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Transition From Asymmetric To Symmetric Fission In The 235un F Reaction
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Book Synopsis Transition from Asymmetric to Symmetric Fission in the 235U(n, F) Reaction by :
Download or read book Transition from Asymmetric to Symmetric Fission in the 235U(n, F) Reaction written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Prompt [gamma] rays from the neutron-induced fission of 235U have been studied using the GEANIE spectrometer situated at the LANSCE/WNR ''white'' neutron facility. Gamma-ray production cross sections for 29 ground-state-band transitions in 18 even-even fission fragments were obtained as a function of incident neutron energy, using the time-of-flight technique. Independent yields were deduced from these cross sections and fitted with standard formulations of the fragment charge and mass distributions to study the transition from asymmetric to symmetric fission. The results are interpreted in the context of the disappearance of shell structure at high excitation energies.
Book Synopsis Probabilities of Symmetric and Asymmetric Fission in the Proton Bombardment of by : Atomic Energy of Canada Limited
Download or read book Probabilities of Symmetric and Asymmetric Fission in the Proton Bombardment of written by Atomic Energy of Canada Limited and published by . This book was released on 1959 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Probabilities of symmetric and asymmetric fission in the proton bombardment of th232 by : B. J. Bowles
Download or read book Probabilities of symmetric and asymmetric fission in the proton bombardment of th232 written by B. J. Bowles and published by . This book was released on 1957 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis RADIOCHEMICALLY DETERMINED RATIOS OF ASYMMETRIC TO SYMMETRIC FISSION OF U$sup 233$, Pu$sup 239$, AND U$sup 235$ AS A FUNCTION OF NEUTRON ENERGY. by :
Download or read book RADIOCHEMICALLY DETERMINED RATIOS OF ASYMMETRIC TO SYMMETRIC FISSION OF U$sup 233$, Pu$sup 239$, AND U$sup 235$ AS A FUNCTION OF NEUTRON ENERGY. written by and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of studies concerning the asymmetric/symmetric ratio for fission induced by neutrons of energies corresponding to various fission resonances are presented. These studies were carried out primarily with monoenergetic neutrons at 1.8, 2.3, and 4.3 ev. The fission ratios in the low-energy resonance region was found to change from resonance to resonance, and the ratios appear to fall into symmetry classes each of which has a characteristic peak-to-valley mass yield ratio. It appears that a spin dependence is involved in the mass distribution as predicted by the Bohr model. The exact nature of this dependence is not clearly understood. (J.R.D.).
Book Synopsis On the Competition Between Symmetric and Asymmetric Fission by : T. Haddad
Download or read book On the Competition Between Symmetric and Asymmetric Fission written by T. Haddad and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low-energy Fission Systematics of the Fermium Isotopes by :
Download or read book Low-energy Fission Systematics of the Fermium Isotopes written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent measurements have shown that 259Fm gives the highest total kinetic energy release and the most symmetric mass division so far observed for spontaneous fission. These results continue the trends observed previously in the fermium isotopes toward higher total kinetic energies and more symmetric mass division with increasing mass of the fermium isotopes. The transition from asymmetric mass division (254Fm) to highly favored symmetric mass division (259Fm) now appears to have been completed. These features are consistent with the simple postulate that the more neutron-rich fermium isotopes show an increase in the yield of symmetric fragments and in the total kinetic energy because symmetric mass division of fermium (Z = 100) nuclei results in two fragments which have the magic proton number of 50 and are close to the magic neutron number of 82. The proximity of the fragments to the doubly magic configuration seems to have a profound effect on the mass division and total kinetic energy release in fission.
Book Synopsis Theory of Nuclear Fission by : Hans J. Krappe
Download or read book Theory of Nuclear Fission written by Hans J. Krappe and published by Springer Science & Business Media. This book was released on 2012-02-06 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together various aspects of the nuclear fission phenomenon discovered by Hahn, Strassmann and Meitner almost 70 years ago. Beginning with an historical introduction the authors present various models to describe the fission process of hot nuclei as well as the spontaneous fission of cold nuclei and their isomers. The role of transport coefficients, like inertia and friction in fission dynamics is discussed. The effect of the nuclear shell structure on the fission probability and the mass and kinetic energy distributions of the fission fragments is presented. The fusion-fission process leading to the synthesis of new isotopes including super-heavy elements is described. The book will thus be useful for theoretical and experimental physicists, as well as for graduate and PhD students.
Book Synopsis The Nuclear Fission Process by : Cyriel Wagemans
Download or read book The Nuclear Fission Process written by Cyriel Wagemans and published by CRC Press. This book was released on 1991-09-20 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides a comprehensive review of knowledge regarding nuclear fission from both the purely scientific and practical points of view. Topics discussed include fission barriers, spontaneous fission, neutron-induced fission cross-sections, photon- and electron-induced fission, charged particle induced fission fragment angular momentum and ternary fission. The characteristics of other reaction products are also discussed. Contributed articles from several distinguished nuclear scientists guarantee adequate treatment of some of the specialized research fields included in the text. Intended primarily as an introduction to nuclear fission for graduate students, this book will also provide useful information for nuclear physicists involved with research or teaching.
Book Synopsis Clusters in Nuclei by : Christian Beck
Download or read book Clusters in Nuclei written by Christian Beck and published by Springer. This book was released on 2010-09-09 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following the pioneering discovery of alpha clustering and of molecular resonances, the field of nuclear clustering is presently one of the domains of heavy-ion nuclear physics facing both the greatest challenges and opportunities. After many summer schools and workshops, in particular over the last decade, the community of nuclear molecular physics decided to team up in producing a comprehensive collection of lectures and tutorial reviews covering the field. This first volume, gathering seven extensive lectures, covers the follow topics: * Cluster Radioactivity * Cluster States and Mean Field Theories * Alpha Clustering and Alpha Condensates * Clustering in Neutron-rich Nuclei * Di-neutron Clustering * Collective Clusterization in Nuclei * Giant Nuclear Molecules By promoting new ideas and developments while retaining a pedagogical nature of presentation throughout, these lectures will both serve as a reference and as advanced teaching material for future courses and schools in the fields of nuclear physics and nuclear astrophysics.
