Computational and experimental forensics characterization of weapons-grade plutonium produced in a thermal neutron environment

Jeremy M. Osborn; Kevin J. Glennon; Evans D. Kitcher; Jonathan D. Burns; Charles M. Folden III; Sunil S. Chirayath

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자료유형: 학술저널

저자정보: Jeremy M. Osborn Kevin J. Glennon Evans D. Kitcher Jonathan D. Burns Charles M. Folden III Sunil S. Chirayath

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제50권 제6호

발행연도: 2018.1

수록면: 820 - 828 (9page)

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The growing nuclear threat has amplified the need for developing diverse and accurate nuclear forensicsanalysis techniques to strengthen nuclear security measures. The work presented here is part of aresearch effort focused on developing a methodology for reactor-type discrimination of weapons-gradeplutonium. To verify the developed methodology, natural UO2 fuel samples were irradiated in a thermalneutron spectrum at the University of Missouri Research Reactor (MURR) and produced approximately20 mg of weapons-grade plutonium test material. Radiation transport simulations of common thermalreactor types that can produce weapons-grade plutonium were performed, and the results are presentedhere. These simulations were needed to verify whether the plutonium produced in the natural UO2 fuelsamples during the experimental irradiation at MURR was a suitable representative to plutonium producedin common thermal reactor types. Also presented are comparisons of fission product and plutoniumconcentrations obtained from computational simulations of the experimental irradiation at MURRto the nondestructive and destructive measurements of the irradiated natural UO2 fuel samples. Gammaspectroscopy measurements of radioactive fission products were mostly within 10%, mass spectroscopymeasurements of the total plutonium mass were within 4%, and mass spectroscopy measurements ofstable fission products were mostly within 5%.

참고문헌 (24)

참고문헌 신청

Sunil S. Chirayath / 2015 / Trace Fission Product Ratios for Nuclear Forensics Attribution of Weapons-Grade Plutonium from Fast and Thermal Reactors / Science & Global Security 23(1):48~67

J. Carson Marka / 1993 / Explosive properties of reactor‐grade plutonium / Science & Global Security 4(1):111~128

First Atomic Energy of Canada Limited / 1997 / Canada Enters the Nuclear Age: A Technical History of Atomic Energy of Canada Limited as Seen from Its Research Laboratories / McGill-Queen’s Press

S.E. Jensen / 1998 / Description of the Magnox Type of Gas Cooled Reactor (MAGNOX)

Ali Ahmad / 2015 / A Conversion Proposal for Iran’s IR-40 Reactor with Reduced Plutonium Production / Science & Global Security 23(1):3~19

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