TITLE

Power balance in a high-density field reversed configuration plasma

AUTHOR(S)
Renneke, R. M.; Intrator, T. P.; Hsu, S. C.; Wurden, G. A.; Waganaar, W. J.; Ruden, E. L.; Grabowski, T. C.
PUB. DATE
June 2008
SOURCE
Physics of Plasmas;Jun2008, Vol. 15 Issue 6, p062502
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A global power balance analysis has been performed for the Field Reversed Experiment with Liner high density (>5×1022 m-3) field reversed configuration (FRC) plasma. The analysis was based on a zero-dimensional power balance model [D. J. Rey and M. Tuszewski, Phys. Fluids 27, 1514 (1984)]. The key findings are as follows. First, the percentage of radiative losses relative to total loss is an order of magnitude lower than previous lower density FRC experiments. Second, Ohmic heating was found to correlate with the poloidal flux trapping at FRC formation, suggesting that poloidal flux dissipation is primarily responsible for plasma heating. Third, high density FRCs analyzed in this work reinforce the low-density adiabatic scaling, which shows that particle confinement time and flux confinement time are approximately equal.
ACCESSION #
32970367

 

Related Articles

  • The new phase of the Joint European Torus and prospects for future operation. Tubbing, B.J.D. // Physics of Plasmas;Jun95, Vol. 2 Issue 6, p2256 

    Examines prospects for future operation of the Joint European Torus. Main elements of the pumped divertor configuration; Improvement of the heat load capability of the divertor; Occurrence of edge localized modes; Maximum plasma currents that have been obtained; Establishment of detached...

  • ICRF Heating in Magnetic Mirror Plasmas. Ichimura, M.; Higaki, H.; Saosaki, S.; Kano, H.; Kakimoto, S.; Tokumoto, K.; Yamaguchi, Y.; Hojo, H.; Inutake, M.; Yatsu, K. // Plasma Physics Reports;Sep2002, Vol. 28 Issue 9, p727 

    Waves in the ion cyclotron range of frequency are efficiently used to produce and heat magnetic mirror plasmas. In relatively low-density (lower than 10[sup 18]m[sup �3]) plasmas, the fast Alfv�n eigenmodes are formed in radial and axial directions and the excitation of these modes is...

  • Low-resistance and nonalloyed ohmic contacts to plasma treated ZnO. Lee, Ji-Myon; Kim, Kyoung-Kook; Park, Seong-Ju; Choi, Won-Kook // Applied Physics Letters;6/11/2001, Vol. 78 Issue 24, p3842 

    Low-resistance and nonalloyed ohmic contacts to epitaxially grown n-ZnO were formed by exposing n-ZnO to an inductively coupled hydrogen and an argon plasma. Using Ti/Au, the specific contact resistivity of the ohmic contact was drastically decreased from 7.3x10[sup -3] to 4.3x10[sup -5] Ω...

  • Influence of impurities on the plasma parameters and stability of a field-reversed configuration. König, R.; Kolk, K.-H.; Kunze, H.-J. // Physics of Fluids (00319171);Nov87, Vol. 30 Issue 11, p3579 

    Atoms of solid elements were injected into a theta-pinch discharge from both coil ends shortly before the start of the preionization discharge by a ruby-laser driven ablation from solid targets. The ablation process itself and the subsequent distribution of the impurities during the different...

  • Radiative properties of puffed-gas mixtures: The case of optically thick plasmas composed of two elements with similar atomic numbers. Apruzese, J. P.; Davis, J. // Journal of Applied Physics;5/1/1985, Vol. 57 Issue 9, p4349 

    Presents a study that examined the radiative properties of puffed-gas mixtures using optically thick plasmas composed of two elements with similar atomic numbers. Categories of optically thick plasmas; Analysis of the transfer of line photons in laboratory plasmas; Technique for increasing the...

  • Radiative cooling instabilities in the low dense plasma corona of laser-irradiated solid targets. Dhareshwar, L. J.; Naik, P. A.; Sarkar, Susmita; Khan, Manoranjan; Chakraborty, B. // Physics of Fluids B: Plasma Physics;Jun92, Vol. 4 Issue 6, p1635 

    Plasma jets produced from targets with atomic numbers ranging from 5 to 82 have been investigated in detail. Theoretical modeling based on a radiative cooling instability has been used to successfully explain the experimental results. Optical shadowgrams and x-ray pinhole pictures strongly...

  • Vlasov description of implosion heating. Agren, Olov // Physics of Plasmas;Oct96, Vol. 3 Issue 10, p3636 

    Presents an analytical treatment of plasma heating by a fast compression of a solenoidal field. Annular cylindrical plasma considered for the initial state; Optimization of nonadiabatic heating; Increases in the plasma beta; Calculated number of ions per unit length that gives tolerable...

  • Dynamic response of detached recombining plasmas to plasma heat pulse in a divertor simulator. Ohno, N.; Tanaka, M.; Ezumi, N.; Nishijima, D.; Takamura, S.; Krasheninnikov, S.I.; Pigarov, A.Yu.; Park, J. // Physics of Plasmas;Jun99, Vol. 6 Issue 6, p2486 

    Investigates the dynamic response of detached recombining helium plasmas to plasma heat pulse in a divertor simulator. Time evolution of plasma parameters and helium Balmer series spectra; Influence of the heat transport through energetic electrons generated by the heat pulse; Increase of ion...

  • Spatially resolved plasma rotation profiles with ICRF on JET. Noterdaeme, J.-M.; Righi, E.; deGrassie, J.; Chan, V.; Kirov, K.; Lamalle, Ph.; Meo, F.; Nave, M. F. F.; Zastrow, K.-D. // AIP Conference Proceedings;2001, Vol. 595 Issue 1, p98 

    Detailed measurements of the rotation profile in L-mode plasmas heated by ICRF only (H minority in D), show a distinct off-axis maximum in the co-current direction. There is a slight dependence on the position of the resonance layer: the off-axis maximum in the rotation profile is modestly...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics