Fundamental Atomic Data And Prototype Techniques For A Generalised Collisional Radiative Model Of Medium Weight Elements In Fusion And Astrophysical Plasma
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Fundamental Atomic Data And Prototype Techniques For A Generalised Collisional Radiative Model Of Medium Weight Elements In Fusion And Astrophysical Plasma
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Author : Matthew M. Bluteau
language : en
Publisher:
Release Date : 2018
Fundamental Atomic Data And Prototype Techniques For A Generalised Collisional Radiative Model Of Medium Weight Elements In Fusion And Astrophysical Plasma written by Matthew M. Bluteau and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Quantifying the influence of heavy impurities upon plasma power balance, while seizing the opportunities they offer for passive spectroscopy, requires generalised collisional-radiative (GCR) population modelling to produce high-quality ionisation balances and cooling curves. ADAS provides a well-established framework of codes and data for the GCR modelling of light species and has been applied extensively to these scenarios. The extension of GCR modelling to medium and heavyweight elements within the ADAS framework imposes a number of updates and modifications. First, a lift of the ADAS baseline atomic structure and collision data is proposed using autostructure with the distorted-wave approximation, configuration sets selected by optimising on radiated power, and a novel, algorithmic strategy for optimising the radial scaling parameters. The truncation error of the configuration sets is bounded between an order of magnitude and 10%, while three figures of merit prove that the scaling parameter optimisation has eliminated the 20-30% structure error relative to the Cowan code. Second, fully relativistic, partially radiation-damped, Dirac R-matrix calculations of the W44+ ion are performed to showcase the challenges of generating fundamental data for heavy species. The calculations use a configuration interaction and close-coupling expansion that opens up the 3d-subshell, yielding previously unexplored transition arrays, [3d104s2-3d94s24f] and [3d104s2-3d94s4p4d], which contribute 50% of the total radiated line power coefficient (PLT ) near the temperature of peak abundance. Third, collisional excitation by ion projectiles, not just electrons, must now be considered. A broad baseline of ion-impact excitation data is fulfilled by the restoration of a code, a2iratbt, that uses semi-classical, first-order perturbative equations with a limiting function, to prevent transition probability overestimates at intermediate energies, and a radial cutoff, which ensures the xiv infinite-energy Born limit is approached at high energies. The majority of the error in this baseline comes from the neglect of close coupling, accounting for ~ 20% in triplets and
Atomic And Plasma Material Interaction Data For Fusion
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Author : International Atomic Energy Agency
language : en
Publisher: Atomic and Plasma-Material Int
Release Date : 2017-08-30
Atomic And Plasma Material Interaction Data For Fusion written by International Atomic Energy Agency and has been published by Atomic and Plasma-Material Int this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-30 with Science categories.
The present volume of Atomic and Plasma-Material Interaction Data for Fusion presents the results of a coordinated research project (CRP) on Atomic Data for Heavy Element Impurities in Fusion Reactors. In accordance with priorities in fusion energy research, data sets related to heavy element impurities are essential in plasma modelling. For example, such as data on the noble gases argon, krypton, and xenon, on the likely wall material tungsten, and on other possible impurities. Much of the work in this CRP focused on possible impurities such as chlorine, iron and silicon. The publication provides fundamental experimental and calculated data for radiative and collisional atomic processes as well as results of collisional-radiative (CR) models. The data are of interest for the interpretation of spectroscopic measurements on current and future fusion experiments, the modelling of tungsten in fusion plasma, and the design and optimization of fusion reactor experiments.
Bulletin Of The Atomic Scientists
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Author :
language : en
Publisher:
Release Date : 1970-12
Bulletin Of The Atomic Scientists written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970-12 with categories.
The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Polarization Alignment And Orientation In Atomic Collisions
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Author : Nils Andersen
language : en
Publisher: Springer
Release Date : 2017-08-02
Polarization Alignment And Orientation In Atomic Collisions written by Nils Andersen and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-02 with Science categories.
This book covers polarization, alignment, and orientation effects in atomic collisions induced by electron, heavy particle, or photon impact. The first part of the book presents introductory chapters on light and particle polarization, experimental and computational methods, and the density matrix and state multipole formalism. Examples and exercises are included. The second part of the book deals with case studies of electron impact and heavy particle excitation, electron transfer, impact ionization, and autoionization. A separate chapter on photo-induced processes by new-generation light sources has been added. The last chapter discusses related topics and applications. Part III includes examples of charge clouds and introductory summaries of selected seminal papers of tutorial value from the early history of the field (1925 – 1975). The book is a significant update to the previous (first) edition, particularly in experimental and computational methods, the inclusion of key results obtained during the past 15 years, and the extended coverage of photo-induced processes. It is intended as an introductory text for both experimental and theoretical students and researchers. It can be used as a textbook for graduate courses, as a primary source for special topics and seminar courses, and as a standard reference. The book is accompanied by electronically available copies of the full text of the key papers in Part III, as well as animations of theoretically predicted electron charge clouds and currents for some of the cases discussed in Part II.
Spectral Line Shapes In Plasmas
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Author : Evgeny Stambulchik
language : en
Publisher: MDPI
Release Date : 2015-05
Spectral Line Shapes In Plasmas written by Evgeny Stambulchik and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-05 with Electronic books categories.
This book is a printed edition of the Special Issue "Spectral Line Shapes in Plasmas" that was published in Atoms
Magnetic Fusion Technology
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Author : Thomas J. Dolan
language : en
Publisher: Springer Science & Business Media
Release Date : 2014-02-10
Magnetic Fusion Technology written by Thomas J. Dolan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-02-10 with Technology & Engineering categories.
Magnetic Fusion Technology describes the technologies that are required for successful development of nuclear fusion power plants using strong magnetic fields. These technologies include: • magnet systems, • plasma heating systems, • control systems, • energy conversion systems, • advanced materials development, • vacuum systems, • cryogenic systems, • plasma diagnostics, • safety systems, and • power plant design studies. Magnetic Fusion Technology will be useful to students and to specialists working in energy research.
Fundamentals Of Nuclear Science And Engineering Second Edition
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Author : J. Kenneth Shultis
language : en
Publisher: CRC Press
Release Date : 2007-09-07
Fundamentals Of Nuclear Science And Engineering Second Edition written by J. Kenneth Shultis and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-09-07 with Science categories.
Since the publication of the bestselling first edition, there have been numerous advances in the field of nuclear science. In medicine, accelerator based teletherapy and electron-beam therapy have become standard. New demands in national security have stimulated major advances in nuclear instrumentation.An ideal introduction to the fundamentals of nuclear science and engineering, this book presents the basic nuclear science needed to understand and quantify an extensive range of nuclear phenomena. New to the Second Edition— A chapter on radiation detection by Douglas McGregor Up-to-date coverage of radiation hazards, reactor designs, and medical applications Flexible organization of material that allows for quick reference This edition also takes an in-depth look at particle accelerators, nuclear fusion reactions and devices, and nuclear technology in medical diagnostics and treatment. In addition, the author discusses applications such as the direct conversion of nuclear energy into electricity. The breadth of coverage is unparalleled, ranging from the theory and design characteristics of nuclear reactors to the identification of biological risks associated with ionizing radiation. All topics are supplemented with extensive nuclear data compilations to perform a wealth of calculations. Providing extensive coverage of physics, nuclear science, and nuclear technology of all types, this up-to-date second edition of Fundamentals of Nuclear Science and Engineering is a key reference for any physicists or engineer.
Fundamentals Of Plasma Physics
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Author : J. A. Bittencourt
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Fundamentals Of Plasma Physics written by J. A. Bittencourt and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Science categories.
Fundamentals of Plasma Physics is a general introduction designed to present a comprehensive, logical and unified treatment of the fundamentals of plasma physics based on statistical kinetic theory, with applications to a variety of important plasma phenomena. Its clarity and completeness makes the text suitable for self-learning and for self-paced courses. Throughout the text the emphasis is on clarity, rather than formality, the various derivations are explained in detail and, wherever possible, the physical interpretations are emphasized. The mathematical treatment is set out in great detail, carrying out the steps which are usually left to the reader. The problems form an integral part of the text and most of them were designed in such a way as to provide a guideline, stating intermediate steps with answers.
Plasma Science
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Author : National Academies of Sciences Engineering and Medicine
language : en
Publisher:
Release Date : 2021-02-28
Plasma Science written by National Academies of Sciences Engineering and Medicine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-28 with categories.
Plasma Science and Engineering transforms fundamental scientific research into powerful societal applications, from materials processing and healthcare to forecasting space weather. Plasma Science: Enabling Technology, Sustainability, Security and Exploration discusses the importance of plasma research, identifies important grand challenges for the next decade, and makes recommendations on funding and workforce. This publication will help federal agencies, policymakers, and academic leadership understand the importance of plasma research and make informed decisions about plasma science funding, workforce, and research directions.
Fusion Physics
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Author : MITSURU KIKUCHI
language : en
Publisher: International Atomic Energy
Release Date : 2002-01-01
Fusion Physics written by MITSURU KIKUCHI and has been published by International Atomic Energy this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-01-01 with Antiques & Collectibles categories.
Humans do not live by bread alone. Physically we are puny creatures with limited prowess, but with unlimited dreams. We see a mountain and want to move it to carve out a path for ourselves. We see a river and want to tame it so that it irrigates our fields. We see a star and want to fly to its planets to secure a future for our progeny. For all this, we need a genie who will do our bidding at a flip of our fingers. Energy is such a genie. Modern humans need energy and lots of it to live a life of comfort. In fact, the quality of life in different regions of the world can be directly correlated with the per capita use of energy [1.1–1.5]. In this regard, the human development index (HDI) of various countries based on various reports by the United Nations Development Programme (UNDP) [1.6] (Fig. 1.1), which is a parameter measuring the quality of life in a given part of the world, is directly determined by the amount of per capita electricity consumption. Most of the developing world (~5 billion people) is crawling up the UN curve of HDI versus per capita electricity consumption, from abysmally low values of today towards the average of the whole world and eventually towards the average of the developed world. This translates into a massive energy hunger for the globe as a whole. It has been estimated that by the year 2050, the global electricity demand will go up by a factor of up to 3 in a high growth scenario [1.7–1.9]. The requirements beyond 2050 go up even higher.