Jerome M. B. Kellogg was an American physicist who played a major role in transforming Los Alamos into a leading scientific research laboratory after World War II.
After earning his Ph.D. in physics from the University of Iowa in 1932, Kellogg worked at Columbia University with renowned physicists I. I. Rabi and J. R. Zacharias, conducting pioneering research on nuclear magnetic moments. During World War II, he also directed Columbia’s Radiation Laboratory under the National Defense Research Committee.
Kellogg joined Los Alamos in 1946 and soon became leader of the Physics Division. Under his leadership, the laboratory expanded its research capabilities by developing major facilities, including the 13-MeV Van de Graaff accelerator, Omega West research reactor, variable-energy cyclotron, and high-current Cockcroft-Walton accelerator.
He also championed several groundbreaking research programs. His division established the Los Alamos Meson Physics Facility (LAMPF), which became a nationally important center for particle physics and medical research, and helped launch Project Sherwood, Los Alamos’ controlled thermonuclear fusion research program. During the 1950s, he encouraged the laboratory’s involvement in space science and the Vela Satellite Program, which monitored nuclear explosions to support international arms control agreements while also advancing research in astrophysics and the solar system.
Beyond his scientific work, Kellogg served as a senior reviewer responsible for declassifying scientific information for international publication after the war. He became Assistant Director for Scientific Personnel in 1964 before retiring in 1966.
Kellogg is remembered for his leadership, which helped establish Los Alamos as a world-class research institution with lasting contributions to nuclear physics, fusion research, space science, and national security. He passed away on September 25, 1981.