Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Informationsbedarf und Methoden der Informationsübermittlung für den Außendienst
Author: Fundamental Studies of Fusion Plasmas. Final Report
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 54
Book Description
Lodestar has carried out a vigorous research program in the areas of rf, edge plasma and divertor physics, with emphasis largely geared towards improving the understanding and performance of ion-cyclotron heating and current drive (ICRF) systems. Additionally, a research program in the field of edge plasma and divertor modeling was initiated. Theoretical work on high power rf sheath formation for multi-strap rf arrays was developed and benchmarked against recent experimental data from the new JET A2 antennas. Sophisticated modeling tools were employed to understand the sheath formation taking into account realistic three-dimensional antenna geometry. A novel physics explanation of an observed anomaly in the low power loading of antennas was applied to qualitatively interpret data on DIII-D in terms of rf sheaths, and potential applications of the idea to develop a near-field sheath diagnostic were explored. Other rf-wave related topics were also investigated. Full wave ICRF modeling studies were carried out in support of ongoing and planned tokamaks experiments, including the investigation of low frequency plasma heating and current drive regimes for IGNITOR. In a cross-disciplinary study involving both MHD and ICRF physics, ponderomotive feedback stabilization by rf was investigated as a potential means of controlling external kink mode disruptions. In another study, the instability of the ion hybrid wave (IHW) in the presence of fusion alpha particles was studied. In the field of edge plasma and divertor modeling studies, Lodestar began the development of a theory of generalized ballooning and sheath instabilities in the scrape off layer (SOL) of divertor tokamaks. A detailed summary of the technical progress in these areas during the contract period is included, as well as where references to published work can be found. A separate listing of publications, meeting abstracts, and other presentations is also given at the end of this final report.
Fundamental Studies of Fusion Plasmas
Author: R.E. AamodtPlasma and Fusion Science
Author: B. RaneeshPublisher: CRC Press
ISBN: 1771884541
Category : Science
Languages : en
Pages : 469
Book Description
In this new book, an interdisciplinary and international team of experts provides an exploration of the emerging plasma science that is poised to make the plasma technology a reality in the manufacturing sector. The research presented here will stimulate new ideas, methods, and applications in the field of plasma science and nanotechnology. Plasma technology applications are being developed that could impact the global market for power, electronics, mineral, and other fuel commodities. Currently, plasma science is described as a revolutionary discipline in terms of its possible impact on industrial applications. It offers potential solutions to many problems using emerging techniques. In this book the authors provide a broad overview of recent trends in field plasma science and nanotechnology. Divided into several parts, Plasma and Fusion Science: From Fundamental Research to Technological Applications explores some basic plasma applications and research, space and atmospheric plasma, nuclear fusion, and laser plasma and industrial applications of plasma. A wide variety of cutting-edge topics are covered, including: • basic plasma physics • computer modeling for plasma • exotic plasma (including dusty plasma) • industrial plasma applications • laser plasma • nuclear fusion technology • plasma diagnostics • plasma processing • pulsed power • space astrophysical plasma • plasma and nanotechnology Pointing to current and possible future developments in plasma science and technology, the diverse research presented here will be valuable for researchers, scientists, industry professionals, and others involved in the revolutionary field of plasma and fusion science.
Final Report of the Committee on a Strategic Plan for U.S. Burning Plasma Research
Author: National Academies of Sciences, Engineering, and MedicinePublisher: National Academies Press
ISBN: 0309487439
Category : Science
Languages : en
Pages : 341
Book Description
Fusion offers the prospect of virtually unlimited energy. The United States and many nations around the world have made enormous progress toward achieving fusion energy. With ITER scheduled to go online within a decade and demonstrate controlled fusion ten years later, now is the right time for the United States to develop plans to benefit from its investment in burning plasma research and take steps to develop fusion electricity for the nation's future energy needs. At the request of the Department of Energy, the National Academies of Sciences, Engineering, and Medicine organized a committee to develop a strategic plan for U.S. fusion research. The final report's two main recommendations are: (1) The United States should remain an ITER partner as the most cost-effective way to gain experience with a burning plasma at the scale of a power plant. (2) The United States should start a national program of accompanying research and technology leading to the construction of a compact pilot plant that produces electricity from fusion at the lowest possible capital cost.
Plasma Science
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309052319
Category : Science
Languages : en
Pages : 231
Book Description
Plasma science is the study of ionized states of matter. This book discusses the field's potential contributions to society and recommends actions that would optimize those contributions. It includes an assessment of the field's scientific and technological status as well as a discussion of broad themes such as fundamental plasma experiments, theoretical and computational plasma research, and plasma science education.
OAR Cumulative Index of Research Results
Author: Scientific and Technical Aerospace Reports
Author: Plasma Science
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309109434
Category : Science
Languages : en
Pages : 281
Book Description
As part of its current physics decadal survey, Physics 2010, the NRC was asked by the DOE, NSF, and NASA to carry out an assessment of and outlook for the broad field of plasma science and engineering over the next several years. The study was to focus on progress in plasma research, identify the most compelling new scientific opportunities, evaluate prospects for broader application of plasmas, and offer guidance to realize these opportunities. The study paid particular attention to these last two points. This "demand-side" perspective provided a clear look at what plasma research can do to help achieve national goals of fusion energy, economic competitiveness, and nuclear weapons stockpile stewardship. The report provides an examination of the broad themes that frame plasma research: low-temperature plasma science and engineering; plasma physics at high energy density; plasma science of magnetic fusion; space and astrophysical science; and basic plasma science. Within those themes, the report offers a bold vision for future developments in plasma science.
Fundamental Studies of Fusion Plasmas. Annual Performance Report
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 24
Book Description
Work on ICRF interaction with the edge plasma is reported. ICRF generated convective cells have been established as an important mechanism for influencing edge transport and interaction with the H-mode, and for controlling profiles in the tokamak scrape-off-layer. Power dissipation by rf sheaths has been shown to be significant for some misaligned ICRF and IIBW antenna systems. Near-field antenna sheath work has been extended to the far-field case, important for experiments with low single pass absorption. Impurity modeling and Faraday screen design support has been provided for the ICRF community. In the area of core-ICRF physics, the kinetic theory of heating by applied ICRF waves has been extended to retain important geometrical effects relevant to modeling minority heated tokamak plasmas, thereby improving on the physics base that is standard in presently employed codes. Both the quasilinear theory of ion heating, and the plasma response function important in wave codes have been addressed. In separate studies, it has been shown that highly anisotropic minority heated plasmas can give rise to unstable field fluctuations in some situations. A completely separate series of studies have contributed to the understanding of tokamak confinement physics. Additionally, a diffraction formalism has been produced which will be used to access the focusability of lower hybrid, ECH, and gyrotron scattering antennas in dynamic plasma configurations.