Charles Till was the longtime Associate Laboratory Director for Engineering Research at Argonne National Laboratory. Dr. Till directed civilian nuclear power reactor development at Argonne National Laboratory. This program, the largest by far in the U.S. in the last decades of the century, was devoted entirely to research and development of nuclear reactors for electrical power generation. About two thousand engineers, scientists and supporting staff, and the large complex of the facilities required for such R&D, were devoted to this work. For ten years, from 1984 to 1994, the work of this team was focused entirely on development of an Argonne brain-child, the Integral Fast Reactor. This technology promised an inherently safer reactor, a shorter-lived waste, and a limitless fuel supply.

Dr. Till was born and raised in Canada, and became a U.S. citizen in 1969.

Engineering Physics B. Eng.; 1956, University of Saskatchewan.
Physics M. Sc.; 1958, University of Saskatchewan.
Athlone Fellow.; 1958-60 (2 years of graduate study in U.K. for the top engineering graduates of the major Canadian universities.)
PhD; Engineering, Specialty Reactor Physics, 1960 Imperial College, University of London.
M.B.A.; Executive Program, 1976 University of Chicago.

National Research Council of Canada 1956-58.  Developed the standards device in use to this day for calibration of instruments for accurate humidity measurement.

United Kingdom Atomic Energy Authority 1959. Physics calculations on Advanced Gas Cooled Reactors. (graphite moderated systems.)

Canadian General Electric, 1961 – 1963. In charge of the startup and startup physics measurements of NPD-2, (Nuclear Power Demonstration) the first of the CANDU reactors.

Argonne National Laboratory, 1963 to retirement in 1998. At Argonne initially studied plutonium fueling of the LWR, but in a year or so turned to development of the fast breeder reactor, his lifelong professional interest.

Entered Argonne as an Assistant Physicist. Promoted to Senior Physicist 1972. Over the years from 1963 promoted through the various supervisory ranks, becoming Director of the Reactor Physics Division (100 or so PhD level people and supporting staff) in 1973. In 1980 made Director of the Argonne Reactor Development Program in its entirety.

Had experience with all the main reactor types in use around the world.

Fellow of the American Nuclear Society, awarded the Walker Cisler Medal in 1994 for fast breeder reactor development, in particular for the Integral Fast Reactor.

National Academy of Engineering election in 1989, for the Integral Fast Reactor and for work earlier that established the systematics of the Doppler Effect in fast reactors.


Charles Edgar Till was the luckiest man that any of us ever knew.

His mother, Margery, had tried for 10 years to become pregnant.  It was an extremely joyful event for his mother and father when Charles was born in rural Saskatchewan, Canada, in 1934.  But this was before penicillin had become in use, so when Margery caught an infection in the hospital, it was to prove fatal.  Just before she passed away two months after giving birth to Charles, she wanted to hold her baby and mercifully, she was able to.

You can read the entire obituary here

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