933 research outputs found
Plasma Physics Reports V. 29, I. 07
No full textPlasma Physics Reports -- July 2003
Volume 29, Issue 7, pp. 539-634
TOKAMAKS
Integrated Predictive Modeling of JET H-mode Plasma with Type-I and Type-III ELMs
V. Parail et al. (JET-EFDA contributors)
pp. 539-544 Full Text: PDF (146 kB)
NONLINEAR PHENOMENA
The DNLS Equation and Parametric Decay Instability
V. I. Shevchenko, R. Z. Sagdeev, V. L. Galinsky, and M. V. Medvedev
pp. 545-549 Full Text: PDF (77 kB)
Excitation of Inertial Alfvén Waves Via Modulational Interaction with Lower Hybrid Waves
V. D. Shapiro, D. Üçer, and K. B. Quest
pp. 550-560 Full Text: PDF (191 kB)
On the Efficiency of ELF/VLF Generation Using HF Heating of the Auroral Electrojet
K. Papadopoulos, T. Wallace, M. McCarrick, G. M. Milikh, and X. Yang
pp. 561-565 Full Text: PDF (78 kB)
A Hall Dynamo Effect Driven by Two-Fluid Tearing Instability
V. V. Mirnov, C. C. Hegna, and S. C. Prager
pp. 566-570 Full Text: PDF (87 kB)
PLASMA DYNAMICS
Review of Experimental Studies of the Dynamics of Light Liners at the Russian Research Centre Kurchatov Institute
Yu. G. Kalinin
pp. 571-585 Full Text: PDF (503 kB)
Energy Transfer to a Wire from a Surrounding Joule-Heated Corona
M. G. Haines
pp. 586-592 Full Text: PDF (90 kB)
Electron Response in Laser-Irradiated Microclusters
B. N. Breizman and A. V. Arefiev
pp. 593-597 Full Text: PDF (117 kB)
TRANSPORT PROCESSES
Theory of the Anomalous Resistivity of a Randomly Inhomogeneous Plasma
A. S. Kingsep
pp. 598-604 Full Text: PDF (90 kB)
PLASMA INSTABILITY
A Phenomenological Model of the Current Filamentation Instability Driven by Cathode Processes in the Livermore Spheromak
D. D. Ryutov, R. H. Cohen, and D. N. Hill
pp. 605-617 Full Text: PDF (436 kB)
HIGH-CURRENT BEAMS
Obtaining High Pressures and Metastable States in Condensed Media by Using High-Current Relativistic Electron Beams
B. A. Demidov
pp. 618-625 Full Text: PDF (320 kB)
FIELD REVERSED CONFIGURATION
Classical Transport in a Field Reversed Configuration
N. Rostoker and A. Qerushi
pp. 626-630 Full Text: PDF (172 kB)
BRIEF COMMUNICATIONS
Concerning Arc Discharge in a Transverse Magnetic Field
A. V. Zharinov
pp. 631-634 Full Text: PDF (49 kB)Archived web conten
Plasma Physics Reports V. 29, I. 07
No full textleave(s) : ill; 28 cm.Plasma Physics Reports -- July 2003
Volume 29, Issue 7, pp. 539-634
TOKAMAKS
Integrated Predictive Modeling of JET H-mode Plasma with Type-I and Type-III ELMs
V. Parail et al. (JET-EFDA contributors)
pp. 539-544 Full Text: PDF (146 kB)
NONLINEAR PHENOMENA
The DNLS Equation and Parametric Decay Instability
V. I. Shevchenko, R. Z. Sagdeev, V. L. Galinsky, and M. V. Medvedev
pp. 545-549 Full Text: PDF (77 kB)
Excitation of Inertial Alfv�n Waves Via Modulational Interaction with Lower Hybrid Waves
V. D. Shapiro, D. ���_er, and K. B. Quest
pp. 550-560 Full Text: PDF (191 kB)
On the Efficiency of ELF/VLF Generation Using HF Heating of the Auroral Electrojet
K. Papadopoulos, T. Wallace, M. McCarrick, G. M. Milikh, and X. Yang
pp. 561-565 Full Text: PDF (78 kB)
A Hall Dynamo Effect Driven by Two-Fluid Tearing Instability
V. V. Mirnov, C. C. Hegna, and S. C. Prager
pp. 566-570 Full Text: PDF (87 kB)
PLASMA DYNAMICS
Review of Experimental Studies of the Dynamics of Light Liners at the Russian Research Centre Kurchatov Institute
Yu. G. Kalinin
pp. 571-585 Full Text: PDF (503 kB)
Energy Transfer to a Wire from a Surrounding Joule-Heated Corona
M. G. Haines
pp. 586-592 Full Text: PDF (90 kB)
Electron Response in Laser-Irradiated Microclusters
B. N. Breizman and A. V. Arefiev
pp. 593-597 Full Text: PDF (117 kB)
TRANSPORT PROCESSES
Theory of the Anomalous Resistivity of a Randomly Inhomogeneous Plasma
A. S. Kingsep
pp. 598-604 Full Text: PDF (90 kB)
PLASMA INSTABILITY
A Phenomenological Model of the Current Filamentation Instability Driven by Cathode Processes in the Livermore Spheromak
D. D. Ryutov, R. H. Cohen, and D. N. Hill
pp. 605-617 Full Text: PDF (436 kB)
HIGH-CURRENT BEAMS
Obtaining High Pressures and Metastable States in Condensed Media by Using High-Current Relativistic Electron Beams
B. A. Demidov
pp. 618-625 Full Text: PDF (320 kB)
FIELD REVERSED CONFIGURATION
Classical Transport in a Field Reversed Configuration
N. Rostoker and A. Qerushi
pp. 626-630 Full Text: PDF (172 kB)
BRIEF COMMUNICATIONS
Concerning Arc Discharge in a Transverse Magnetic Field
A. V. Zharinov
pp. 631-634 Full Text: PDF (49 kB)The content contained herein is maintained and curated by the Preservation Department.This record is revised and maintained by the content administrators from the Cataloging & Metadata Department
Impact of ITER PF coils power supplies and central solenoid design changes on plasma operation
No full textAs the ITER project moves forward in the procurement phase of major components, the baseline design is subject to a series of modifications due to the finalization of the design and interaction with industry. Some modifications have a potential impact on the performance and operation of the machine. A substantial activity is being carried out in EU in support to the design, aimed at assessing such impact. The effect of the 2010 design of the central solenoid on the operational space was assessed. A detailed analysis of the plasma breakdown and start-up phases was performed to assess the impact of withdrawing the booster converters from the baseline design and of the modifications to the power supply voltage ratings. In order to reach a clear conclusion, a review of the start-up strategy was also carried out starting from an analysis of the avalanche and breakdown conditions in ITER. The controllability of the null quality and position was verified in presence of uncertainties and measurement errors. The advantages of higher voltage rating were also quantified. General aim of the paper is to present an overview of the analyses performed and of the issues identified providing an assessment of the impact of some of the proposed changes on ITER operation. © 2011 European Joint Undertaking for ITER and the Development of Fusion for Energy
Impact of ITER PF coils power supplies and central solenoid design changes on plasma operation
No full textAs the ITER project moves forward in the procurement phase of major components, the baseline design is subject to a series of modifications due to the finalization of the design and interaction with industry. Some modifications have a potential impact on the performance and operation of the machine. A substantial activity is being carried out in EU in support to the design, aimed at assessing such impact. The effect of the 2010 design of the central solenoid on the operational space was assessed. A detailed analysis of the plasma breakdown and start-up phases was performed to assess the impact of withdrawing the booster converters from the baseline design and of the modifications to the power supply voltage ratings. In order to reach a clear conclusion, a review of the start-up strategy was also carried out starting from an analysis of the avalanche and breakdown conditions in ITER. The controllability of the null quality and position was verified in presence of uncertainties and measurement errors. The advantages of higher voltage rating were also quantified. General aim of the paper is to present an overview of the analyses performed and of the issues identified providing an assessment of the impact of some of the proposed changes on ITER operation. © 2011 European Joint Undertaking for ITER and the Development of Fusion for Energy. Published by Elsevier B.V. All rights reserved
Merchant interconnector projects by generators in the EU: Effects on profitability and allocation of capacity
No full textWhen building a cross-border transmission line (a so-called interconnector) as a for-profit (merchant) project, where the regulator has required that capacity allocation be done non-discriminatorily by explicit auction, the identity of the investor can affect the profitability of the interconnector project and, once operational, the resulting allocation of its capacity. Specifically, when the investor is a generator (hereafter the integrated generator) who also can use the interconnector to export its electricity to a distant location, then, once operational, the integrated generator will bid more aggressively in the allocation auctions to increase the auction revenue and thus its profits. As a result, the integrated generator is more likely to win the auction and the capacity is sold for a higher price. This lowers the allocative efficiency of the auction, but it increases the expected ex-ante profitability of the merchant interconnector project. Unaffiliated, independent generators, however, are less likely to win the auction and, in any case, pay a higher price, which dramatically lowers their revenues from exporting electricity over this interconnector.electricity markets; regulation; cross-border electricity transmissions; vertical integration; asymmetric auctions; bidding behavior
A General Empirically Based Micro-Instability Transport Model
No full textA mixed Bohm--gyro-Bohm, shear-dependent thermal diffusion coefficient to model the anomalous thermal transport in tokamaks is proposed. It is derived on the basis of recent findings on the radial correlation length of turbulent processes generated by small scale, collisionless, electrostatic microinstabilities (ROMANELLI, F., ZONCA, F., Phys. Fluids B, 5 (1993) 4081). The model has been used to describe standard L and H-mode discharges of the JET, DIII-D and TFTR devices and JET PEP and hot ion mode discharges successfully. 1 Introduction The energy and particle transport in tokamaks is determined by turbulent processes. At present no definitive transport model (that is, a closed expression for energy and particle fluxes in terms of plasma parameters) which fully accounts for all the features of turbulence is available, in spite of the effort produced in recent years in order to determine the anomalous fluxes from first-principle plasma models [1, 2, 3, 4, 5]. Nevertheless, there is ..
Can Merchant Interconnectors Deliver Lower and More Stable Prices? The Case of NorNed
No full textThis paper estimates the effect of the merchant interconnector between Norway and the Netherlands on the level and residual volatility of hourly day-ahead electricity prices in the two connected markets. The price effects are estimated using single equation ARMA models and the volatility effects are estimated using EGARCH models with multiplicative heteroskdasticity. Both the level and volatility effects on prices are found to be modest. This result implies that the majority of welfare gains resulting from trade across the interconnector are likely to be accrued to its owners, undermining the practical validity of the theoretical argument that lumpiness in transmission investment leads to a divergence between social and private benefits of transmission investment. This paper finds that, on the scale of NorNed, there is little evidence to suggest that transmission capacity between different markets cannot be provided competitively.merchant interconnectors, electricity prices, price volatility, time series, egarch
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