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Books > Science & Mathematics > Physics > Nuclear structure physics
Pulsars, generally accepted to be rotating neutron stars, are dense, neutron-packed remnants of massive stars that blew apart in supernova explosions. They are typically about 10 kilometers across and spin rapidly, often making several hundred rotations per second. Depending on star mass, gravity compresses the matter in the cores of pulsars up to more than ten times the density of ordinary atomic nuclei, thus providing a high-pressure environment in which numerous particle processes, from hyperon population to quark deconfinement to the formation of Boson condensates, may compete with each other. There are theoretical suggestions of even more "exotic" processes inside pulsars, such as the formation of absolutely stable strange quark matter, a configuration of matter even more stable than the most stable atomic nucleus, T56Fe. In the latter event, pulsars would be largely composed of pure quark matter, eventually enveloped in nuclear crust matter. These features combined with the tremendous recent progress in observational radio and x-ray astronomy make pulsars nearly ideal probes for a wide range of physical studies, complementing the quest of the behavior of superdense matter in terrestrial collider experiments. Written by an eminent author, Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics gives a reliable account of the present status of such research, which naturally is to be performed at the interface between nuclear physics, particle physics, and Einstein's theory of relativity.
Als Einfuhrung in die Forschung mit Synchrotonstrahlung bietet dieses Buch eine UEbersicht uber die experimentellen und theoretischen Grundlagen der Erzeugung und Nutzung von Synchrotonstrahlung. Im ersten Teil des Buches werden die experimentellen Techniken und Methoden der Spektroskopie, Beugung und abbildenden Verfahren dargestellt. In einem ausfuhrlichen zweiten Teil werden anhand einer Vielzahl von Anwendungsbeispielen die reichhaltigen Moeglichkeiten fur die Forschung in der Physik, Chemie und Medizin vorgestellt.
A treatment of the experimental techniques and instrumentation most often used in nuclear and particle physics experiments as well as in various other experiments, providing useful results and formulae, technical know-how and informative details. This second edition has been revised, while sections on Cherenkov radiation and radiation protection have been updated and extended.
Nuclear physics between 1921 and 1947 shaped more than any other science thepolitical landscape of our century and the public opinion on physical research. Using quantitative scientometric methods, a new branch in the history of science, the author focuses on the developments of nuclear physics in these formative years paying special attention to theimpact of German emigrants on the evolution of the field as a cognitive and social unity. The book is based on a thorough analysis of various citation analyses thus producing results that should be more replicable and more objective. The scientometric techniques should complement the more qualitative approach usually applied in historical writing. This makes the text an interesting study also for the historian in general.
This volume contains the lectures presented by invited speakers at the IV La Rlibida International Summer School on Nuclear Physics. This was the IV edition of a summer school organized by our group every three years on topics related to nuclear physics. This Summer School was aimed mainly at young nuclear physicists, both theoreticians and experimentalists, engaged in research work at predoctoral or recent postdoctoral level. The topics treated in the three previous editions of the School were: "Heavy Ion Collisions," "Theory of Nuclear Structure and Reactions" and "Nuclear As trophysics." This year's School was entitled "Nuclear Physics at the Borderlines." Special emphasis was placed on those topics along which nuclear physics is ex pected to develop in the next few years. The aim of the School was to provide the attendants with an opportunity to get into close contact with experienced researchers and listen to their account of the present state-of-the-art in nuclear physics and the main future lines of development."
Ever since the late 1930s, scientists have been sharply divided on the question of atomic energy. It is hardly surprising, then, that the American public is so apprehensive about its use. Hack M. Holl, former chief historian a the U.S. Department of Energy, characterizes the furor over nuclear energy as "one of the great debates in American history." In this second edition of The American Atom, the editors have updated the collection of primary documents that tell the story of atomic energy in the United States from the discover of fission through the development of nuclear weapons, international proliferation, and attempts at control. Anyone interested in the evolution of the issues will want to examine the book's major sections on the Manhattan Project, the Oppenheimer Case, the hydrogen bomb, nuclear testing and the test ban, proliferation, arms control, and the strategy of deterrence.
A graduate-level one-volume textbook and reference work on the structure and physics of atomic nuclei. Throughout this book the underlying emphasis is on how a nucleus is constituted through the interaction between the nucleons. The book is structured into three parts: the first part contains a detailed treatment of the two-nucleon force and of basic model-independent nuclear properties; the second part discusses the experimental results of nuclear models and their bases in fundamental theory; the third part deals in some detail with alpha-decay and fission.
Quark-Gluon Plasma (QGP) is a state of matter predicted by the theory of strong interactions - Quantum Chromodynamics (QCD). The area of QGP lies at the interface of particle physics, field theory, nuclear physics and many-body theory, statistical physics, cosmology and astrophysics. In its brief history (about a decade), QGP has seen a rapid convergence of ideas from these previously diverging disciplines. This volume includes the lectures delivered by eminent specialists to students without prior experience in QGP. Each course thus starts from the basics and takes the students by steps to the current problems. The chapters are self-contained and pedagogic in style. The book may therefore serve as an introduction for advanced graduate students intending to enter this field or for physicists working in other areas. Experts in QGP may also find this volume a handy reference. Specific examples, used to elucidate how theoretical predictions and experimentally accessible quantities may not always correspond to one another, make this book ideal for self-study for beginners. This feature will also make the volume thought-provoking for QGP practitioners.
Rapid progress in quantum theory brings us new important results which are often not immediately clear to all who need them. But fortunately, this is also followed by simplifications and unifications of our previous concepts. The inverse problem method ("The most beautiful idea of the XX-th century" - Zakharov et aI., 1980) has just both these aspects. It is rather astonishing that it took 50 years after the foundation of quantum mechanics for the creation of the "pictures" showing the direct connection of obser vables with interactions. Recently, illustrations of this type began to appear in the literature (e. g., how potentials are deformed with thc shift of one energy level or change of some resonance reduced width). Although they are transparent to those studying the quantum world and can be included within the necessary elements of quantum literacy, they are still largely unknown even to many specialists. For the first time, the most interesting of these pictures enriching our quantum intuition are col lected here and placed at your disposal. The readers of this monograph have the advantage of getting the latest information which became available after the publication of the Russian edition. It has been incor porated here in the simplest presentation possible. For example, new sections con cerning exactly solvable models, including the multi-channel, multi-dimensional ones and with time dependent potentials have been added. The first attempts in solving the three-body inverse problem are also mentioned."
Widely used in high-energy and particle physics, gaseous radiation detectors are undergoing continuous development. The first part of this book provides a solid background for understanding the basic processes leading to the detection and tracking of charged particles, photons, and neutrons. Continuing then with the development of the multi-wire proportional chamber, the book describes the design and operation of successive generations of gas-based radiation detectors, as well as their use in experimental physics and other fields. Examples are provided of applications for complex events tracking, particle identification, and neutral radiation imaging. Limitations of the devices are discussed in detail. Including an extensive collection of data and references, this book is ideal for researchers and experimentalists in nuclear and particle physics. It has been reissued as an Open Access publication on Cambridge Core.
Nuclear Physics: Principles and Applications is an introduction to the basic theory and applications of modern nuclear physics. Aimed at students taking a first course in nuclear physics, the text is divided into two broad sections. The first part provides a general introduction to nuclear physics, whilst the latter half focuses on some of the most important and current applications, including nuclear medicine, instrumentation and energy from fission and fusion. Written from an experimental point of view, this text offers the reader many practical examples and problems to help encourage understanding. Although, complex material treatments are avoided, derivations of formulae are given as necessary, but with a minimum mathematical complexity. Nuclear Physics: Principles and Applications
Results important for the general understanding of nuclear structure have emerged from the study of the nuclei in the mass region around the neutron-deficient and neutron-rich Zirconium isotopes. This research report gives the proceedings of a workshop which brought together about 70 experts in the area. Review papers deal with the theoretical interpretation of the unusual properties of these medium-mass nuclei, using the mean field approach, a microscopic description, the interacting boson model and particle rotor calculations. Papers also discuss experimental procedures for studying nuclei far from stability and the possibility of complete spectroscopy. The reviews are supplemented by short contributions presenting very new results. Phenomena discussed include the interplay between subshell effects and the strong proton-neutron interaction in determining nuclear shape, the coexistence of different nuclear shape and the occurrence of fast beta decay.
The fundamental model of nuclear structure is the shell model. However, its application has been limited to light nuclei (up to the sd shell) or heavier nuclei with only a few valence nucleons outside closed shells. Its application beyond these limits has been prohibited so far by the large scale of the calculations involved. For the description of nuclei beyond the sd shell having several valence nucleons the introduction of collective models becomes necessary. The first comprehensive phenomenological model of nuclear structure was the geometric collective model of A. Bohr and B.R. Mottelson. An alternative approach was proposed in 1974 by A. Arima and F. Iachello, known as the Interacting Boson Model. This model, which uses group theoretical techniques in the description of nuclear collective properties, has the advantage of relative simplicity, allowing for detailed calculations of the properties of even medium and heavy nuclei which cannot be reached by the shell model yet. Several extensions and generalizations of the model have appeared over the last decade. Algebraic descriptions for the effects of clustering, permanent octupole deformation, and giant resonances have also been given. For the description of odd nuclei the Interacting Boson-Fermion Model has been introduced, and nuclear supersymmetries associated with it have been analysed. The present text is designed to provide physicists with an accessible introduction to the subject.
In diesem Buch werden zunachst die verschiedenen Typen von Plasmen ausfuhrlich beschrieben: Gleichstrom-Entladung, kapazitive und induktive Kopplung mit Radiofrequenz, die magnetfeldunterstutzte Anregung mittels Heliconwellen; schliesslich noch Ionenstrahlen. Breiten Raum nimmt dann die Plasmadiagnostik ein, die in einem separaten Kapitel mit vier Methoden exemplarisch vorgestellt wird. Daran anschliessend erfolgt eine umfassende Darstellung der beiden modernen Verfahren Sputtern und Trockenatzen, mit denen heute Oberflachen durch Beschichten und gezieltes Abtragen auf vielfaltige Weise modifiziert werden. Besondere Aufmerksamkeit wird reaktiven Verfahren und den dort auftretenden Reaktionsmechanismen, aber auch der Ionenstrahlmethode, gewidmet. Zahlreiche Anwendungsbeispiele sind in den Text eingestreut. Fur die Neuauflage wurde das Buch vollstandig neu bearbeitet und aktualisiert. Hinzu kamen neue Kapitel uber Plasmadiagnostik und hochdichte sowie induktiv-gekoppelte Plasmen."
A number of IAEA Member States generate relatively small quantities of radioactive waste and/or disused sealed sources in research or in the application of nuclear techniques in medicine and industry. This publication presents a modular approach to the design of waste processing and storage facilities to address the needs of such Member States with a cost effective and flexible solution that allows easy adjustment to changing needs in terms of capacity and variety of waste streams. The key feature of the publication is the provision of practical guidance to enable the users to determine their waste processing and storage requirements, specify those requirements to allow the procurement of the appropriate processing and storage modules and install and eventually operate those modules.
This publication highlights the importance of mentoring and coaching for knowledge transfer across the generations of the workforce. It captures successful mentoring and coaching practices and approaches being followed by different types of nuclear organizations including at nuclear power plants, technical support organizations, national nuclear organizations and regulatory bodies. The publication also includes case studies from Member State organizations that have used mentoring and coaching as an effective tool for knowledge transfer, skill building and performance improvement.
This publication summarizes the reviewed information distributed in previous IAEA publications and provides an up to date, overall picture of the management of disused sealed radioactive sources (DSRSs) based upon the current status and trends in this field. It incorporates the most recent experience in source management, including newly developed techniques used for DSRS conditioning and storage. Problems encountered and lessons learned are also highlighted in the publication in order to help avoid the mistakes commonly made in the past in managing disused sources.
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