ITER Current Drive and Heating System PDF Download
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Languages : en
Pages : 209
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 209
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Author:
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ISBN:
Category :
Languages : en
Pages : 6
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A conceptual design has been developed for a reference current drive and heating system for a HARD (High Aspect Ratio Design) option for ITER. Twelve neutral beam modules, each rated at 1.3MeV and 9.2MW, perform plasma heating and current drive. An electron cyclotron system is used for initiating the plasma and for disruption control. An alternate system has been defined which is comprised of a lower hybrid and ion cyclotron system for heating and current drive, augmented by the same electron cyclotron system proposed for the reference system. 7 refs., 8 figs., 1 tab.
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Category :
Languages : en
Pages : 6
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The ITER Current Drive and Heating (CD H) systems are required for: Ionization and current initiation; Non-inductive current ramp-up assist; Heating of the plasma; Steady-state operation with full non-inductive current drive; Current profile control; and Burn control by modulation of the auxiliary power. Steady-state current drive is the most demanding requirement, so this has driven the choice of the ITER current drive and heating systems.
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Category :
Languages : en
Pages :
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This report discusses and summarize the role of heating and non-inductive current drive in ITER as: (1) ITER must have heating power sufficient for ignition. (2) The heating system must be capable of current drive. (3) Steady-state operation is an ''ultimate goal.'' It is recognized that additional heating and current drive power (beyond what is initially installed on ITER) may be required. (4) The ''Ultimate goal of steady-state operation'' means steady-state with Q[sub CD] [ge] 5. Unlike the ''Terms of Reference'' for the ITER CDA, the ''ITER Technical Objectives and Approaches'' for the EDA sets no goal for the neutron wall load during steady-state operation. (5) In addition to bulk current drive, the ITER heating and current drive system should be used for current profile control and for burn control.
Author: Weston M. Stacey
Publisher: John Wiley & Sons
ISBN: 9783527629329
Category : Science
Languages : en
Pages : 262
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Book Description
This second edition of a popular textbook is thoroughly revised with around 25% new and updated content. It provides an introduction to both plasma physics and fusion technology at a level that can be understood by advanced undergraduates and graduate students in the physical sciences and related engineering disciplines. As such, the contents cover various plasma confinement concepts, the support technologies needed to confine the plasma, and the designs of ITER as well as future fusion reactors. With end of chapter problems for use in courses.
Author: Luciano Maiani
Publisher: Springer Nature
ISBN: 303042913X
Category : Science
Languages : en
Pages : 238
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Book Description
This open access book examines key aspects of international cooperation to enhance nuclear safety, security, safeguards, and nonproliferation, thereby assisting in development and maintenance of the verification regime and fostering progress toward a nuclear weapon-free world. Current challenges are discussed and attempts made to identify possible solutions and future improvements, considering scientific developments that have the potential to increase the effectiveness of implementation of international regimes, particularly in critical areas, technology foresight, and the ongoing evaluation of current capabilities.
Author: John Lohr
Publisher: World Scientific
ISBN: 9814548979
Category :
Languages : en
Pages : 678
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Book Description
The conference proceedings will include the papers of approximately 50 key specialists from most of the world's major fusion laboratories, including the European Community, the U.S., Russia and the PRC. The unifying themes are the emission of electron cyclotron waves by high temperature plasmas and the reciprocal process, absorption, which can be used for heating, non inductive current drive and diagnostic purposes.
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Category :
Languages : en
Pages : 10
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Book Description
Electron cyclotron (EC) power has technological and physics advantages for heating and current drive in a tokamak reactor, and advances in source development make it credible for applications in ITER. Strong single pass absorption makes heating to ignition particularly simple. The optimized EC current drive (ECCD) efficiency ({l_angle}n{r_angle}IR/P) shows a linear temperature scaling at temperatures up to (approximately) 15 keV. For temperatures above 30 keV, the efficiency saturates at approximately 0.3·102° A/(m2W) for a frequency of 220 GHz in an ITER target plasma with toroidal field of 6 T, due primarily to harmonic overlap [G.R. Smith et al., Phys. Fluids 30 3633 (1987)] and to a lesser extent due to limitations arising from relativistic effects [N.J. Fisch, Phys. Rev. A 24 3245 (1981)]. The same efficiency can also be obtained at 170 GHz for the same plasma equilibrium except that the magnetic field is reduced to (170/220) x 6 T = 4.6 T. The ECCD efficiencies are obtained with the comprehensive 3D, bounce-averaged Fokker-Planck CQL3D codes [R.W. Harvey and M.G. McCoy, Proc. IAEA TCM/Advances in Simulation and Modeling in Thermonuclear Plasmas 1992, Montreal], and BANDIT3D [M.R. O'Brien, M. Cox, C.D. Warrick, and F.S. Zaitsev, ibid.].
Author: A. Kaye
Publisher:
ISBN:
Category : Plasma (Ionized gases)
Languages : en
Pages : 72
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Author: R. W. Harvey
Publisher:
ISBN:
Category : Plasma (Ionized gases)
Languages : en
Pages : 27
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