Download or read book Lower Hybrid Heating Current Drive Experiments on the Alcator C and Versator II Tokamaks written by Miklos Porkolab and published by . This book was released on 1982 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lower Hybrid Heating and Current Drive and Ion Cyclotron Heating Experiments on the Alcator C and the Versator II Tokamaks written by Alcator Group and published by . This book was released on 1984 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lower Hybrid Current Drive Experiments on the Alcator C and the Versator II Tokamaks written by Alcator C Group and published by . This book was released on 1983 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lower Hybrid Heating Experiments on the Alcator C and the Versator II Tokamaks written by Alcator C Group and published by . This book was released on 1982 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lower Hybrid Current Drive Experiments on the MIT Alcator C and Versator II Tokamaks written by Alcator C Group and published by . This book was released on 1985 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lower hybrid heating Experiments on the Alcator C and the Versator II Tokamaks written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Initial results are reported from lower hybrid wave heating experiments carried out on the MIT Alcator C and Versator II tokamaks. In the Alcator C experiments a 4 waveguide array, with internally brazed ceramic windows has been used to inject 160 kW of microwave power at 4.6 GHz into the plasma with n0 less than or equal to 1 x 1015 cm−3, and B0 less than or equal to 12 T. An RF power density of 8 kW/cm2 has been transmitted into the plasma without RF breakdown. RF coupling studies show optimal coupling (R less than or equal to 10%) when the local density at the waveguide mouth is 25 to 50 times overdense. Initial heating experiments show an ion tail formation in hydrogen discharge peaking at a density of anti n approx. = 2.7 x 1014 cm−3 at B = 8.9 T, and bulk ion heating at a density of anti n approx. = 1.5 x 1014 c−3 at B approx. = 11 T. Evidence of RF current enhancement has been observed at a density of n approx. = 3 x 1013 cm−3. In the Versator II tokamak initial ion heating studies have been carried out using an 800 MHz, 140 kW klystron. With 50 kW of net RF power injected through a 4 waveguide grill at B = 1.3 T and anti n = 2.5 x 1013 cm−3, Doppler broadening of the OVII and NVI lines shows a .delta.T/sub i/ = 50 eV rise in the bulk ion temperature. A significant RF produced ion tail is also observed by charge exchange analysis. We have succeeded in combining a toroidal ray-tracing code and a 1-D transport code to study the heating density bands and heating efficiencies.
Download or read book Lower Hybrid Rf Heating Experiments in the MIT Alcator A C and Versator II Tokamaks written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental results on lower hybrid heating in the Alcator A and the Versator II tokamaks with power levels up to 90 kW are presented. In Alcator A a double waveguide grill, and in Versator II a 4 waveguide grill with arbitrary phasing are used. Also, a 6 waveguide grill experiment in Versator II is described which launches a travelling wave aimed at driving toroidal currents. The forthcoming lower hybrid heating experiment in Alcator C, utilizing four 4 x 4 waveguide arrays with power levels up to 4 MW, is also described.
Download or read book RF Heating and Current Drive Experiments on the Alcator C and Versator II Tokamaks written by Miklos Porkolab and published by . This book was released on 1986 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lower hybrid Heating Experiments on the Versator II Tokamak written by S. F. Knowlton and published by . This book was released on 1983 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lower hybrid RF Current Drive and Electron Cyclotron Heating on the Versator II Tokamak written by S. C. Luckhardt and published by . This book was released on 1982 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Study of Lower Hybrid Current Drive on the Versator II Tokamak written by Matthew James Mayberry and published by . This book was released on 1986 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lower hybrid Heating Experiments on the Versator II Tokamak written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: By Stephen Fuller Knowlton.
Download or read book Lower Hybrid Fast Wave Current Drive Experiments on the Versator II Tokamak written by Jesus Noel Samonte Villaseñor and published by . This book was released on 1993 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current drive and Plasma formation Experiments on the Versator II Tokamak Using Lower hybrid and Electron cyclotron Waves written by Jeffrey Alan Colborn and published by . This book was released on 1992 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Modelling of Lower Hybrid RF Heating and Current Drive Experiments in the Alcator C Tokamak written by P. T. Bonoli and published by . This book was released on 1987 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lower Hybrid Heating and Current Drive on the Alcator C Mod Tokamak written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: On the Alcator C-Mod tokamak, lower hybrid current drive (LHCD) is being used to modify the current profile with the aim of obtaining advanced tokamak (AT) performance in plasmas with parameters similar to those that would be required on ITER. To date, power levels in excess of 1 MW at a frequency of 4.6 GHz have been coupled into a variety of plasmas. Experiments have established that LHCD on C-Mod behaves globally as predicted by theory. Bulk current drive efficiencies, n20IlhR/Plh ~ 0.25, inferred from magnetics and MSE are in line with theory. Quantitative comparisons between local measurements, MSE, ECE and hard x-ray bremsstrahlung, and theory/simulation using the GENRAY, TORIC-LH CQL3D and TSC-LSC codes have been performed. These comparisons have demonstrated the off-axis localization of the current drive, its magnitude and location dependence on the launched n.
Download or read book Particle Confinement During Lower hybrid Current Drive in the Versator II Tokamak written by K.-I. Chen and published by . This book was released on 1984 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
