Radiochemical Engineering Development Center staff manipulate a vial containing plutonium-238 oxide in a hot cell. Photo by Jason Richards
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/37940997@N05">Oak Ridge National Laboratory</a>
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/oakridgelab/23885347546/">Plutonium-238</a>