The forged "superstructure" of the Alcator C-Mod tokamak in the C-Mod cell at the MIT Plasma Science and Fusion Center.
Unknown photographer
CC BY 3.0
Scanned on 2012-05-07 from an 8"×10" print to JPEG (600 dpi) using Canon CanoScan LiDE 60 by Geoffrey M. Olynyk.