David Delano Clark (February 10, 1924 – December 22, 1997) was a

nuclear physicist Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions, in addition to the study of other forms of nuclear matter. Nuclear physics should not be confused with atomic physics, which studies the ...

best known for his work at

Cornell University Cornell University is a private statutory land-grant research university based in Ithaca, New York. It is a member of the Ivy League. Founded in 1865 by Ezra Cornell and Andrew Dickson White, Cornell was founded with the intention to teach an ...

building

nuclear reactor A nuclear reactor is a device used to initiate and control a fission nuclear chain reaction or nuclear fusion reactions. Nuclear reactors are used at nuclear power plants for electricity generation and in nuclear marine propulsion. Heat from nu ...

s and using them to perform

neutron activation Neutron activation is the process in which neutron radiation induces radioactivity in materials, and occurs when atomic nuclei capture free neutrons, becoming heavier and entering excited states. The excited nucleus decays immediately by emittin ...

analysis.

Biography

Born in

Austin, Texas Austin is the capital city of the U.S. state of Texas, as well as the county seat, seat and largest city of Travis County, Texas, Travis County, with portions extending into Hays County, Texas, Hays and Williamson County, Texas, Williamson co ...

. He studied at the

University of Texas The University of Texas at Austin (UT Austin, UT, or Texas) is a public research university in Austin, Texas. It was founded in 1883 and is the oldest institution in the University of Texas System. With 40,916 undergraduate students, 11,075 ...

and received his

Bachelor of Arts Bachelor of arts (BA or AB; from the Latin ', ', or ') is a bachelor's degree awarded for an undergraduate program in the arts, or, in some cases, other disciplines. A Bachelor of Arts degree course is generally completed in three or four years ...

at the

University of California, Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant u ...

in 1948. He earned a Ph.D. in physics at the

in 1953. Dr. Clark worked at the Brookhaven National Laboratory in Upton, New York prior to joining

Cornell Cornell University is a private statutory land-grant research university based in Ithaca, New York. It is a member of the Ivy League. Founded in 1865 by Ezra Cornell and Andrew Dickson White, Cornell was founded with the intention to teach an ...

in 1955. In 1961, Clark became the first director of Cornell's Ward Laboratory of Nuclear Engineering. There, he designed and built a 100-kilowatt nuclear reactor unit, the first of its class. In 1978, Clark became the head of Cornell's nuclear science and engineering department, a position he held, along with the directorship, until his retirement in 1996. He remained a

professor emeritus ''Emeritus'' (; female: ''emerita'') is an adjective used to designate a retired chair, professor, pastor, bishop, pope, director, president, prime minister, rabbi, emperor, or other person who has been "permitted to retain as an honorary title ...

until his death. In 1968 he was awarded a

Guggenheim Fellowship Guggenheim Fellowships are grants that have been awarded annually since by the John Simon Guggenheim Memorial Foundation to those "who have demonstrated exceptional capacity for productive scholarship or exceptional creative ability in the ar ...

. In 1996, Clark was named an

American Nuclear Society The American Nuclear Society (ANS) is an international, not-for-profit organization of scientists, engineers, and industry professionals that promote the field of nuclear engineering and related disciplines. ANS is composed of three communities ...

fellow, the highest honor bestowed on an individual by the society. Clark died of

cardiac arrhythmia Arrhythmias, also known as cardiac arrhythmias, heart arrhythmias, or dysrhythmias, are irregularities in the heartbeat, including when it is too fast or too slow. A resting heart rate that is too fast – above 100 beats per minute in adults ...

at his office at Cornell on December 22, 1997. Each year, in his honor, the Cornell School of Applied Engineering and Physics hands out the David Delano Clark award for the best

Master of Engineering A Master of Engineering (abbreviated MEng, M.E. or M.Eng.) is either an academic or professional master's degree in the field of engineering. International variations Australia In Australia, the Master of Engineering degree is a research deg ...

, or M.Eng., project.Listing of Cornell Engineering awards
including The David Delano Clark Award.

References

20th-century American physicists American nuclear physicists 1924 births 1997 deaths Cornell University faculty People from Austin, Texas University of Texas alumni University of California, Berkeley alumni {{US-academic-scientist-stub