Raymond Davis

National Medal of Science

Physical Sciences

For creating the first experiment to measure solar neutrino flux, continuing research on tracking the time dependence of the solar neutrino flux, and creating the new field of neutrino astronomy.

For creating the first experiment to measure solar neutrino flux, continuing research on tracking the time dependence of the solar neutrino flux, and creating the new field of neutrino astronomy.

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Birth
October 14, 1914
Age Awarded
87
Country of Birth
USA
Key Contributions
The Homestake Experiment
Discovered Solar Neutrinos
Awarded by
George W. Bush
Education
University of Maryland, College Park
Yale University
Areas of Impact
Energy & Environment
Affiliations
Brookhaven National Laboratory
Other Prizes
Nobel Prize
Enrico Fermi Award
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When Raymond Davis arrived for his first day at the Brookhaven National Laboratory in 1948, he was advised to “go to the library, do some reading and choose a project of my own,” Davis said years later. “Thus began a long career of doing just what I wanted to do and getting paid for it.” Davis spent most of his career at Brookhaven, a laboratory dedicated to finding peaceful uses for atomic energy. There, he studied neutrinos, tiny elementary particles that interact only through weak subatomic force and gravity. His work helped confirm that fusion reactions generate the energy of the sun.

In his most famous experiment, Davis used underground detectors in South Dakota to find solar neutrinos. His experiments found only a third of the number of neutrinos predicted by mathematical theories, causing physicists to spend decades trying to resolve this discrepancy. Years later, Davis’ experiments were proven to be accurate — although they only were only able to detect one of what was later found to be three “flavors” of neutrinos, explaining why both the mathematical theories and Davis’ experiments were scientifically sound. For his groundbreaking experiments, Davis was awarded both the National Medal of Science in 2001 and the Nobel Prize in Physics in 2002.

By Sara Grossman

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