Interior of the Alcator C-Mod tokamak at the  MIT Plasma Science and Fusion Center.  Two Ion Cyclotron Range of Frequencies (ICRF) antennas are visible to the left of the central column. A new magnetic field-aligned ICRF antenna is visible to the right of the central column.
<a href="//commons.wikimedia.org/w/index.php?title=User:Mgarrett&amp;action=edit&amp;redlink=1" class="new" title="User:Mgarrett (page does not exist)">Mike Garrett</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>