File:Plutonium ring.jpg

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English: A weapons-grade ring of electrorefined plutonium, typical of the rings refined at Los Alamos and sent to Rocky Flats for fabrication. The ring has a purity of 99.96%, weighs 5.3 kg, and is approx 11 cm in diameter. It is enough plutonium for one bomb core. The ring shape helps with criticality safety (less concentrated material).
Deutsch: Ein Ring aus elektroraffiniertem, waffenfähigem Plutonium, typisch für die Ringe, die in Los Alamos raffiniert und zur Weiterverarbeitung nach Rocky Flats geschickt wurden. Der Ring hat einen Reinheitsgrad von 99,96 %, wiegt 5,3 kg und hat einen Durchmesser von etwa 11 cm. Die Menge an Plutonium reicht für einen Bombenkern. Die Ringform hilft dabei, die Kritikalitätssicherheit zu gewährleisten (geringere Materialkonzentration).
Français : Un anneau de plutonium électroraffiné de qualité militaire, typique des anneaux raffinés à Los Alamos et envoyés à Rocky Flats pour fabrication. L'anneau a une pureté de 99,96%, pèse 5,3 kg et mesure environ 11 cm de diamètre. C'est assez de plutonium pour un noyau de bombe. La forme annulaire contribue à la protection contre la criticité (matériau moins concentré).
Date
Source Scanned from: Christensen, Dana (1995). "The Future of Plutonium Technology". Los Alamos Science (23): 170.
Author Los Alamos National Laboratory
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© This image comes from Los Alamos National Laboratory, a national laboratory privately operated under contract from the United States Department of Energy by Los Alamos National Security, LLC between October 1, 2007 and October 31, 2018. LANL allowed anyone to use it for any purpose, provided that the copyright holder is properly attributed. Redistribution, derivative work, commercial use, and all other use is permitted. LANL requires the following text be used when crediting images to it: (link)

Unless otherwise indicated, this information has been authored by an employee or employees of the Los Alamos National Security, LLC (LANS), operator of the Los Alamos National Laboratory under Contract No. DE-AC52-06NA25396 with the U.S. Department of Energy. The U.S. Government has rights to use, reproduce, and distribute this information. The public may copy and use this information without charge, provided that this Notice and any statement of authorship are reproduced on all copies. Neither the Government nor LANS makes any warranty, express or implied, or assumes any liability or responsibility for the use of this information.

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A weapons-grade ring of electrorefined plutonium

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