| 词条 | Clifford Shull |
| 释义 |
|name = Clifford Shull |image = Wollan and Shull 1949.jpg |image_size = 300 |caption = Clifford Shull (right), with Ernest Wollan, working with a double-crystal neutron spectrometer at the ORNL X-10 graphite reactor in 1949 |birth_date = {{Birth date|1915|09|23|mf=yes}} |birth_place = Pittsburgh, Pennsylvania |death_date = {{Death date and age|2001|03|31|1915|09|23|mf=yes}} |death_place = Medford, Massachusetts |residence = |citizenship = |nationality = United States |ethnicity = |field = Physics |work_institutions = |alma_mater = |doctoral_advisor = |doctoral_students = |known_for = Neutron scattering |author_abbrev_bot = |author_abbrev_zoo = |influences = |influenced = |prizes = Oliver E. Buckley Condensed Matter Prize {{small|(1956)}} Gregori Aminoff Prize (1993) Nobel Prize in Physics {{small|(1994)}} |religion = |footnotes = |signature = }} Clifford Glenwood Shull (September 23, 1915 in Pittsburgh, Pennsylvania – March 31, 2001) was a Nobel Prize-winning American physicist. BiographyHe attended Schenley High School in Pittsburgh, received BS from Carnegie Institute of Technology and PhD from New York University. He worked for The Texas Company at Beacon, New York during the wartime, followed by a position in the Clinton Laboratory (Oak Ridge National Laboratory), and finally joined MIT in 1955, and retired in 1986. ResearchClifford G. Shull was awarded the 1994 Nobel Prize in Physics with Canadian Bertram Brockhouse.[1] The two won the prize for the development of the neutron scattering technique. He also conducted research on condensed matter. Professor Shull's prize was awarded for his pioneering work in neutron scattering, a technique that reveals where atoms are within a material like ricocheting bullets reveal where obstacles are in the dark. When a beam of neutrons is directed at a given material, the neutrons bounce off, or are scattered by, atoms in the sample being investigated. The neutrons' directions change, depending on the location of the atoms they hit, and a diffraction pattern of the atoms' positions can then be obtained. Understanding where atoms are in a material and how they interact with one another is the key to understanding a material's properties. "Then we can think of how we can make better window glass, better semiconductors, better microphones. All of these things go back to understanding the basic science behind their operation," Professor Shull, then 79, said on the day of the Nobel announcement. ... He started [his pioneering work] in 1946 at what is now Oak Ridge National Laboratory. At that time, he said, "Scientists at Oak Ridge were very anxious to find real honest-to-goodness scientific uses for the information and technology that had been developed during the war at Oak Ridge and at other places associated with the wartime Manhattan Project." Professor Shull teamed up with Ernest Wollan, and for the next nine years they explored ways of using the neutrons produced by nuclear reactors to probe the atomic structure of materials. In Professor Shull's opinion the most important problem he worked on at the time dealt with determining the positions of hydrogen atoms in materials. "Hydrogen atoms are ubiquitous in all biological materials and in many other inorganic materials," he once {{when|date=November 2011}} said, "but you couldn't see them with other techniques. With neutrons it turned out that that was completely different, and we were very pleased and happy to find that we could learn things about hydrogen-containing structures." As he refined the scattering technique, Professor Shull studied the fundamental properties of the neutron itself. He also initiated the first neutron diffraction investigations of magnetic materials. ... "If there is a ... 'Father of Neutron Scattering' in the United States, it is Professor Shull," wrote Anthony Nunes ..., professor of physics at the University of Rhode Island. ... Professor Shull came to MIT as a full professor in 1955 and retired in 1986, though he continued to visit and to "look over the shoulders" of students doing experiments in the "remnants of my old research laboratory." Professor Shull's awards include the Buckley Prize, which he received from the American Physical Society in 1956, and election to the American Academy of Arts and Sciences (1956) and to the National Academy of Sciences (1975). In 1993 he received the Royal Swedish Academy of Sciences' Gregori Aminoff prize for his "development and application of neutron diffraction methods for studies of atomic and magnetic structures of solids."' [1] HonorsShull's Personal Awards, Honors and Prizes
Press Releases Honoring Shull
Prizes in Honor of Shull
Publications
References1. ^{{cite web |url=http://web.mit.edu/newsoffice/2001/shull.html |title=Clifford G. Shull, co-winner of 1994 Nobel Prize in physics, is dead at 85 |accessdate=2010-12-27 |date=2001-04-02 |work=MIT-News |publisher=Massachusetts Institute of Technology |archiveurl=https://www.webcitation.org/5vIW7AcRb?url=http://web.mit.edu/newsoffice/2001/shull.html |archivedate=2010-12-27 |quote=Professor Shull shared the 1994 Nobel Prize with Professor Bertram S. Brockhouse of McMaster University, Hamilton, Ontario, Canada. |deadurl=yes |df= }} External links
14 : 1915 births|2001 deaths|Scientists from Pittsburgh|Nobel laureates in Physics|American Nobel laureates|20th-century American physicists|American nuclear physicists|Carnegie Mellon University alumni|Oak Ridge National Laboratory people|New York University alumni|Schenley High School alumni|Members of the United States National Academy of Sciences|Alexander von Humboldt Fellows|Oliver E. Buckley Condensed Matter Prize winners |
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