Author: Paul Gray Stokes
Publisher:
ISBN:
Category : Plasma (Ionized gases)
Languages : en
Pages : 390
Book Description
Experimental Investigations of Electron Cyclotron Emmission from Tokamak Plasmas
Author: Paul Gray Stokes
Publisher:
ISBN:
Category : Plasma (Ionized gases)
Languages : en
Pages : 390
Book Description
Publisher:
ISBN:
Category : Plasma (Ionized gases)
Languages : en
Pages : 390
Book Description
Experimental Investigations of Electron Cyclotron Emission from Laboratory Plasmas
Author: Douglas Victor Bartlett
Publisher:
ISBN:
Category : Cyclotrons
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Cyclotrons
Languages : en
Pages :
Book Description
Investigations of Electron Cyclotron Emission from a Tokamak Plasma
Author: David John Campbell
Publisher:
ISBN:
Category : Electrons
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Electrons
Languages : en
Pages :
Book Description
Two Dimensional Electron Cyclotron Emission Imaging Study of Electron Temperature Profiles and Fluctuations in Tokamak Plasmas
Author: Bihe Deng
Publisher:
ISBN:
Category :
Languages : en
Pages : 542
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 542
Book Description
Experimental Studies of Plasma Fluctuations Using Electron Cyclotron Emission on ATF (Advanced Toroidal Facility) and TEXT (Texas Experimental Tokamak).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
The great stumbling block in the quest for fusion power using magnetic confinement devices is anomalous transport. It is conjectured that turbulent plasma fluctuations may be responsible for the degraded energy confinement observed in experiments. There exists a clear need for more detailed experimental studies of plasma microturbulence. We have started a set of experiments to measure electron temperature and density fluctuations using electron cyclotron emission (ECE). The ECE systems will employ auto-correlation and cross-correlation techniques to measure radiation from the Advanced Toroidal Facility at Oak Ridge National Laboratory (ORNL) and also from the Texas Experimental Tokamak (TEXT) at the University of Texas. This set of experiments on a stellerator and a tokamak will allow a unique comparative study of the fluctuation physics in the two different magnetic configurations. This work is in support of the United States Department of Energy Tokamak Transport Initiative and involves a collaborative effort between Auburn University, Georgia Institute of Technology, the University of Texas at Austin and ORNL. 3 refs.
Publisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
The great stumbling block in the quest for fusion power using magnetic confinement devices is anomalous transport. It is conjectured that turbulent plasma fluctuations may be responsible for the degraded energy confinement observed in experiments. There exists a clear need for more detailed experimental studies of plasma microturbulence. We have started a set of experiments to measure electron temperature and density fluctuations using electron cyclotron emission (ECE). The ECE systems will employ auto-correlation and cross-correlation techniques to measure radiation from the Advanced Toroidal Facility at Oak Ridge National Laboratory (ORNL) and also from the Texas Experimental Tokamak (TEXT) at the University of Texas. This set of experiments on a stellerator and a tokamak will allow a unique comparative study of the fluctuation physics in the two different magnetic configurations. This work is in support of the United States Department of Energy Tokamak Transport Initiative and involves a collaborative effort between Auburn University, Georgia Institute of Technology, the University of Texas at Austin and ORNL. 3 refs.
Experimental Investigation on Electron Cyclotron Absorption at Down-shifted Frequency in the PLT Tokamak
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
A Study of Tearing Modes Via Electron Cyclotron Emission from Tokamak Plasmas
Author: Chuang Ren
Publisher:
ISBN:
Category :
Languages : en
Pages : 170
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 170
Book Description
A Study of Tearing Modes Via Electron Cyclotron Emission from Tokamak Plasmas
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 79
Book Description
This thesis studies several tearing mode problems from both theoretical and experimental points of view. A major part of this thesis is to demonstrate that Electron Cyclotron Emission (ECE) is an excellent diagnostic for studying an MHD mode structure and its properties in a tokamak plasma. It is shown that an MHD mode can be detected from the electron temperature fluctuations measured by ECE. The amplitude and phase profiles of the fluctuations contain detailed information about the mode structure. The ECE fluctuation phase profile indicates the magnetic island deformation due to the combination of sheared flow and viscosity. A model is presented to relate qualitatively the observed phase gradient to the local magnetic field, flow velocity shear and viscosity in a 2D slab geometry, using an ideal Ohm's law and the plasma momentum equation including flow and viscosity. Numerical solution of the resultant Grad-Shafranov-like equation describing the deformed island shows that the experimentally observed value of the phase gradient can be obtained under realistic parameters for the shear in the flow velocity and viscosity. A new approach to the tearing mode stability boundary and saturation level is also presented.
Publisher:
ISBN:
Category :
Languages : en
Pages : 79
Book Description
This thesis studies several tearing mode problems from both theoretical and experimental points of view. A major part of this thesis is to demonstrate that Electron Cyclotron Emission (ECE) is an excellent diagnostic for studying an MHD mode structure and its properties in a tokamak plasma. It is shown that an MHD mode can be detected from the electron temperature fluctuations measured by ECE. The amplitude and phase profiles of the fluctuations contain detailed information about the mode structure. The ECE fluctuation phase profile indicates the magnetic island deformation due to the combination of sheared flow and viscosity. A model is presented to relate qualitatively the observed phase gradient to the local magnetic field, flow velocity shear and viscosity in a 2D slab geometry, using an ideal Ohm's law and the plasma momentum equation including flow and viscosity. Numerical solution of the resultant Grad-Shafranov-like equation describing the deformed island shows that the experimentally observed value of the phase gradient can be obtained under realistic parameters for the shear in the flow velocity and viscosity. A new approach to the tearing mode stability boundary and saturation level is also presented.
Experimental Investigation on Electron Cyclotron Absorption at Down-shifted Frequency in the PLT Tokamak
Author: A. Cavallo
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
Electron Cyclotron Emission Measurements on the Texas Experimental Tokamak
Author: Max Eugene Austin
Publisher:
ISBN:
Category : Cyclotrons
Languages : en
Pages : 236
Book Description
Publisher:
ISBN:
Category : Cyclotrons
Languages : en
Pages : 236
Book Description