Iter Physics Design Guidelines
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Iter Physics Design Guidelines At High Aspect Ratio
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Author :
language : en
Publisher:
Release Date : 1991
Iter Physics Design Guidelines At High Aspect Ratio written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
The physics requirements for ITER design are formulated in a set of physics design guidelines. These guidelines, established by the ITER Physics Group during the Conceptual Design Activity (CDA, 1988--90), were based on credible extrapolations of the tokamak physics database as assessed during the CDA, and defined a class of tokamak designs (with plasma current I (approximately)20 MA and aspect ratio A (approximately)2.5--3.5) that meet the ITER objectives. Recent US studies have indicated that there may be significant benefits if the ITER-CDA design point is moved from the low aspect ratio, high current baseline (A = 2.79, I = 22 MA) to a high aspect ratio machine at A (approximately)4, I (approximately)15 MA, especially regarding steady-state, technology-testing performance. To adequately assess the physics and technology testing capability of higher aspect ratio design options, several changes are proposed to the original ITER guidelines to reflect the latest (although limited) developments in physics understanding at higher aspect ratios. The critical issues for higher aspect ratio design options are the uncertainty in scaling of confinement with aspect ratio, the variation of vertical stability with elongation and aspect ratio, plasma shaping requirements, ability to control and maintain plasma current and q-profiles for MHD stability (and volt-second consumption), access for current drive, restrictions on field ripple and divertor plate incident angles, etc. 5 refs., 1 tab.
Iter Physics Design Guidelines
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Author :
language : en
Publisher:
Release Date : 1990
Iter Physics Design Guidelines written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Engineering test reactors categories.
Iter International Thermonuclear Experimental Reactor Physics Design Guidelines
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Author :
language : en
Publisher:
Release Date : 1990
Iter International Thermonuclear Experimental Reactor Physics Design Guidelines written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
The physics requirements for the ITER design have been set to provide reasonable assurance that the plasma performance will be sufficient to meet the goals of ITER in both physics and technology phases of operation. Considerations for an adequate level of energy confinement with a stable plasma, a satisfactory power and particle control system, an efficient heating and current drive scheme, a suitable plasma control system, a sufficient level of volt-seconds, a need for high-fluence burn, etc., along with several engineering and technology, constraints, set the machine parameters (current, size, field, etc.) The physics guidelines for the ITER design are based on reasonable extrapolations of the tokamak physics database as assessed during the ITER Conceptual Design Activities (1988--90). The reference ITER design has a nominal plasma current of 22 MA (with capability up to 25--28 MA for limited pulse duration), magnetic field of 4.85 T, major radius of 6 m, minor radius of 2.15 m, and a plasma elongation (at the 95% flux surface) of (approximately)2 that produces a nominal fusion power of (approximately)1 GW. 17 refs., 1 tab.
Iter Eda Physics Design Requirements And Plasma Performance Assessments
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Author :
language : en
Publisher:
Release Date : 1996
Iter Eda Physics Design Requirements And Plasma Performance Assessments written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Iter International Thermonuclear Experimental Reactor Physics Basis
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Author :
language : en
Publisher:
Release Date : 1990
Iter International Thermonuclear Experimental Reactor Physics Basis written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
The physics basis of ITER has been developed from an assessment of the present knowledge of tokamak physics with allowance for improvements in that knowledge during the design and construction phases of ITER. The assessment has been carried out by the ITER design team in collaboration with the international fusion program, including participation by the experimental teams of all of the major toroidal experiments. The physics basis consists of guidelines for energy confinement, operational limits, power and particle control, disruptions, current drive and heating, alpha particle physics, and plasma control. The ITER physics group has worked with the engineering groups to implement these guidelines. In addition, a preliminary design for the plasma diagnostics for ITER has been developed and an operational program has been planned. In many cases, the physics issues have not been fully resolved, and a physics R D program has been developed to complete the physics basis for ITER. 16 refs., 3 tabs.
Iter Physics Safety Interface
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Author :
language : en
Publisher:
Release Date : 1996
Iter Physics Safety Interface written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Plasma operation conditions and physics requirements to be used as a basis for safety analysis studies are developed and physics results motivated by safety considerations are presented for the ITER design. Physics guidelines and specifications for enveloping plasma dynamic events for Category I (operational event), Category II (likely event), and Category III (unlikely event) are characterized. Safety related physics areas that are considered are: (i) effect of plasma on machined and safety (disruptions, runaway electrons, fast plasma shutdown) and (ii) plasma response to ex-vessel LOCA from first wall providing a potential passive plasma shutdown due to Be evaporation. Physics models and expressions developed are implemented in safety analysis code (SAFALY, couples 0-D dynamic plasma model to thermal response of the in-vessel components). Results from SAFALY are presented.
Iter Physics
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Author : C Wendell Horton, Jr
language : en
Publisher: World Scientific
Release Date : 2015-06-25
Iter Physics written by C Wendell Horton, Jr and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-25 with Science categories.
The promise of a vast and clean source of thermal power drove physics research for over fifty years and has finally come to collimation with the international consortium led by the European Union and Japan, with an agreement from seven countries to build a definitive test of fusion power in ITER. It happened because scientists since the Manhattan project have envisioned controlled nuclear fusion in obtaining energy with no carbon dioxide emissions and no toxic nuclear waste products.This large toroidal magnetic confinement ITER machine is described from confinement process to advanced physics of plasma-wall interactions, where pulses erupt from core plasma blistering the machine walls. Emissions from the walls reduce the core temperature which must remain ten times hotter than the 15 million degree core solar temperature to maintain ITER fusion power. The huge temperature gradient from core to wall that drives intense plasma turbulence is described in detail.Also explained are the methods designed to limit the growth of small magnetic islands, the growth of edge localized plasma plumes and the solid state physics limits of the stainless steel walls of the confinement vessel from the burning plasma. Designs of the wall coatings and the special 'exhaust pipe' for spent hot plasma are provided in two chapters. And the issues associated with high-energy neutrons — about 10 times higher than in fission reactions — and how they are managed in ITER, are detailed.
Iter Conceptual Design Report
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Author :
language : en
Publisher:
Release Date : 1991
Iter Conceptual Design Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Engineering test reactors categories.
Requirements For Iter Diagnostics
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Author :
language : en
Publisher:
Release Date : 1991
Requirements For Iter Diagnostics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
The development and design of plasma diagnostics for the International Thermonuclear Experimental Reactor (ITER) present a formidable challenge for experimental plasma physicists. The large plasma size, the high central density and temperature and the very high thermal wall loadings provide new challenges for present measurement techniques and lead to a search for new methods. But the physics and control requirements for the long burn phase of the discharge, combined with very limited access to the plasma, constrained by the requirement for radiation shielding of the coils and sharing of access ports with heating and current drive power, remote manipulation, fueling and turn blanket modules, make for very difficult design choices. An initial attempt at these choices has been made by an international team of diagnostic physicists, gathering together in a series of three workshops during the ITER Conceptual Design Activity. This paper is based on that report and provides a summary of its most important points. To provide a background against which to place the diagnostic requirements and design concepts, the ITER device, its most important plasma properties and the proposed experimental program will be described. The specifications for the measurement of the plasma parameters and the proposed diagnostics for these measurements will then be addressed, followed by some examples of the design concepts that have been proposed. As a result of these design studies, it was clear that there were many uncertainties associated with these concepts, particularly because of the nuclear radiation environment, so that a Research and Development Program for diagnostic hardware was established. It will also be briefly summarized.
Iter Interim Design Report Package And Relevant Documents
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Author :
language : en
Publisher:
Release Date : 1996
Iter Interim Design Report Package And Relevant Documents written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Engineering test reactors categories.