Nagra Performance Assessment of Radioactive Waste Disposal in Crystalline and Sedimentaly Host Rocks

by C. McCombie, NAGRA, Switzerland,
I. G. McKinley, NAGRA, Switzerland,
P. Zuidema, NAGRA, Switzerland,

Document Type: Proceeding Paper

Part of: High Level Radioactive Waste Management 1990


Nagra has evaluated disposal of vitrified HLW in both the crystalline basement of Northern Switzerland and in overlying argillaceous sedimentary formations. Although indicating that both options are feasible, these analyses have provided an insight into relative advantages and disadvantages of these different host rocks. Additionally, they have indicated those parts of the performance assessment model chain which are sensitive to the choice of the host rock and those which are fairly rock-type independent. The advantages of a robust near field are particularly emphasised.

Subject Headings: Radioactive wastes | Waste disposal | Sediment | Rocks | Basements | Radioactive materials | Hazardous materials | Nuclear power | Switzerland | Europe

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