Wave propagation downstream of a high power helicon in a dipolelike magnetic field

Prager, James; Ziemba, Timothy; Winglee, Robert; Roberson, B. Race
January 2010
Physics of Plasmas;Jan2010, Vol. 17 Issue 1, p013504
Academic Journal
The wave propagating downstream of a high power helicon source in a diverging magnetic field was investigated experimentally. The magnetic field of the wave has been measured both axially and radially. The three-dimensional structure of the propagating wave is observed and its wavelength and phase velocity are determined. The measurements are compared to predictions from helicon theory and that of a freely propagating whistler wave. The implications of this work on the helicon as a thruster are also discussed.


Related Articles

  • Surface flute modes in a rippled magnetic field. Girka, V.; Girka, I. // Plasma Physics Reports;Sep2006, Vol. 32 Issue 9, p750 

    An analytic study is made of the propagation of an electromagnetic wave packet with a zero axial number of the fundamental harmonic in a cylindrical metal waveguide partially filled with a plasma placed in a rippled magnetic field. The fields of the waves are determined to second order in the...

  • Wave propagation and noncollisional heating in neutral loop and helicon discharges. Celik, Y.; Crintea, D. L.; Luggenhölscher, D.; Czarnetzki, U.; Ishijima, T.; Sugai, H. // Physics of Plasmas;Feb2011, Vol. 18 Issue 2, p022107 

    Heating mechanisms in two types of magnetized low pressure rf (13.56 MHz) discharges are investigated: a helicon discharge and a neutral loop discharge. Radial B-dot probe measurements demonstrate that the neutral loop discharge is sustained by helicon waves as well. Axial B-dot probe...

  • Nonlinear effects in propagation of radio waves in metals (Review Article). Skobov, V. G.; Chernov, A. S. // Low Temperature Physics;Nov2011, Vol. 37 Issue 11, p903 

    The main results of works on study of influence of nonlinearity on propagation of radio waves through metals placed in a constant magnetic field are described. The trapping of carriers by the magnetic field of a wave with a large amplitude leads to suppression of collisionless absorption and to...

  • Anomalous Absorption of Radio Waves by Small-Scale Magnetic-Field-Aligned Irregularities. Vas’kov, V.; Ryabova, N. // Radiophysics & Quantum Electronics;Mar2005, Vol. 48 Issue 3, p161 

    We study the anomalous absorption of radio waves by small-scale magnetic-field-aligned artificial irregularities taking into account the effect of such irregularities on the propagation of the excited Z -mode. It is shown that this process becomes significant if the transverse size of...

  • Digital signal propagation is dispersive media. Jordan, P. M.; Puri, Ashok // Journal of Applied Physics;2/1/1999, Vol. 85 Issue 3, p1273 

    Presents information on a study which examined the propagation of electromagnetic waves in media which are both conducting and dispersive using the one-dimensional telegraph equation. Model system; Numerical results; Physical applications; Discussions and conclusions.

  • Study of Density Peaking in a Diverging Magnetic Field Helicon Experiment. Chattopadhyay, P. K.; Barada, Kshitish K.; Ghosh, J.; Sharma, Devendra; Saxena, Y. C. // AIP Conference Proceedings;2014, Vol. 1582, p251 

    Density peaking phenomena have been studied in different magnetic field configurations in a low field (< 100 Gauss) helicon discharge. The study has been carried out in the linear helicon plasma device (Barada et. al., Rev. Sci. Instrum. 83, 063501, 2012) using argon gas with m = +1 right...

  • Beam matching in pasotrons. Bliokh, Yu P.; Nusinovich, G.S.; Felsteiner, J.; Granatstein, V.L. // AIP Conference Proceedings;2003, Vol. 691 Issue 1, p368 

    Electron beams propagating in the ion focused regime (Bennett pinch) are of interest for various sources of coherent electromagnetic radiation (pasotrons, ion-channel lasers, ion-channel guided free-electron lasers). The transition of a beam from a quasi-laminar state near the gun to a...

  • Effects of carrier and dispersion on propagation of a directed electromagnetic pulse. Hafizi, B. // Journal of Applied Physics;1/15/1993, Vol. 73 Issue 2, p513 

    Presents a study which investigated the propagation of a directed pulse of electromagnetic radiation in a vacuum and in a rarefield, temporally dispersive medium. Vector potential in dispersive medium; Propagation in a vacuum; Conclusions.

  • Anomalous magnetoelastic waves in nickel wire. Liu, Yuan; Viens, M.; Cheeke, J. D. N.; Jen, C. K. // Journal of Applied Physics;3/1/1993, Vol. 73 Issue 5, p2584 

    Presents a study which examined anomalous magnetoelastic waves in nickel wire. Demonstration of the anomalous propagation; Illustration of wave packets of positive and negative phase velocities; Phase and group delay changes due to transmitter motion.


Read the Article


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

Try another library?
Sign out of this library

Other Topics