Preface. Session I: Safe Disposal of Weapons Plutonium. 1. Weapons Plutonium Management: The Present Situation, the Methods and the Prospects; A.I. Karelin. 2. Retrievability and Safeguards Concerns Regarding Plutonium in Geological Repositories; J. Swahn. 3. Multibarriers: Their Efficacy Against Intentional Intrusion into a Geological Repository to Retrieve Disposed Plutonium; E.R. Merz. 4. Prospects for Using Plutonium as a Fuel in Russia; V.N. Mikhailov, et al. 5. Plutonium Handling and Vitrification: Main Process Steps and their Cost Evaluation; E. Trauwert, M. Demonie. Session 2: Product Forms. 6. Dissolution of Materials Containing Metal Plutonium and Oxidized Forms of Plutonium; G.P. Nikitina, et al. 7. Crystalline Ceramics: Waste Forms for the Disposal of Weapons Plutonium; R.C. Ewing, et al. 8. The Crystalline Host-Phases for Immobilization of Weapons Plutonium and Waste Actinides; B.E. Burakov, et al. 9. On the Long-Term Storage of Weapons Plutonium in Form of Criticality-Free Ceramics Containing Lithium; J.A. Trutnev, et al. 10. Incorporation of Pu and other Actinides in Borosilicate Glass and in Waste Ceramics; Hj. Matzke, J. van Geel. 11. Feasibility of Rock-Like Fuel and Glass Waste Forms for Disposal of Weapons Plutonium; H. Furuya, et al. 12. Possible Ways of the Weapon Plutonium Processing to Produce the Steady Glass Materials Suitable for Further Safe Disposal; Y.I. Matyunin, et al. 13. Management of Operational Waste from MOX Fuel Plants; F.W. Ledebrink. Session 3: Vitrification Technology. 14. SRS Vitrification Studies in Support of the U.S. Program for Disposition of Excess Plutonium; G.G. Wicks, et al. 15. On the Feasibility of Vitrifying High-Level Liquid Waste Containing High Amounts of Plutonium; M. Demonie, H. Cuyvers. 16. Vitrification of Weapons Plutonium: A Hypothetic Option or a Real Way to Solve the Problem; A.S. Aloy, E.B. Anderson. 17. Vitrification of Plutonium for Disposal; J.A.C. Marples. 18. French Appraisal of the Vitrification Option. Weapons Plutonium or how to get rid of it! A. Jouan. 19. Safety Aspects with Regard to Plutonium Vitrification Techniques; L.W. Gray, T. Kan. Session 4: Disposal in Deep Boreholes. 20. Disposition of Radionuclides in Deep Geological Formations either in Containers or Vitrified Form; T.A. Goupalo. 21. Disposition of Plutonium in Deep Boreholes; W.H. Halsey, et al. Session 5: Long Term Safety Aspects. 22. The Process of the Equipment and Room Surface Pu- Decontamination and Means to Prevent their Contamination; A.B. Pavlov, Ye.I. Yulikov. 23. Technical Basis for Pu Safeguard Practices, Handling and Disposal, PERLA and TAME Experiences; H. Dworschak. 24. Long-Term Safety Aspects of Geological Disposal of Large Quantities of Plutonium; B. Baltes. 25. MPC&A for Plutonium Disposition in the Russian Federation; W.G. Sutcliffe. 26. Ecological Safety Aspects with Regard to Plutonium Disposal; V.F. Menschikov. 6. Summary of Workshop Presentations. 7. NATO Workshop Summary evaluation. Index.