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Fusion Science and Technology
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The Frisch-Peierls memorandum: A seminal document of nuclear history
The Manhattan Project is usually considered to have been initiated with Albert Einstein’s letter to President Franklin Roosevelt in October 1939. However, a lesser-known document that was just as impactful on wartime nuclear history was the so-called Frisch-Peierls memorandum. Prepared by two refugee physicists at the University of Birmingham in Britain in early 1940, this manuscript was the first technical description of nuclear weapons and their military, strategic, and ethical implications to reach high-level government officials on either side of the Atlantic. The memorandum triggered the initiation of the British wartime nuclear program, which later merged with the Manhattan Engineer District.
V.T. Astrelin, A.V. Arzhannikov, E.V. Bobukh, A.V. Burdakov, I.A. Ivanov, V.S. Koidan, K.I. Mekler, P.I. Melnikov, S.V. Polosatkin, V.V. Postupaev, A.F. Rovenskikh, S.L. Sinitskiy, A.Yu. Zabolotsky, N.G. Karlykhanov, V.A. Lykov, V.G. Nikolaev
Fusion Science and Technology | Volume 35 | Number 1 | January 1999 | Pages 384-388
Poster Presentations | doi.org/10.13182/FST99-A11963890
Articles are hosted by Taylor and Francis Online.
New approach to a vacuum ultraviolet (VUV) source based on mirror-confined plasma is presented. A plasma cloud with ne=1016−1017 cm−3 and Te=10–50 eV serves as an active medium. Such plasma can be obtained in GOL-3 facility by means of two-stage heating by relativistic electron beam. Current experiments on GOL-3-II facility are described. Results of recent study of VUV flush from hydrogen and nitrogen plasma with calculations of ionisation balance and radiation power are presented. Transitions in Li-like ions for recombination scheme and in Ne-like ions for collision excitation scheme are considered as a candidates for coherent VUV generation. Prospects of population inversion and gain achievement are discussed.