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A Fissile Material (Cutoff) Treaty and its Verification - International ...

A Fissile Material (Cutoff) Treaty and its Verification - International ...

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Challenge #4Verifying Non-Production of HEU inPreviously Operating Enrichment FacilitiesInstallation/use of continuous (or portable) enrichment monitorsAlready added to centrifuge facilities in the United Kingdom <strong>and</strong> in ChinaSwipe sampling techniques to detect HEU particlesImages of micron-sized uranium particlesmade with a Secondary Ion Mass SpectrometerLeft:Right:U-235 ConcentrationU-238 ConcentrationPre-FM(C)T HEU particles may be identified with age-dating techniques (<strong>and</strong> isotopic analysis)A <strong>Fissile</strong> <strong>Material</strong> (<strong>Cutoff</strong>) <strong>Treaty</strong> <strong>and</strong> <strong>its</strong> <strong>Verification</strong> - Geneva, May 2, 2008

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