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Invention could make spent nuclear fuel useful for irradiation purposes
Date:4/4/2013

ificantly less expensive, and as such could open the technology to more routine uses. We could double the world supply of gamma rays with this new technology and still won't come close to meeting the market demand for this valuable resource."

Sterile medical supplies are a huge market for gamma irradiation, Goff said, and increased used of irradiation could reduce the need for sterilization with ethylene oxide gas, which is a highly toxic and flammable gas.

The system Goff has invented adds another level of protection to prevent unwanted fission products from escaping the spent nuclear fuel and entering the environment, but allows gamma radiation to be released in a controlled manner for irradiation purposes. Because recently spent nuclear fuel less than 12 years old - still has fairly intense levels of radiation, it provides an economical way to irradiate products.

The nuclear waste handling systems needed to use the new technology are similar to those already being used at nuclear power plants, he said, and the process of sterilizing the products is almost identical to processes used in the cobalt 60 irradiation industry today.

Aside from providing a commercial use for spent nuclear fuel, the approach would also reduce the significant expense of otherwise storing it, Goff noted. This system might also have special appeal in developing countries, where refrigeration and other approaches to preserving food, as well as access to sterile medical supplies, are not always readily available.


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Contact: Russell Goff
Russell@G-Demption.com
515-231-0736
Oregon State University
Source:Eurekalert

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