New PDF release: Advances in Nuclear Science and Technology: Festschrift in

By Alvin M. Weinberg (auth.), Jeffery Lewins, Martin Becker (eds.)

ISBN-10: 1468452991

ISBN-13: 9781468452990

ISBN-10: 1468453017

ISBN-13: 9781468453010

Our quantity within the annual overview sequence in this party represents a departure from our ordinary perform in that it serves as a Festschrift for Eugene Wigner. Dr. Wigner has gained many honours in his lengthy, large ranging and amazing occupation spanning such a lot of upheavals in civilized lifestyles. The editors and the authors, certainly the full nuclear engineering neighborhood, will desire to take part a modest yet extra acknowledgement of the contributions he has made to nuclear engineering, now not least to the morality and professionalism of nuclear engineering in a yr that has raised such foreign issues over defense. It suffices to make a bald assertion of Eugene Wigner's lifestyles and occasions the following, for the 1st article of the quantity is a loving appreciation by way of his long-time colleague, Alvin Weinberg, an review of his contribution traditionally in the course of and after the second one international warfare yet both an account of the philosophy which Wigner supplied to the burgeoning career. Eugene Wigner was once born seventeenth November, 1902 in Budapest, Hungary and his early education is defined via Dr. Weinberg.

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Extra info for Advances in Nuclear Science and Technology: Festschrift in Honor of Eugene P. Wigner

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Table of Isotopic Masses from the Neutron to Mn", Memo-24, CP-G, April 2, 1940. H. , "Resonance Levels of Carbon", Cp-I05, May 21-8, 1942. The following five papers laid the foundation for the R-matr theory Wigner, E. , "Resonance Reactions and Anomalous Scattering", CP-G-2967, April 23, 1945. , "Reaction and Scattering Cross-Sections", November 25, 1946. P. P. , "A Mathematical Foundation of the Resonance Theory", Mon-P-238, January 15, 1947; reissued as MDDC-744, February 7, 1947. P. , "A General Basis for the Resonance Formula", MDDC-1612, April 2, 1947.

One of the best known of Wigner's contributions is the velocity distribution of neutrons that become thermal in an absorbing medium at temperature T (the so-called thermalisation problem). We knew that because of the absorption, neutrons would be hotter than the moderator, but the exact distribution of thermalised neutrons posed a formidable mathematical problem. E. , solved the problem in a paper, "Effect of the Temperature of the Moderator on the Velocity Distribution of Neutrons with Numerical Calculations for H as Moderator", September 14, 1944, CP-G-2156.

During his year at Clinton, Wigner observed "holy Tuesday" - a day he devoted to his own research, and on which he was not accessible). The R-matrix theory has since developed into a major tool for analysis of the many resonances now routinely measured, but only suspected at the time the theory was developed. It has also led to analysis of the statistical distribution of level spacing and in particular, to the Wigner spacing distribution, as well as to renewed interest in random matrices by mathematicians.

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Advances in Nuclear Science and Technology: Festschrift in Honor of Eugene P. Wigner by Alvin M. Weinberg (auth.), Jeffery Lewins, Martin Becker (eds.)

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