Philippe Matthews Show Guru Advice, Author Reviews, Tech Reviews, Entertainment News

(PhysOrg.com) -- In any kind of nuclear reactor, there is a small amount of the radioactive isotope strontium-90 that is formed as part of the regular fission process.

A fire in an electrical switch room on Tuesday briefly knocked out cooling for a pool holding spent nuclear fuel at the Fort Calhoun nuclear plant outside Omaha, Neb., plant officials said. The safety of deep pools used to store used radioactive fuel at nuclear plants has been an issue since the accident at Japan's Fukushima nuclear plant in March.