Transient response from a small antenna in an anisotropic plasma

Simonutti, Mario D.

doi:10.1063/1.861514

Cited by 12 publications

(2 citation statements)

References 3 publications

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“…Investigation in the time domain 34,35 might also improve understanding of SAEs. The concept of a CW resonance cone underlies the discussion of Sec.…”

Section: Rf Charging Of Spacecraft and Transient Effectsmentioning

confidence: 99%

OEDIPUS-C observations of electrons accelerated by radio frequency fields at whistler-mode frequencies

et al. 1999

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Simultaneous measurements of transmitted 500 kHz electric fields and of electron fluxes nonlinearly energized by those fields were made during the ionospheric flight of the rocket double payload OEDIPUS C. Given the local plasma parameters, 500 kHz corresponded to the whistler mode of cold-plasma propagation. As the separation between each payload end increased from 153 to 537 m, enhanced electron fluxes were detected at energies up to 20 keV, at the receiver end of the tether. Rf (radio frequency) electric fields created by the OEDIPUS-C transmitter have been computed for positions close to the whistler-mode group resonance cone and also for locations very close to the active dipoles. Test-particle trajectory tracings show that linear acceleration can account for the energy increases of electrons with starting energies up to about 100 eV. Neither resonant field-particle interactions of background energetic electrons nor strong turbulence of the background thermal particles explain the creation of sounder-accelerated electrons at 1–10 keV. The calculated magnitudes of the very near potentials, up to 550 V, point to acceleration by intense fields in the rf sheath region.

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“…Investigation in the time domain 34,35 might also improve understanding of SAEs. The concept of a CW resonance cone underlies the discussion of Sec.…”

Section: Rf Charging Of Spacecraft and Transient Effectsmentioning

confidence: 99%

OEDIPUS-C observations of electrons accelerated by radio frequency fields at whistler-mode frequencies

et al. 1999

View full text Add to dashboard Cite

show abstract

“…Fig. l], the cone radius r is locally related to latitude by (also see Simonutti• [1976]). figure 2(b), the spectral amplitude of the Fig.2(a) The cos •' (w,•r/2) factor acts as a frequency-domain 'comb' filter, passing only frequencies that are integral multiples of •-•.…”

Section: Thus Fa•(z) --(1 -Z/zsmentioning

confidence: 99%