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Louis Rosen (June 10, 1918 – August 15, 2009) was a nuclear physicist, the "father" of the Los Alamos Neutron Science Center. Dr. Rosen held a Bachelor's degree and a Master's degree from the University of Alabama and a Doctorate in Physics from Pennsylvania State University.〔(Douglas Martin, "Louis Rosen, 91, Dies; Worked on First Nuclear Bombs" ), ''New York Times'', September 5, 2009.〕 He had never taken a course in Nuclear Physics before arriving in Los Alamos. During World War II, Rosen worked in the Manhattan Project. ==Career== While most of his colleagues at Los Alamos did not stay, Rosen remained there his entire career, and was still working there two days before his death. He built the most intense atom smasher in the world there, using a beam of protons to create an intense beam of pi meson (pion) particles. Rosen's machine was 1000 times more powerful than any previously existing particle accelerator, and was used to study the interaction of pions with other nuclear materials. He called his machine "a badly needed bridge between subnuclear and nuclear physics".〔(''Physics Today'', 1966; quoted in Douglas Martin, "Louis Rosen, 91, Dies; Worked on First Nuclear Bombs" ), ''New York Times'', September 5, 2009.〕 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「Louis Rosen」の詳細全文を読む スポンサード リンク
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