Inverse Mode Conversion of Ion Bernstein Waves in Tokamak Plasmas PDF Download
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Author: H. Romero
Publisher:
ISBN:
Category :
Languages : en
Pages : 22
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Book Description
Author: H. Romero
Publisher:
ISBN:
Category :
Languages : en
Pages : 22
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Book Description
Author: Abhay Ram
Publisher:
ISBN:
Category :
Languages : en
Pages : 10
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Author: Abhay Ram
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
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Author: John Rice
Publisher: Springer Nature
ISBN: 3030922669
Category : Science
Languages : en
Pages : 158
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Book Description
This book provides a comprehensive look at the state of the art of externally driven and self-generated rotation as well as momentum transport in tokamak plasmas. In addition to recent developments, the book includes a review of rotation measurement techniques, measurements of directly and indirectly driven rotation, momentum sinks, self-generated flow, and momentum transport. These results are presented alongside summaries of prevailing theory and are compared to predictions, bringing together both experimental and theoretical perspectives for a broad look at the field. Both researchers and graduate students in the field of plasma physics will find this book to be a useful reference. Although there is an emphasis on tokamaks, a number of the concepts are also relevant to other configurations.
Author: Eric Alan Nelson-Melby
Publisher:
ISBN:
Category :
Languages : en
Pages : 352
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Book Description
(Cont.) The PCI system in C-Mod measures line-integrated density fluctuations using a CO2 laser which passes vertically through the plasma. The density fluctuation pattern is an inherently 3-dimensional structure, so the full-wave code TORIC has been used to interpret the one-dimensional measurements, which have some unexpected features, such as multiple peaks and troughs in amplitude. Strong IBW signal was often observed to the low-field side of the mode conversion layer. The importance of the parallel electric field for these IBW density fluctuation measurements is identified. IBW wavenumbers from 5 to 12 cm-1 have been detected, which is within the range of the code results.
Author: R. McWilliams
Publisher:
ISBN: 9780883183977
Category : Cyclotron waves
Languages : en
Pages : 528
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Author: A.K. RAM
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Controlled fusion
Languages : en
Pages : 116
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Author: Paul Bonoli
Publisher:
ISBN:
Category :
Languages : en
Pages : 42
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Author: John C. Wright
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
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Book Description
Fast Wave (FW) studies of mode conversion (MC) processes at the ion -- ion hybrid layer in toroidal plasmas N must capture the disparate scales of the FW and mode converted ion Bernstein (IBW) and ion cyclotron waves (ICW). Correct modeling of the MC layer requires resolving wavelengths on the order of k pi~1 which leads to a scaling of the maximum poloidal mode number, Mmax, proportional to 1/p (p=pi/L). The computational resources needed a scale with the number of radial (Nr), poloidal (No), and toroidal (No) elements as Nr * No * N3o. Two full wave codes, a massively-parallel-processor (MPP) version of the TORIC-2D finite Larmor radius code [M. Brambilla, Plasma Phys. Controlled Fusion 41, 1 (1999)] and also an all orders spectral code AORSA2D [E. F. Jaeger et al., Phys. Plasmas 9, 1873 (2002) ], have been developed which for the first time are capable of achieving the resolution and speed necessary to address mode conversion phenomena in full two-dimensional (2-D) toroidal geometry. These codes have been used in conjunction with theory and experimental data from the Alcator C-Mod [I. H. Hutchinson et al., Phys. Plasmas 1, 1511 (1994)] to gain new understanding into the nature of FWMC in tokamaks. The MPP version of TORIC is also now capable of running with sufficient resolution to model planned lower hybrid range of frequencies (LHRF) experiments in the Alcator C-Mod.
