Raymond Davis Jr. Created 2026-10-18 Updated 2026-11-05
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Raymond Davis Jr. developed a chemical method for observing solar neutrinos. In the chlorine experiment, rare interactions converted chlorine-37 into radioactive argon-37; extraction and counting of the argon atoms made a very weak interaction observable. The unexpectedly low measured rate became a central part of the solar neutrino problem.[ref]
Figure 1.
Portrait of Raymond Davis Jr.
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