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Enhancing Nuclear Safety


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Annular Cylinders Experimental Programme Containing Plutonium Solutions At Different 240Pu Contents

Nicolas Leclaire1, Pascal Grivot2, PHYSOR - 2006, 10-14/09/06, Vancouver, Canada

Document type > *Congrès/colloque

Keywords > criticality, criticality

Research Unit > IRSN/DSU/SEC

Authors > LECLAIRE Nicolas

Publication Date > 10/09/2006

Summary

From 1963 to 1976, 730 critical experiments dealing with annular cylinders containing plutonium nitrate solutions were conducted on Valduc critical facility, called “Apparatus B”. They aimed at validating critical configurations encountered in the fuel cycle, especially in storage and also at validating the 240Pu cross-sections in thermal neutron spectrum. It is to be noticed that these experiments validate criticality codes either in configurations with reactor-grade plutonium coming from the reprocessing cycle or with weapon-grade plutonium coming from the decommissioning of nuclear weapons.


1 Institut de Radioprotection et de Sûreté Nucléaire (IRSN), BP 17 -  92262 Fontenay-aux-Roses Cedex, France
2 Commissariat à l’Energie Atomique (CEA), Centre de Valduc,  21120 Is-Sur-Tille, France


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