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The Study Of Nuclear Structure Of Neutron Rich 81ge And Its Contribution In The R Process Via The Neutron Transfer Reaction 80gedp
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Book Synopsis The Study of Nuclear Structure of Neutron-rich 81Ge and Its Contribution in the R-process Via the Neutron Transfer Reaction 80Ge(d,p) by : Sunghoon Ahn (Researcher in nuclear astrophysics)
Download or read book The Study of Nuclear Structure of Neutron-rich 81Ge and Its Contribution in the R-process Via the Neutron Transfer Reaction 80Ge(d,p) written by Sunghoon Ahn (Researcher in nuclear astrophysics) and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of low-lying levels of nuclei near closed shells not only elucidates the evolution of nuclear shell structure far from stability, but also affects estimates of heavy element nucleosynthesis in supernova explosions. Especially, the properties of the low-lying levels in 81Ge[Germanium 81] are important because the sensitivity study of the r-process pointed out that the properties of the nucleus can affect the final bundance pattern. Also, the spins and parities measurements of the states are essential to understand the shape coexistence in odd-mass N = 49 isotones. This work describes the study of the odd-mass N = 49 nucleus, 81Ge in the region of neutron magic number N = 50 using an inverse kinematics (d,p) transfer reaction. The d(80Ge[Germanium 80],p)81Ge neutron transfer reaction was measured by bombarding a 174 μg[microgram]/cm2[centimetersquared] (CD2)n[deuterated polyethylene] target with a 310 MeV beam of radioactive 80Ge at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory (ORNL). The new ORNL DAQ ASICs system was commissioned for a first implementation of the development in the experiment. The excitation energies of low-lying levels were measured. From analysis of the observed angular distributions, the spins and the parities were determined, and spectroscopic factors were extracted for the first time. Neutron capture cross sections on 80Ge have been calculated in a direct-semidirect model using extracted spectroscopic factors. Furthermore, two intruder states were confirmed and their properties were compared with other odd-mass N = 49 isotones.
Book Synopsis Fission And Properties Of Neutron-rich Nuclei - Proceedings Of The Fifth International Conference On Icfn5 by : Joseph H Hamilton
Download or read book Fission And Properties Of Neutron-rich Nuclei - Proceedings Of The Fifth International Conference On Icfn5 written by Joseph H Hamilton and published by World Scientific. This book was released on 2013-09-16 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings are the fifth in the series of International Conferences covering fission and properties of neutron-rich nuclei, which are at the forefront of nuclear research. The time interval of 5 years between each conference allows for significant new results to be achieved. Recently, world leaders in theory and experiments in research and the development of new facilities for research presented their latest results in areas such as synthesis of superheavy elements, new facilities for and recent results with radioactive ion beams, structure of neutron-rich nuclei, nuclear fission process, fission yields and nuclear astrophysics. This book is a major source of the latest research in these areas and plans for the future. The conference brought together a unique group of over 100 speakers including leaders from the major nuclear laboratories in Canada, China, France, Finland, Germany, Italy, Japan, Russia, Switerzland and the US along with leading research scientists from around the world.
Book Synopsis Fission and Properties of Neutron-Rich Nuclei - Proceedings of the Fourth International Conference by :
Download or read book Fission and Properties of Neutron-Rich Nuclei - Proceedings of the Fourth International Conference written by and published by World Scientific. This book was released on 2008 with total page 769 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings are the fourth in the series of International Conferences covering fission and properties of neutron-rich nuclei, which are at the forefront of nuclear structure research. The time interval of 5 years between each conference allows for significant new results to be achieved. Recently, world leaders in theory and experiments in research and the development of new facilities for research presented their latest results in areas such as synthesis of superheavy elements, new facilities for and recent results with radioactive ion beams, structure of neutron-rich nuclei, nuclear fission process, fission yields and nuclear astrophysics. This book is a major source of the latest research in these areas and plans for the future. The conference brought together a unique group of over 100 speakers including the directors of the major nuclear laboratories in Canada, France, Germany, Japan, Russia and the US along with leading research scientists from around the world.
Book Synopsis Nuclear Structure Study with Neutrons by : J. Ero
Download or read book Nuclear Structure Study with Neutrons written by J. Ero and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on "Nuclear Structure Study with Neutrons" or ganized in Budapest between 31st July and 5th August. 1972. was the successor of a meeting held seven years ago in Antwerp. The close links between the two conferences were revealed not in name alone but. more importantly. in the choice of subjects discussed. As in Antwerp. the lectures and contributions to the Budapest Conference could be grouped under the following five main headings: nuclear spectroscopy; the optical model; the statistical model and intermediate structures; the mechanism of neutron capture and non-statistical effects; and, finally. miscellaneous special topics. The invited papers on the one hand summarizing recent developments and current thinking in one of the above main topics. and the other surveying the most important results of the contributed papers submitted to the Conference. were presented on the plenary sessions. Most of the contributed papers were read in full on three parallel sessions. This volume contains the complete text of all the lectures delivered in the plenary sessions and abstracts of the contributed papers. The invited talks were presented at the Conference in a rather random order because of technical reasons, it seemed. however, more sensible to change their order according to their subjects and to print them grouped under the above main headings. Further more we divided the Proceedings into two main parts, the first containing only the lectures of summarizing character. the second including the abstracts of the contributions together with the surveying talks.
Book Synopsis Fission And Properties Of Neutron-rich Nuclei - Proceedings Of The Second International Conference by : H K Carter
Download or read book Fission And Properties Of Neutron-rich Nuclei - Proceedings Of The Second International Conference written by H K Carter and published by World Scientific. This book was released on 2000-03-24 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Second International Conference on Fission and Properties of Neutron-Rich Nuclei continued the emphasis on fission models, fission processes, properties of neutron-rich nuclei and new directions. The responses to the conference were so extensive that 44 talks were presented in individual sessions and 35 more in two afternoons of parallel sessions. New insights and developments were discussed, including experimental and theoretical studies of ternary fission with correlated pairs with emission of a third nucleus such as helium-3, alpha particle, and beryllium-10; the structure of neutron-rich nuclei from spontaneous fission, heavy-ion-induced fission and knock-out reactions; comparisons of deep inelastic reactions and fission for production of neutron-rich nuclei; production of superheavy elements, including the discovery of element 114; experiments with radioactive beams; and proposals for new radioactive ion beam facilities.
Author :Joseph H. Hamilton Publisher :World Scientific Publishing Company Incorporated ISBN 13 :9812833420 Total Pages :730 pages Book Rating :4.8/5 (128 download)
Book Synopsis Fission and Properties of Neutron-rich Nuclei by : Joseph H. Hamilton
Download or read book Fission and Properties of Neutron-rich Nuclei written by Joseph H. Hamilton and published by World Scientific Publishing Company Incorporated. This book was released on 2008 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: "These proceedings are the fourth in the series of International Conferences covering fission and properties of neutron-rich nuclei, which are at the forefront of nuclear structure research. The time interval of 5 years between each conference allows for significant new results to be achieved. Recently, world leaders in theory and experiments in research and the development of new facilities for research presented their latest results in areas such as synthesis of superheavy elements, new facilities for and recent results with radioactive ion beams, structure of neutron-rich nuclei, nuclear fission process, fission yields and nuclear astrophysics. This book is a major source of the latest research in these areas and plans for the future. The conference brought together a unique group of over 100 speakers including the directors of the major nuclear laboratories in Canada, France, Germany, Japan, Russia and the US along with leading research scientists from around the world."--BOOK JACKET.
Book Synopsis Fission And Properties Of Neutron-rich Nuclei - Proceedings Of The Third International Conference by : Joseph H Hamilton
Download or read book Fission And Properties Of Neutron-rich Nuclei - Proceedings Of The Third International Conference written by Joseph H Hamilton and published by World Scientific. This book was released on 2003-10-16 with total page 859 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents more than 100 papers devoted to the understanding of fission processes and neutron-rich nuclei. All forms of fission, from spontaneous fission of 252Cf to high-energy fragmentation, are included. Together with studies on properties of neutron-rich nuclei and astrophysics, the book also features new experimental techniques, directions and the emerging new radioactive beam facilities.
Book Synopsis Nuclear Structure from a Simple Perspective by : R. F. Casten
Download or read book Nuclear Structure from a Simple Perspective written by R. F. Casten and published by Oxford University Press. This book was released on 1990-04-26 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a useful survey and assessment of the study of low-energy collective and single particle excitations of medium and heavy nuclei. An ideal resource for graduate students, the book covers both experimental and theoretical perspectives. The author's simple intuitive approach will help the reader to understand the empirical systematics as well as detailed model calculations, without recourse to complex--and often--confusing formalism.
Download or read book The R-process written by Yong-Zhong Qian and published by World Scientific. This book was released on 2004 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The r-process is a major mechanism for producing elements heavier than Fe. In this book, a summary of recent developments in theoretical, experimental and observational studies of the r-process are presented in 25 contributions. The collected papers are up to date, comprehensive and yet concise. The topics covered include experiments on nuclei far from stability, nuclear theory input for the r-process, observational and theoretical studies on abundances of heavy nuclei, and astrophysical models of the r-process. The proceedings have been selected for coverage in: OCo Index to Scientific & Technical Proceedings- (ISTP- / ISI Proceedings) OCo Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings) OCo CC Proceedings OCo Engineering & Physical Sciences. Contents: The r -Process in Supernovae (F-K Thielemann et al.); Weak Strength for Astrophysics (S M Austin & R Zegers); Neutron Captures and the r -Process (T Tauscher); Equation of State and Neutrino Opacity of Dense Steller Matter (S Reddy); An Overview of Observations of Neutron-Capture Elements in Metal-Poor Stars (J A Johnson); Nuclear Reaction Rates and the Production of Light p -Process Isotopes in Fast Expansions of Proton-Rich Matter (G C Jordan et al.); General Relativity and Neutrino-Driven Supernova Winds (C Y Cardall); Ejecta from Parametrized Prompt Explosion (S Wanajo et al.); Neutrino Transport in Core Collapse Supernovae (M LiebendArfer); and other papers. Readership: Graduate students and researchers in nuclear physics, astrophysics and accelerator physics."
Book Synopsis Structure of Light Neutron-rich Nuclei Studied with Transfer Reactions by :
Download or read book Structure of Light Neutron-rich Nuclei Studied with Transfer Reactions written by and published by . This book was released on 2015 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transfer reactions have been used for many years to understand the shell structure of nuclei. Recent studies with rare-isotope beams extend this work and make it possible to probe the evolution of shell structure far beyond the valley of stability, requiring measurements in inverse kinematics. We present a novel technical approach to measurements in inverse kinematics, and apply this method to different transfer reactions, each of which probes different properties of light, neutron-rich nuclei.
Book Synopsis Nuclear Structure Physics by : Amritanshu Shukla
Download or read book Nuclear Structure Physics written by Amritanshu Shukla and published by CRC Press. This book was released on 2020-10-21 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear structure Physics connects to some of our fundamental questions about the creation of universe and its basic constituents. At the same time, precise knowledge on the subject has lead to develop many important tools of human kind such as proton therapy, radioactive dating etc. This book contains chapters on some of the crucial and trending research topics in nuclear structure, including the nuclei lying on the extremes of spin, isospin and mass. A better theoretical understanding of these topics is important beyond the confines of the nuclear structure community. Additionally, the book will showcase the applicability and success of the different nuclear effective interaction parameters near the drip line, where hints for level reordering have already been seen, and where one can test the isospin-dependence of the interaction. The book offers comprehensive coverage of the most essential topics, including: • Nuclear Structure of Nuclei at or Near Drip-Lines • Synthesis challenges and properties of Superheavy nuclei • Nuclear Structure and Nuclear models - Ab-initio calculations, cluster models, Shell-model/DSM, RMF, Skyrme • Shell Closure, Magicity and other novel features of nuclei at extremes • Structure of Toroidal, Bubble Nuclei, halo and other exotic nuclei These topics are not only very interesting from theoretical nuclear physics perspective but are also quite complimentary for ongoing nuclear physics experimental program worldwide. It is hoped that the book chapters written by experienced and well known researchers/experts will be helpful for the master students, graduate students and researchers and serve as a standard & uptodate research reference book on the topics covered.
Download or read book The Neutron written by Hans G. Börner and published by World Scientific. This book was released on 2012 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reactor-based laboratory at the Institut Laue-Langevin is recognized as the world's most productive and reliable source of slow neutrons for the study of low energy particle and nuclear physics. The book highlights the impact of about 600 very diverse publications about work performed in these fields during the past more than 30 years of reactor operation at this institute. On one hand neutrons are used as a tool to generate nuclei in excited states for studying their structure and decay, in particular fission. Uniquely sensitive experiments can tell us a great deal about the symmetry characteristics of nuclei and their fission properties. On the other hand, studies with slow neutrons as the object of investigation are complementary to studies at huge particle accelerators. Experiments carried out at the ILL contribute to elucidate basic questions about the building blocks of the Universe by analyzing very precisely subtle neutron properties.
Book Synopsis Nuclear Structure Studies with Neutron-induced Reactions by : Dennis Wilmsen
Download or read book Nuclear Structure Studies with Neutron-induced Reactions written by Dennis Wilmsen and published by . This book was released on 2017 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within the scope of atomic nuclear structure studies with neutron-induced reactions, this work presents the results of a fission fragment study in the N=50-60 region, the development of a fission event tagger, and the production of the isomer Pt-195m. Each of the different sub-topics has its origin in the 2012/13 EXILL campaign, where nuclear structure studies were carried out with neutron-induced reactions, and explored with a [gamma]-efficient detector array. In the first part of this thesis, the neutron-rich region around neutron number N=50-60 was investigated with neutron-induced fission reactions on the fissile targets U-235 and Pu-241. Gamma spectroscopy methods were applied for the identification of the respective fission fragments, the assignment of [gamma] transitions, and the analysis of lifetimes of excited states. The slope fit method as well as the recently developed generalized centroid difference method were used for the analysis of lifetimes in the low picoseconds to sub-nanoseconds range. Lifetimes for the nuclei Kr-92, Kr-93 and Zr-101 are presented. In the second part, first results of the development of a new detector for the discrimination of fission fragments are presented. This fission event tagger is intended to be used at the FIssion Product Prompt [gamma]-ray Spectrometer (FIPPS) at the Institut Laue-Langevin. Within the scope of this study, two different detector designs, based on a solid plastic scintillator and an organic liquid scintillator, respectively, were tested. In the third part the possibility of the specific population of the spin-isomer in Pt-195 is discussed with special regard to its use as radioisotope in nuclear medicine. Such a specific activation could be realized via certain "doorway states" in photo-excitation reactions. The search for these doorway states was initiated within a neutron capture experiment at EXILL where potential states were found. The activation of the isomer via these states was tested afterwards with photonuclear reactions using the high intense [gamma]-beam HIGS of the TUNL facility.
Book Synopsis Nuclear Structure Far from Stability by : Aldo Covello
Download or read book Nuclear Structure Far from Stability written by Aldo Covello and published by IOS Press. This book was released on 2008 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gives an account of advances and various perspectives in the study of nuclei far from stability. This book deals with book nuclear structure models and their derivation from the basic nucleon-nucleon interaction. It discusses: the shell model, the interacting boson model and the cluster model."
Book Synopsis Changing Facets of Nuclear Structure by : Aldo Covello
Download or read book Changing Facets of Nuclear Structure written by Aldo Covello and published by World Scientific. This book was released on 2008 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive survey by international experts of recent developments in the field of nuclear structure. Both experimental and theoretical issues are covered. On the experimental side, the latest research and the envisaged developments in the most important laboratories, where radioactive ion beams are available, are reviewed in detail. On the theoretical side, the various approaches to a fundamental theory of nuclear structure starting from the nucleon-nucleon interaction are discussed, going from few-body systems, where ?ab initio? calculations are possible, to complex nuclei, where the shell model plays a key role. Results of current experimental and theoretical studies on exotic nuclei are also presented.
Book Synopsis Nuclear Reactions and Interaction of Neutrons and Matter by : Dmitriĭ Vladimirovich Skobelʹt͡syn
Download or read book Nuclear Reactions and Interaction of Neutrons and Matter written by Dmitriĭ Vladimirovich Skobelʹt͡syn and published by Springer. This book was released on 1975 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: ;Contents: Theory of Nonstationary thermalization of neutrons; Germanium gamma-radiation detectors used in investigating the scattering of neutrons; Fast neutron collimator for measuring inelastic scattering by nuclei; Measurement of spectra of fast neutrons using photoemulsions with high energy resolution; Method of determining angular distributions in the scattering of fast neutrons using photoemulsions; Interaction of deuterons with tritium and helium-3 at low energies; Lithium-drifted silicon detectors; Experimental verification of a method for calculating photonuclear reaction cross sections based on mathematical statistics; Transfer of data from amplitude analyzer to Ural-11B electronic computer; Regularization in the problem of the cross sections of photonuclear reactions.
Book Synopsis New Nuclear Structure Calculations and the Astrophysical R-process by :
Download or read book New Nuclear Structure Calculations and the Astrophysical R-process written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent developments in nuclear-structure calculations used to calculate the nuclear properties of neutron-rich heavy elements can have a dramatic effect on astrophysical r-process calculations. In particular, in the context of the macroscopic-microscopic method, studies of the effect of the finite range of the nuclear force on the surface energy, the shape dependence of the Wigner term, new shape degrees of freedom near scission, and improved single particle potentials for neutron-rich heavy elements have led to improved calculations of the properties of heavy elements. We will discuss preliminary applications of these new models to nuclei of interest in the astrophysical r-process and the implications for nuclear cosmochronology and the existence of superheavy elements in nature. 14 refs., 6 figs.
