Confinement Studies In The Zt 40m Reversed Field Pinch
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Confinement Studies In The Zt 40m Reversed Field Pinch
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Author : P.G. WEBER
language : en
Publisher:
Release Date : 1990
Confinement Studies In The Zt 40m Reversed Field Pinch written by P.G. WEBER 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.
Confinement Studies In The Zt 40m Reversed Field Pinch
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Author :
language : en
Publisher:
Release Date : 1990
Confinement Studies In The Zt 40m Reversed Field Pinch 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.
Measurement of electrostatic and magnetic fluctuations in the ZT-40M Reversed Field Pinch (RFP) are used to estimate fluctuation driven transport. Edge electrostatic fluctuations appear to explain edge particle transport, analogously to some tokamak and stellarator observations. However, in contrast to tokamaks, electrostatic fluctuations do not explain the heat flux through the edge. Instead, transport of suprathermal electrons along fluctuating magnetic field lines constitute the major electron heat loss. Ion losses in ZT-40M appear to be dominated by charge exchange.
Confinement Dynamics And Boundary Condition Studies In The Reversed Field Pinch
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Author :
language : en
Publisher:
Release Date : 1988
Confinement Dynamics And Boundary Condition Studies In The Reversed Field Pinch written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
The study of confinement dynamics, including investigation of the boundary conditions required for plasma sustainment, are central to the development of the Reversed Field Pinch (RFP) concept. Recently, several insights into confinement have emerged from a detailed investigation RFP electron and ion dynamics. These insights derive from the recognition that both magnetohydrodynamic (MHD) and electron kinetic effects play an important and coupled role in RFP stability, sustainment, and confinement. In this paper, we summarize the results of confinement studies on the ZT-40M experiment, and boundary condition studies on the Wisconsin non-circular RFP experiment. A brief description of the newly commissioned Madison Symmetric Torus (MST) is also presented. 28 refs., 3 figs.
Confinement Properties Of The Rfp Reversed Field Pinch
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Author :
language : en
Publisher:
Release Date : 1990
Confinement Properties Of The Rfp Reversed Field Pinch 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.
Research in ZT-40M has been focused on elucidating the confinement properties of the Reversed Field Pinch (RFP). Recent improvements in diagnostic capability have permitted measurement of radial profiles, as well as a detailed study of the edge plasma. The emerging confinement picture for ZT-40M has several ingredients: Typically 0.3 of the Ohmic input power to ZT-40M is available to drive fluctuations. Evidence points to this fluctuational power heating the ions. Approximately one quarter of the input power is lost through radiation, with metal impurities playing a key role. Magnetic fluctations in ZT-40M are at the percent level, as measured in the edge plasma. Extrapolating these data to small radii shows stochasticity in the core plasma. Suprathermal electrons are measured in the edge plasma. These electrons originate in the core, and transport to the edge along the fluctuating magnetic field lines. Under typical conditions, these electrons constitute the major electron energy loss channel in ZT-40M. Electrostatic fluctuations dominate the edge electron particle flux, but not the electron thermal flux. The major ion loss process is charge exchange, with smaller contributions from conduction and convection. In examining these observations, and the parametric dependences of confinement, a working model for RFP confinement emerges. An overview of this model, together with implications for the multi-mega-ampere ZTH experiment will be presented.
Confinement Dynamics In The Reversed Field Pinch
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Author :
language : en
Publisher:
Release Date : 1988
Confinement Dynamics In The Reversed Field Pinch written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
The study of basic transport and confinement dynamics is central to the development of the reversed field pinch (RFP) as a confinement concept. Thus, the goal of RFP research is to understand the connection between processes that sustain the RFP configuration and related transport/confinement properties. Recently, new insights into confinement have emerged from a detailed investigation of RFP electron and ion physics. These insights derive from the recognition that both magnetohydrodynamic (MHD) and electron kinetic effects play an important and strongly coupled role in RFP sustainment and confinement dynamics. In this paper, we summarize the results of these studies on the ZT-40M experiment. 8 refs.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1994
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Aeronautics categories.
Energy Research Abstracts
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Author :
language : en
Publisher:
Release Date : 1990
Energy Research Abstracts 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 Power resources categories.
Publications Of Los Alamos Research
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Author : Los Alamos National Laboratory
language : en
Publisher:
Release Date : 1983
Publications Of Los Alamos Research written by Los Alamos National Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Research categories.
Fusion Energy Update
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Author :
language : en
Publisher:
Release Date : 1986
Fusion Energy Update written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Controlled fusion categories.
Fast Electron Generation And Transport In A Turbulent Magnetized Plasma
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Author : Matthew Randall Stoneking
language : en
Publisher:
Release Date : 1994
Fast Electron Generation And Transport In A Turbulent Magnetized Plasma written by Matthew Randall Stoneking and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.