Karl-Ludwig Kratz (born 23 April 1941 in Jena, Thuringia) is a German nuclear chemist and astrophysicist.
These isotopes are obtained by nuclear fission or proton induced spallation of heavy elements as uranium.
These studies are performed in international collaborations at high-flux reactors (Institut Laue-Langevin, France) or accelerator facilities as the CERN in Switzerland or the National Superconducting Cyclotron Laboratory at Michigan State University.
Elemental abundances from Supernova explosions are calculated in close collaboration with Friedrich-Karl Thielemann of the University of Basel.
Ultra-metal-poor Population II stars in the Galactic Halo exhibit a scaled-down Solar System r-process abundance pattern.