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Lawrence Berkeley National Laboratory
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Lawrence Berkeley National Laboratory : ウィキペディア英語版
Lawrence Berkeley National Laboratory
}}
| director = Paul Alivisatos
| city = Berkeley, California, U.S.
| budget =
| type = Unclassified
| staff = 4,000
| campus =
| students = 800
| nobel_laureates = 13〔(Nobel Prizes affiliated with Berkeley Lab )〕
| operating_agency = University of California〔(University of California Office of the President ) (accessed 2013-07-15).〕
| website =
}}
The Lawrence Berkeley National Laboratory (LBNL or LBL), commonly referred to as Berkeley Lab, is a United States national laboratory located in the Berkeley Hills near Berkeley, California that conducts scientific research on behalf of the United States Department of Energy (DOE). It is managed and operated by the University of California,〔 The laboratory overlooks University of California, Berkeley's main campus.
==History==
The laboratory was founded in 1931 as the Radiation Laboratory of the University of California, associated with the Physics Department, on August 26 by Ernest Lawrence. It centered physics research around his new instrument, the cyclotron, a type of particle accelerator for which he won the Nobel Prize in Physics in 1939. Throughout the 1930s, Lawrence pushed to create larger and larger machines for physics research, courting private philanthropists for funding. After the laboratory was scooped on a number of fundamental discoveries that they felt they ought to have made, the "cyclotroneers" began to collaborate more closely with the department's theoretical physicists, led by Robert Oppenheimer. The lab moved to its site on the hill above campus in 1940 as its machines, specifically the cyclotron, became too large for the university grounds.〔
Lawrence courted government as his sponsor in the early years of the Manhattan Project, the American effort to produce the first atomic bomb during World War II, and along with Applied Physics Laboratory at Johns Hopkins (which helped develop the proximity fuse), and the MIT Radiation Laboratory (which helped to develop radar) ushered in the era of "Big Science". Lawrence's lab helped contribute to what has been judged to be the three most valuable technology developments of the war (the atomic bomb, proximity fuse, and radar). Using the newly created 184-inch cyclotron as a mass spectrometer, Lawrence and his colleagues developed the principle behind the electromagnetic enrichment of uranium, which was put to use in the calutrons (named after the university) at the massive Y-12 facility in Oak Ridge, Tennessee. The cyclotron was finished in November 1946; the Manhattan Project shut down two months later.
After the war, Lawrence sought to maintain strong government and military ties at his lab, which became incorporated into the new system of Atomic Energy Commission (AEC) (now Department of Energy (DOE)) National Laboratories, but in the early 1950s set out that the lab's purpose would be primarily non-classified research. For security purposes, classified weapons research was assigned to the more isolated locations, Los Alamos National Laboratory (LANL) (established during the war) in New Mexico and the new UC Radiation Laboratory at Livermore (today's Lawrence Livermore National Laboratory (LLNL)). Livermore, about an hour southeast of Berkeley, was established at a former naval air station in 1952 by Lawrence and Edward Teller from what was originally a splinter from the original Radiation Laboratory. Some weapons-related and collaborative research continued at Berkeley Lab until the 1970s, however.
Shortly after the death of Lawrence in August 1958, the UC Radiation Laboratory (both branches) was renamed the Lawrence Radiation Laboratory and the Berkeley location became the Lawrence Berkeley Laboratory in 1971,〔(【引用サイトリンク】publisher=American Physical Society )〕 although many continued to call it the "Rad Lab." Gradually, another shortened form came into common usage, "LBL". Its formal name was amended to Ernest Orlando Lawrence Berkeley National Laboratory in 1995, when "National" was added to the names of all DOE labs. "Ernest Orlando" was later dropped to shorten the name. Today, the lab is commonly referred to as "Berkeley Lab".

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