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Continuum X Ray Emission From The Alcator A Tokamak
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Book Synopsis Continuum X-ray Emission from the Alcator A Tokamak by : John E. Rice
Download or read book Continuum X-ray Emission from the Alcator A Tokamak written by John E. Rice and published by . This book was released on 1981 with total page 54 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 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Limiter Hard X-ray Emission Studies During Lower Hybrid Current Drive Experiments on the Alcator C Tokamak by : Daniel S. Pappas
Download or read book Limiter Hard X-ray Emission Studies During Lower Hybrid Current Drive Experiments on the Alcator C Tokamak written by Daniel S. Pappas and published by . This book was released on 1984 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Internal Phenomena of the ATC Tokamak Observed Via X-Ray Emission by : R. R. Smith
Download or read book Internal Phenomena of the ATC Tokamak Observed Via X-Ray Emission written by R. R. Smith and published by . This book was released on 1974 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plasma Physics Index written by and published by . This book was released on 1982 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Documentation of Plasma Physics. Pt. 1, Experimental Plasma Physics [and] Theoretical Plasma Physics by :
Download or read book Documentation of Plasma Physics. Pt. 1, Experimental Plasma Physics [and] Theoretical Plasma Physics written by and published by . This book was released on 1981 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electron Ionization by : Tilmann D. Märk
Download or read book Electron Ionization written by Tilmann D. Märk and published by BoD – Books on Demand. This book was released on 2010 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soft X-ray Measurements in the Alcator C Tokamak by : Linda Meryl Stoloff
Download or read book Soft X-ray Measurements in the Alcator C Tokamak written by Linda Meryl Stoloff and published by . This book was released on 1981 with total page 58 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 1986 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beam Emission Spectroscopy on the Alcator C-Mod Tokamak by : Matthew Brian Sampsell
Download or read book Beam Emission Spectroscopy on the Alcator C-Mod Tokamak written by Matthew Brian Sampsell and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1987 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantification of Lower Hybrid Wave Absorption in the Edge of the Alcator C-Mod Tokamak by : Ian Charles Faust
Download or read book Quantification of Lower Hybrid Wave Absorption in the Edge of the Alcator C-Mod Tokamak written by Ian Charles Faust and published by . This book was released on 2016 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 1 MW Lower Hybrid Current drive (LHCD) radiofrequency system is used to replace inductive drive on the Alcator C-Mod tokamak. It was designed to test Advanced Tokamak (AT) scenarios for future steady-state diverted, high field tokamaks. However, at reactor-relevant densities (n̄e > 1 . 10 20 m-3), an anomalous current drive loss is observed. This loss, known as the LHCD density limit, occurs in diverted plasmas and is correlated with the plasma current and plasma density. Several mechanisms have been implicated in the loss of current drive, with both experimental and theoretical results suggesting edge power loss. Power modulation is a standard technique used for characterizing power sources and plasma power balance. In this case, the Lower Hybrid radiofrequency (LHRF) power is modulated in time in a set of plasmas across the density range from efficient to negligible current drive. This data is used to characterize the absorption of LHRF power through the calculation of the LHRF power balance within 15%, typical of power balance studies. This power balance is used to derive characteristics of the cause behind the LHCD density limit. The immediate nature of LHRF-induced conducted and radiated power losses confirm that LHRF power is absorbed in the edge plasma, even at the lowest densities. The edge losses increase to balance the reduced current drive, indicating that the observed power in the scrape-off-layer (SOL) limits the available power for current drive and the edge losses represent a parasitic mechanism. Unlike edge losses of other radiofrequency systems, this absorption occurs with a high degree of toroidal symmetry near the plasma separatrix. This indicates absorption occurs just inside the separatrix, or just outside the separatrix over multiple SOL traversals. Measurements of the poloidal distribution of ionization and recombination in the edge were made using a specially designed Ly[alpha] pinhole camera. It utilizes a MgF2 filter and AXUV diode array to measure Ly[alpha] emission from the lower to upper divertor. Edge deposited LHRF power was found to promptly ionize the active divertor plasma in all diverted topologies. This result highlights the power flow and importance of the divertor plasma in the LHCD density limit. Three independent characteristics indicate the thermal absorption of LHRF power. First, in- /out balance of radiated and conducted LHRF power change with the reversal of the tokamak magnetic fields. Second, comparisons of the conducted heat via Langmuir probes and IR thermography are similar with and without LHRF power. Lastly, the Langmuir probe ratio of Vf l/Te does not significantly modulate with modulated LHRF. A second experiment utilized a high strike-point diverted discharge to determine the edge loss of fast electrons. The high strike point could be observed using the hard X-ray camera, which can compare core and edge X-ray emission. The measured count rates from thick-target bremsstrahlung were interpreted into fast electron fluxes using the Win X-ray code. Theoretical treatments of the fast-electron confinement time were also calculated for Alcator C-Mod. In all cases the fast-electron edge losses are minimal and will be unimportant for future tokamaks due to the small fast electron diffusivity and their large size. The loss of current drive in high density diverted plasmas correlates with high edge plasma collisionality. The newly derived characteristics set stringent requirements in nk for electron Landau damping to cause the edge absorption of LHRF power. Several observed attributes, namely high frequency modulation and low density absorption do not correlate with Landau damping characteristics. However, parasitic collisional absorption in the divertor plasma yields the necessary plasma current, topology, symmetry, thermal, and ionization characteristics. High divertor plasma collisionality is expected if not required for future tokamaks. LHRF systems of future tokamaks must must avoid propagation through collisional regions, even on the first traversal through the SOL.
Book Synopsis An Experimental Study of Visible and Ultraviolet Impurity Emission from the Alcator C Tokamak by : Juan Carlos Moreno
Download or read book An Experimental Study of Visible and Ultraviolet Impurity Emission from the Alcator C Tokamak written by Juan Carlos Moreno and published by . This book was released on 1985 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Role of Radiation on the Power Balance of the Alcator C Tokamak by : Mark Manley Pickrell
Download or read book The Role of Radiation on the Power Balance of the Alcator C Tokamak written by Mark Manley Pickrell and published by . This book was released on 1982 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Resolution Visible Continuum Imaging Diagnostic on the Alcator C-Mod Tokamak by : Earl S. Marmar
Download or read book High Resolution Visible Continuum Imaging Diagnostic on the Alcator C-Mod Tokamak written by Earl S. Marmar and published by . This book was released on 2000 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spectral Measurements of Fluctuating [omega][subscript Pe] Radiation from Alcator C Tokamak by : Rex F. Gandy
Download or read book Spectral Measurements of Fluctuating [omega][subscript Pe] Radiation from Alcator C Tokamak written by Rex F. Gandy and published by . This book was released on 1984 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: