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Fast Wave Heating Of The Plt And Pdx Tokamaks In The Ion Cyclotron Range Of Frequencies Icrf
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Book Synopsis Fast Wave Heating of the PLT and PDX Tokamaks in the Ion Cyclotron Range of Frequencies (ICRF). by : W. M. Hooke
Download or read book Fast Wave Heating of the PLT and PDX Tokamaks in the Ion Cyclotron Range of Frequencies (ICRF). written by W. M. Hooke and published by . This book was released on 1976 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radio-frequency Heating and Propagation in Tokamak Plasmas in the Ion Cyclotron Range of Frequencies by : Tak Kuen Mau
Download or read book Radio-frequency Heating and Propagation in Tokamak Plasmas in the Ion Cyclotron Range of Frequencies written by Tak Kuen Mau and published by . This book was released on 1977 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fast Wave Current Drive Experiment on the DIII-D Tokamak by :
Download or read book Fast Wave Current Drive Experiment on the DIII-D Tokamak written by and published by . This book was released on 1992 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: One method of radio-frequency heating which shows theoretical promise for both heating and current drive in tokamak plasmas is the direct absorption by electrons of the fast Alfven wave (FW). Electrons can directly absorb fast waves via electron Landau damping and transit-time magnetic pumping when the resonance condition [omega] - [kappa]{sub {parallel}e}[upsilon]{sup {parallel}e} = O is satisfied. Since the FW accelerates electrons traveling the same toroidal direction as the wave, plasma current can be generated non-inductively by launching FW which propagate in one toroidal direction. Fast wave current drive (FWCD) is considered an attractive means of sustaining the plasma current in reactor-grade tokamaks due to teh potentially high current drive efficiency achievable and excellent penetration of the wave power to the high temperature plasma core. Ongoing experiments on the DIII-D tokamak are aimed at a demonstration of FWCD in the ion cyclotron range of frequencies (ICRF). Using frequencies in the ICRF avoids the possibility of mode conversion between the fast and slow wave branches which characterized early tokamak FWCD experiments in the lower hybrid range of frequencies. Previously on DIII-D, efficient direct electron heating by FW was found using symmetric (non-current drive) antenna phasing. However, high FWCD efficiencies are not expected due to the relatively low electron temperatures (compared to a reactor) in DIII-D.
Book Synopsis Fast Wave Coupling and Heating of Reactor Type Tokamaks in the ICRF by : Hugo Adolfo Romero
Download or read book Fast Wave Coupling and Heating of Reactor Type Tokamaks in the ICRF written by Hugo Adolfo Romero and published by . This book was released on 1982 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ICRF Heating in Large Tokamaks by : J. Hosea
Download or read book ICRF Heating in Large Tokamaks written by J. Hosea and published by . This book was released on 1976 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report of the Ad Hoc Panel on Rf Heating in Tokamaks by : United States. Energy Research and Development Administration
Download or read book Report of the Ad Hoc Panel on Rf Heating in Tokamaks written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fusion Energy Update written by and published by . This book was released on 1980 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of Plasma Heating by Waves in the Ion-cyclotron Range of Frequencies by :
Download or read book Review of Plasma Heating by Waves in the Ion-cyclotron Range of Frequencies written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Three aspects of wave heating in the Ion-Cyclotron Range of Frequencies are reviewed. First, the many interesting physics phenomena are outlined which occur in this frequency regime and how they can be profitably utilized in tokamak and other heating experiments is indicated. Second, the key current theoretical problems are enumerated. Thirdly, how the ICRF program for the PLT tokamak can address most of the physics questions is shown.
Book Synopsis Fast-Wave Heating of a Reactor Plasma by : Thomas Howard Stix
Download or read book Fast-Wave Heating of a Reactor Plasma written by Thomas Howard Stix and published by . This book was released on with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling of ICRF Heating of a Tokamak Plasma by :
Download or read book Modeling of ICRF Heating of a Tokamak Plasma written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A model for wave propagation and absorption of the Ion Cyclotron Range of Frequencies (ICRF) has been constructed and fitted into the 1-D BALDUR transport code. The wave propagation is handled by ray tracing techniques. Wave absorption is calculated using the Fokker-Planck equation and quasilinear diffusion. The wave propagation and damping profiles are evolved in time according to the plasma evolution. A simulation of PLT hydrogen minority ICRF heating with a comparison to experimental data is given.
Book Synopsis A Ray Tracing Analysis of Fast Wave Heating of Tokamaks by : Brian David McVey
Download or read book A Ray Tracing Analysis of Fast Wave Heating of Tokamaks written by Brian David McVey and published by . This book was released on 1978 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Majority Ion Heating Near the Ion-ion Hybrid Layer in Tokamaks by : C. K. Phillips
Download or read book Majority Ion Heating Near the Ion-ion Hybrid Layer in Tokamaks written by C. K. Phillips and published by . This book was released on 1995 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ICRF Heating in Tokamaks by : Hironori Takahashi
Download or read book ICRF Heating in Tokamaks written by Hironori Takahashi and published by . This book was released on 1977 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Predictions of Fast Wave Heating, Current Drive, and Current Drive Antenna Arrays for Advanced Tokamaks by :
Download or read book Predictions of Fast Wave Heating, Current Drive, and Current Drive Antenna Arrays for Advanced Tokamaks written by and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the advanced tokamak program is to optimize plasma performance leading to a compact tokamak reactor through active, steady state control of the current profile using non-inductive current drive and profile control. To achieve these objectives requires compatibility and flexibility in the use of available heating and current drive systems--ion cyclotron radio frequency (ICRF), neutral beams, and lower hybrid. For any advanced tokamak, the following are important challenges to effective use of fast waves in various roles of direct electron heating, minority ion heating, and current drive: (1) to employ the heating and current drive systems to give self-consistent pressure and current profiles leading to the desired advanced tokamak operating modes; (2) to minimize absorption of the fast waves by parasitic resonances, which limit current drive; (3) to optimize and control the spectrum of fast waves launched by the antenna array for the required mix of simultaneous heating and current drive. The authors have addressed these issues using theoretical and computational tools developed at a number of institutions by benchmarking the computations against available experimental data and applying them to the specific case of TPX.
Book Synopsis ICRF Heating and Wave Generation in the ATC Tokamak. Part 1 by :
Download or read book ICRF Heating and Wave Generation in the ATC Tokamak. Part 1 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental results and their theoretical interpretations of rf heating experiments in the ion cyclotron range of frequencies are presented. The presentation is in two parts, with this part describing the experimental facilities and characteristics of fast compressional Alfven waves in the tokamak, and a subsequent paper which will deal with the pricipal heating results. It is shown that a simple coupling structure which consists essentially of a semi-circular metal strip and a pair of bumper limiters is sufficient to efficiently couple rf power to the plasma. The major part of the coupled power is radiated as the fast wave, and there is no evidence that parasitic loading, if any, accounts for a significant amount of the power. A coupling efficiency (net coupled power/incident power) in excess of 90% is routinely obtained.
Book Synopsis Ion Cyclotron Range of Frequencies Mode Conversion Electron Heating in Deuterium-hydrogen Plasmas in the Alcator C-Mod Tokamak by : Yijun Lin
Download or read book Ion Cyclotron Range of Frequencies Mode Conversion Electron Heating in Deuterium-hydrogen Plasmas in the Alcator C-Mod Tokamak written by Yijun Lin and published by . This book was released on 2003 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Localized direct electron heating by mode-converted ion cyclotron range of frequencies (ICRF) waves in D(H) tokamak plasmas has been clearly observed for the first time in Alcator C-Mod. Both on- and off-axis (high field side) mode conversion electron heating (MCEH) have been observed. The MCEH profile was obtained from a break in slope analysis of electron temperature signals in the presence of rf (radio frequency) shut-off. The temperature was measured by a 32-channel high spatial resolution (7 mm) 2nd harmonic heterodyne electron cyclotron emission (ECE) system. The experimental profiles were compared with the predictions from a toroidal full-wave ICRF code TORIC. Using the hydrogen concentration measured by a high-resolution optical spectrometer, TORIC predictions were shown qualitatively in agreement with the experimental results for both on- and off-axis MC cases. From the simulations, the electron heating from mode converted ion cyclotron wave (ICW) and ion Bernstein wave (IBW) is examined.
