Rudolf Schulten
Rudolf Schulten (16 August 1923 – 27 April 1996) was a German physicist who was professor at RWTH Aachen University and the main developer of the pebble bed reactor design, which was originally invented by Farrington Daniels. Schulten's concept compacts silicon carbide-coated uranium granules into hard, billiard-ball-like graphite spheres to be used as fuel for a new high temperature, helium-cooled type of nuclear reactor.