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W. BENNETT LEWIS
1 908-1 987
BY FLOYD L. CULLER
IN EACH GENERATION there are men of skill and foresight who
are recognized as founders, and W. Bennett Lewis most certainly
is one of the founders of the nuclear era. All who have worked in
nuclear power anywhere in the world are aware of the contribu-
tions to nuclear science and technology made by W. Bennett
Lewis. During his lifetime, atomic science evolved to a major
technology and became a major force in our society.
There are so many things to be remembered about Dr. Lewis.
He deserves the highest honors for directing the Canadian
nuclear program, which produced the CANDU heavy water
reactor, one of the world's few commercially successful power
reactor types. Dr. Lewis's personal persistence in pursuing this
reactor type, and in developing several generations of outstand-
ing engineers and scientists to support it, resulted in the center-
piece of Canadian technological achievements and of his distin-
guished career.
He recognized the importance of abundant and available
energy as a resource and a catalyst to improve the well-being of
people in the underdeveloped nations. He recognized that the
underdeveloped world might escape from the misery of bare
subsistence, in his words, "from survival to super living," if
adequate energy were available to provide water for agriculture
and the bare necessities of shelter and transport. These thoughts
were extended in his writings and in the International Atomic
171
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172
MEMORIAL TRIBUTES
EnergyAgency (IAEA), on whose Scientific Advisory Committee
he served for more than twenty years.
In addition to his advocacy of the CANDU reactor, he was the
most constant supporter of a special accelerator to generate
intense, high-energy neutrons by spallation, with which to pro-
cluce fissionable isotopes without a basic dependence on the
natural uranium.
His long-term interests in the production of radioisotopes for
research and treatment in human disease were reflected in the
major role that Chalk River played in isotope production ant!
research. As a member and long-time chairman of IAEA's Scien-
tific Advisory Committee, he encourages! the establishment of
effective programs in the use and application of radioactive
materials for the improvement of human health worldwide.
Early on he recognized the desirability of substituting clean
energy forms—his clean energywas nuclear power for carbon-
based fuels to reduce dependence on depletable resources ant!
to cut back on the atmospheric burden of deleterious products
of combustion, inclucling carbon dioxide.
With his election as a foreign assoicate of the National AcacI-
emy of Engineering of the United States in 1976, Dr. Lewis was
recognized by his colleagues as a pioneer and visionary. We shall
be as influenced by his legacy as we were by his presence Luring
his very productive life.
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Representative terms from entire chapter:
atmospheric burden
