion in the components of a nuclear explosive devicethat may produce thermal stresses high enough to produce failure in the materials, reducing theeffectiveness of the weapon. Understanding the technical limit of 238Pu required to reduce the possibilityof weaponization is key to reducing the current limit on safeguarded plutonium (greater than 80 at. %238Pu). The plutonium vector evaluated in this study was found by simulating public information onLightbridge’s fuel design for pressurized water reactors. This study explores the temperature profile andmaximum stress within a simple (first generation design) hypothetical nuclear explosive device of fourunique scenarios over time. Analyzing the transient development of both the temperature profile andmaximum stress not only establishes a technical limit on the 238Pu content, but also establishes a timelimit for which each scenario would be useable.
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참고문헌 (22)
참고문헌 신청
Y. Kimura / 2011 / Evaluation of proliferation resistance of plutonium based on decay heat / J. Nucl. Sci. Technol 48(5):715~723
G. Kessler / 2011 / Proliferation-proof Uranium/Plutonium Fuel Cycles, Safeguards and Non-proliferation / KIT Scientific Publishing
IAEA / 1972 / Information Circular, INFCIRC/ 153
C. Lloyd / 2018 / Proliferation resistant plutonium : an updated analysis / Nucl. Eng. Des 330:297~302
S. Fetter / 1990 / Detecting Nuclear Warheads / Sci. Global Secur 1:225~302
G. Kessler / 2011 / Proliferation-proof Uranium/Plutonium Fuel Cycles, Safeguards and Non-proliferation / KIT Scientific Publishing
IAEA / 1972 / Information Circular, INFCIRC/ 153
C. Lloyd / 2018 / Proliferation resistant plutonium : an updated analysis / Nucl. Eng. Des 330:297~302
S. Fetter / 1990 / Detecting Nuclear Warheads / Sci. Global Secur 1:225~302
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