Patent Number: 
Section: claims

1. A method of fission product disposal in permanent icefields, comprising: storing nuclear reactor waste for a period of time sufficient to let short life materials decay leaving other fission products and actinides;  separating the other fission products from the actinides;  embedding the separated other fission products in a metal matrix having a sufficient thermal conductivity and a sufficiently high melting point to successfully store the other fission products, and thereafter  placing the other fission products in a capsule container having a container core to hold the other fission products and an outer cover to encase the other fission products,  said outer cover being a corrosion resistant material with sufficient strength, density, and thermal conductivity to avoid environmental corrosion over time, and being of a dimensional configuration such that radiation outside the container does not exceed safety limits, and such that the outside surface of the container is of a sufficiently high temperature to melt ice found in permanent icefields, yet is not sufficiently high to seriously enhance corrosion of the container. 2. The method of  claim 1  wherein said metal matrix is selected from the group consisting of lead, copper and tin alloys. claim 1 3. The method of  claim 1  wherein the other fission products are oxides in a lead matrix. claim 1 4. The method of  claim 1  wherein the storing for a time sufficient to let short life materials decay is at least ten years. claim 1 5. The method of  claim 1  wherein the actinides are recycled for fuel use. claim 1 6. The method of  claim 1  wherein the capsule container is solid stainless steel, surrounding a core of fission products embedded in a metal matrix. claim 1 7. The method of  claim 1  wherein the outer cover is stainless steel. claim 1