Louis Hempelmann

Louis Hempelmann
Los Alamos badge
Born(1914-03-05)March 5, 1914
DiedJune 21, 1993(1993-06-21) (aged 79)
Resting placeBellefontaine Cemetery, St. Louis, Missouri
OccupationPhysician
Known forManhattan Project

Louis Henry Hempelmann Jr, (March 5, 1914 – June 21, 1993) was an American physician who was the director of the Health Group at the Manhattan Project's Los Alamos Laboratory during World War II. After the war he was involved in research into radiology. A paper he published in the New England Journal of Medicine in 1949 warned of the dangers of using fluoroscopes to measure the size of children's feet.