A preposterously sized glue-on / epoxy-on serrated heatsink for DIP40 ICs - THE COLOSSUS!
Stands a massive 42mm in height - guaranteed not to fit within any factory RF shielding!
Thermal epoxy or genuine name-brand thermal tape attachment recommended.
Please consider the effects of repeated heat cycles and gravity when mounting this magnificent beast. Non-conductive safety wire or nylon zip tie supports may be indicated for vertical use.
Your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should