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Physics of Plasmas / Volume 18 / Issue 5 / PAPERS FROM THE 52ND ANNUAL MEETING OF THE APS DIVISION OF PLASMA PHYSICS / INVITED PAPERS / Magnetically Confined Plasmas, Heating, Confinement

Phys. Plasmas 18, 056110 (2011); http://dx.doi.org/10.1063/1.3574380 (10 pages)

Formation of a long-lived hot field reversed configuration by dynamically merging two colliding high-β compact toroids a

a Paper DI3 1, Bull. Am. Phys. Soc. 55, 104 (2010).
H. Y. Guo1, M. W. Binderbauer1, D. Barnes1, S. Putvinski1, N. Rostoker1, L. Sevier1, M. Tuszewski1, M. G. Anderson1, R. Andow1, L. Bonelli1, F. Brandi2, R. Brown1, D. Q. Bui1, V. Bystritskii1, F. Ceccherini1,2, R. Clary1, A. H. Cheung1, K. D. Conroy1, B. H. Deng1, S. A. Dettrick1, J. D. Douglass1, P. Feng1, L. Galeotti1,2, E. Garate1, F. Giammanco2, F. J. Glass1, O. Gornostaeva1, H. Gota1, D. Gupta1, S. Gupta1, J. S. Kinley1, K. Knapp1, S. Korepanov1, M. Hollins1, I. Isakov1, V. A. Jose1, X. L. Li1, Y. Luo1, P. Marsili3, R. Mendoza1, M. Meekins1, Y. Mok1, A. Necas1, E. Paganini1, F. Pegoraro2, R. Pousa-Hijos1, S. Primavera1, E. Ruskov1, A. Qerushi1, L. Schmitz3, J. H. Schroeder1, A. Sibley1, A. Smirnov1, Y. Song1, L. C. Steinhauer4, X. Sun1, M. C. Thompson1, A. D. Van Drie1, J. K. Walters1, M. D. Wyman1, and TAE Team1

1Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
2Department of Physics, University of Pisa, Largo B. Pontecorvo 3, 56127 Pisa, Italy
3Department of Physics and Astronomy, UCLA, Los Angeles, California 90095-1547, USA
4Redmond Plasma Physics Laboratory, University of Washington, Redmond, Washington 98052, USA

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(Received 19 November 2010; accepted 7 February 2011; published online 2 May 2011)

A high temperature field reversed configuration (FRC) has been produced in the newly built, world’s largest compact toroid (CT) facility, C-2, by colliding and merging two high-β CTs produced using the advanced field-reversed θ-pinch technology. This long-lived, stable merged state exhibits the following key properties: (1) apparent increase in the poloidal flux from the first pass to the final merged state, (2) significantly improved confinement compared to conventional θ-pinch FRCs with flux decay rates approaching classical values in some cases, (3) strong conversion from kinetic energy into thermal energy with total temperature (Te + Ti) exceeding 0.5 keV, predominantly into the ion channel. Detailed modeling using a new 2-D resistive magnetohydrodynamic (MHD) code, LamyRidge, has demonstrated, for the first time, the formation, translation, and merging/reconnection dynamics of such extremely high-β plasmas.

© 2011 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. C-2 FACILITY
  3. DYNAMICS OF FRC MERGING
  4. POLOIDAL FLUX INCREAE AND RETHERMALIZATION DURING MERGING
  5. STABILITY
  6. CONFINEMENT AND TRANSPORT
  7. SUMMARY AND CONCLUSIONS

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KEYWORDS and PACS

Keywords

magnetic reconnection, plasma collision processes, plasma magnetohydrodynamics, plasma simulation, plasma temperature, plasma transport processes, reversed field pinch

PACS

  • 52.55.Ez

    Theta pinch

  • 52.25.Fi

    Transport properties

  • 52.65.Kj

    Magnetohydrodynamic and fluid equation

  • 52.30.Cv

    Magnetohydrodynamics (including electron magnetohydrodynamics)

  • 52.20.Hv

    Atomic, molecular, ion, and heavy-particle collisions

  • 52.35.Vd

    Magnetic reconnection

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3574380

PUBLICATION DATA

ISSN

1070-664X (print)  
1089-7674 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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