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Willard Frank Libby (December 17, 1908 – September 8, 1980) was an American physical chemist noted for his role in the 1949 development of radiocarbon dating, a process which revolutionized archaeology and palaeontology. For his contributions to the team that developed this process, Libby was awarded the Nobel Prize in Chemistry in 1960. A 1927 chemistry graduate of the University of California at Berkeley, from which he received his doctorate in 1933, he studied radioactive elements and developed sensitive Geiger counters to measure weak natural and artificial radioactivity. During World War II he worked in the Manhattan Project's Substitute Alloy Materials (SAM) Laboratories at Columbia University, developing the gaseous diffusion process for uranium enrichment. After the war, Libby accepted professorship at the University of Chicago's Institute for Nuclear Studies, where he developed the technique for dating organic compounds using carbon-14. He also discovered that tritium similarly could be used for dating water, and therefore wine. In 1950, he became a member of the General Advisory Committee (GAC) of the Atomic Energy Commission (AEC). He was appointed a commissioner in 1954, becoming its sole scientist. He sided with Edward Teller on pursuing a crash program to develop the hydrogen bomb, participated in the Atoms for Peace program, and defended the administration's atmospheric nuclear testing. Libby resigned from the AEC in 1959 to become Professor of Chemistry at University of California, Los Angeles (UCLA), a position he held until his retirement in 1976. In 1962, he became the Director of the University of California statewide Institute of Geophysics and Planetary Physics (IGPP). He started the first Environmental Engineering program at UCLA in 1972, and as a member of the California Air Resources Board, he worked to develop and improve California's air pollution standards. ==Early life and career== Willard Frank Libby was born in Grand Valley, Colorado, on December 17, 1908, the son of farmers Ora Edward Libby and his wife Eva May (née Rivers). He had two brothers, Elmer and Raymond, and two sisters, Eva and Evelyn.〔(【引用サイトリンク】title=Willard F. Libby )〕 Libby began his education in a two-room Colorado schoolhouse. When he was five, Libby's parents moved to Santa Rosa, California. He attended Analy High School, near Sebastopol, from which he graduated in 1926.〔(【引用サイトリンク】 title=Willard F. Libby mural at Analy High School and a close up of the plaque that can be seen at Libby's left shoulder, May 6, 1984 )〕 Libby, who grew to be tall, played tackle on the high school football team. In 1927 he entered the University of California at Berkeley, where he received his B.S. in 1931, and his Ph.D. in 1933,〔 writing his doctoral thesis on the "Radioactivity of ordinary elements, especially samarium and neodymium: method of detection" under the supervision of Wendell Mitchell Latimer.〔(【引用サイトリンク】title=University of California: In Memoriam, 1980 – Willard Frank Libby, Chemistry: Berkeley and Los Angeles )〕 Independently of the work of George de Hevesy and Max Pahl, he discovered that the natural long-lived isotopes of samarium primarily decay by emission of alpha particles. Libby was appointed Instructor in the Department of Chemistry at the University of California, in 1933.〔 He became an assistant professor of Chemistry there in 1938.〔 He spent the 1930s building sensitive Geiger counters to measure weak natural and artificial radioactivity. In 1940, Libby married Leonor Hickey, a physical education teacher.〔 They had twin daughters, Janet Eva and Susan Charlotte, who were born in 1945.〔 He joined Berkeley's chapter of Alpha Chi Sigma in 1941.〔(【引用サイトリンク】title=Alpha Chi Sigma )〕 That year he was awarded a Guggenheim Fellowship,〔(【引用サイトリンク】publisher=John Simon Guggenheim Foundation )〕 and elected to work at Princeton University.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Willard Libby」の詳細全文を読む スポンサード リンク
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