The ORMAK (Oak Ridge tokaMAK) an experimental fusion tokamak. It was ORNL's first tokamak in the laboratory’s pursuit of fusion energy. It began operations in 1971. ORMAK eventually achieved a plasma temperature of 20 million degrees, approaching record temperatures that are needed for self-sustaining fusion reactions.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/37940997@N05">Oak Ridge National Laboratory</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/oakridgelab/46436229152/">ORNL History</a>