FuelCycleOps-FuelRep-IsotSepRev1

FuelCycleOps-FuelRep-IsotSepRev1 - Fuel Reprocessing and...

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Unformatted text preview: Fuel Reprocessing and Fuel Reprocessing and Isotope Separation Methods Isotope Separation Methods for ENU4930/6937: Elements of Nuclear Safeguards, Non for ENU4930/6937: Elements of Nuclear Safeguards, Non-Proliferation, and Security Proliferation, and Security Presented by Presented by Glenn E. Sjoden, Ph.D., P.E. Glenn E. Sjoden, Ph.D., P.E. Associate Professor and Associate Professor and &L Endowed Term Professor &L Endowed Term Professor ---- 007 2010 007 2010 FP&L Endowed Term Professor FP&L Endowed Term Professor 2007.2010 2007.2010 Florida Institute of Nuclear Florida Institute of Nuclear etection and Security etection and Security Detection and Security Detection and Security Nuclear & Radiological Engineering Nuclear & Radiological Engineering University of Florida University of Florida Overview Overview Introduction Discussion of Fissile Materials French Pub Nuclear Fuel Cycle Front End / Back End Reactor Centric i Conversion Enrichment Reprocessing Summary Basic Power Reactor Schematic Basic Power Reactor Schematic From Benedict, et al, Nuc. Chem. Engineering Nuclear Power Nuclear PowerFission Chain Reactors Fission Chain Reactors Power is produced using nuclear fission to generate heat Neutrons are the fission chain carrier Criticality is the precise balance of leakage, absorption, production of neutrons (from fission) in a system called a nuclear reactor Subcritical/critical/supercritical High power/Low power in reactors Neutrons must be managed From Benedict, et al, Nuc. Chem. Engineering Discussion of Fissile Materials Discussion of Fissile Materials French Pub French Pub Detailed Information n all fissile materials on all fissile materials Criticality potential Critical Masses h i l d d Bare, shielded Isotopic Nuclear Data Packaging limitations The Nuclear Fuel Cycle: Overview The Nuclear Fuel Cycle: Overview Front End vs Back End Centered around reactor irradiation ecovered material Recovered material through reprocessing igh level waste onversion High level waste volume is <5% of fuel conversion From Reilly, et al, Passive NDA of Nuclear Materials, NRC Press, March 1991 The Nuclear Fuel Cycle: Step by Step The Nuclear Fuel Cycle: Step by Step Application and use of uranium in different chemical and physical forms. As illustrated below, this cycle pically includes the following stages: typically includes the following stages: Uranium recovery to extract (or mine) uranium ore, and concentrate (or mill) the ore to produce "yellowcake" Conversion of yellowcake into uranium hexafluoride F6) (UF6) Enrichment to increase the concentration of uranium- 235 (U235) in UF6 Deconversion to reduce the hazards associated with the depleted uranium hexafluoride (DUF6), or tailings, produced in earlier stages of the fuel cycle Fuel fabrication to convert enriched UF6 into fuel for nuclear reactors...
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FuelCycleOps-FuelRep-IsotSepRev1 - Fuel Reprocessing and...

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