Double layer created by electron cyclotron resonance heating in an inhomogeneously magnetized plasma with high-speed ion flow

Takahashi, K.; Kaneko, T.; Hatakeyama, R.
July 2008
Physics of Plasmas;Jul2008, Vol. 15 Issue 7, p072108
Academic Journal
A potential jump, i.e., an electric double layer (DL) is formed near an electron cyclotron resonance (ECR) point when an electron cyclotron wave is injected into an inhomogeneously magnetized plasma with high-speed ion flow. A charge separation is caused by an electron reflection due to -μ∇Bz force enhanced by ECR heating and ion inertia. It is clearly demonstrated in the experiment that the potential height of the DL is almost proportional to the field-aligned ion flow energy; the DL is found to be self-consistently formed for maintaining charge neutrality by reflecting a part of the flowing ions.


Related Articles

  • Induced resonance electron cyclotron quasi-optical maser in an open resonator. Sprangle, P.; Tang, C. M.; Serafim, P. // Applied Physics Letters;11/3/1986, Vol. 49 Issue 18, p1154 

    In this letter we analyze an induced resonance electron cyclotron (IREC) quasi-optical maser configuration, which has the unique features of being highly efficient and, with the proper choice for the index of refraction, relatively insensitive to the electron beam’s energy spread. The...

  • Electron-beam extraction system for the Frankfurt 14 GHz electron cyclotron resonance ion source. Runkel, S.; Stiebing, K. E.; Schmidt-Bocking, H.; Schempp, A.; Becker, R.; Schmidt, L.; Hohn, O. // Review of Scientific Instruments;Feb1998, Vol. 69 Issue 2, p721 

    Discusses the use of electron beam injection into ion-source plasma. Effect of the beam on a electron cyclotron resonance ion source.

  • Spatial distributions of electron temperature and density in electron cyclotron resonance... Cronrath, W.; Bowden, M.D. // Journal of Applied Physics;3/1/1997, Vol. 81 Issue 5, p2105 

    Examines the spatial distributions of electron temperature and density in electron cyclotron resonance discharges. Locations of the electron cyclotron resonance zones; Simulation results from a hybrid code; Large difference of radial electron density profiles.

  • Monte Carlo simulations of argon ion transport in the downstream region of electron cyclotron... Zhong, X.X.; Wu, J.D.; Wu, C.Z.; Li, F.M. // Journal of Applied Physics;5/15/1998, Vol. 83 Issue 10, p5069 

    Provides information on the description of the ion dynamics in the downstream region of electron cyclotron resonance (ECR) argon plasma with the gas pressure ranging from 0.01 Pa to 0.1 Pa. Indepth look at the Monte Carlo method; Detailed information on the assumptions and governing equations;...

  • Development of electron beam ion source charge breeder for rare isotopes at Californium Rare Isotope Breeder Upgrade. Kondrashev, S.; Dickerson, C.; Levand, A.; Ostroumov, P. N.; Pardo, R. C.; Savard, G.; Vondrasek, R.; Alessi, J.; Beebe, E.; Pikin, A.; Kuznetsov, G. I.; Batazova, M. A. // Review of Scientific Instruments;Feb2012, Vol. 83 Issue 2, p02A902 

    Recently, the Californium Rare Isotope Breeder Upgrade (CARIBU) to the Argonne Tandem Linac Accelerator System (ATLAS) was commissioned and became available for production of rare isotopes. Currently, an electron cyclotron resonance ion source is used as a charge breeder for CARIBU beams. To...

  • Generation of dense multicharged ion flows from an ECR plasma confined in a quasi-gas-dynamic magnetic cusp trap. Bokhanov, A. F.; Zorin, V. G.; Izotov, I. V.; Razin, S. V.; Sidorov, A. V.; Skalyga, V. A. // Plasma Physics Reports;May2007, Vol. 33 Issue 5, p347 

    The possibility of generating dense multicharged ion beams with a current density as high as ∼1 A/cm2 from an ECR plasma confined in a quasi-gas-dynamic cusp trap is studied both theoretically and experimentally. The most important advantages of this type of ion source are that the plasma...

  • Stabilization of neoclassical tearing modes by electron cyclotron current drive. Zohm, Hartmut // Physics of Plasmas;Sep97, Vol. 4 Issue 9, p3433 

    Studies stabilization of neoclassical tearing modes by electron cyclotron current drive. Analytical expressions for the nonlinear stability criterion; Formalism for calculating the current.

  • Transient nonthermal electron cyclotron emission phenomena in high Beta TFTR plasmas. Taylor, G.; Fredrickson, E.; Janos, A. // Review of Scientific Instruments;Jan1995, Vol. 66 Issue 1, p830 

    Measures bursts of nonthermal electron cyclotron emission (ECE) with a grating polychromator. Observations of how the measurement coincides with edge localized modes in TFTR H-mode plasmas; Bursts containing random 10-150 emission spikes.

  • Wave-induced chaotic radial transport of energetic electrons in a laboratory terrella experiment. Warren, H.P.; Mauel, M.E. // Physics of Plasmas;Nov95, Vol. 2 Issue 11, p4185 

    Reports the observation of wave-induced chaotic radial transport of energetic electrons in the Collisionless Terrella Experiment. Creation of a localized population of energetic electrons using electron cyclotron resonance heating; Increases in the flux of energetic particles to the detector.


Read the Article


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

Try another library?
Sign out of this library

Other Topics