Acceleration of electrons in strong beam-plasma interactions

Details Acceleration of electrons in strong beam-plasma interactions Acceleration of electrons in strong beam-plasma interactions

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984georl..11.1176w&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 11, Dec. 1984, p. 1176-1179. Research supported by the National Research Cou

Computer Science

Sound

8

Beam Interactions, Electron Acceleration, Plasma-Particle Interactions, Space Plasmas, Upper Atmosphere, Electron Beams, Electron Energy, Rocket Sounding

Scientific paper

The effects of strong beam-plasma interactions on the electron population of the upper atmosphere have been investigated in an electron acceleration experiment performed with a sounding rocket. The rocket carried the Several Complex Experiments (SCEX) payload which included an electron accelerator, three disposable 'throwaway' detectors (TADs), and a stepped electron energy analyzer. The payload was launched in an auroral arc over the rocket at altitudes of 157 and 178 km, respectively. The performance characteristics of the instruments are discussed in detail. The data are combined with the results of laboratory measurements and show that electrons with energies of at least two and probably four times the injection energy of 2 keV were observed during strong beam-plasma interaction events. The interaction events occurred at pitch angles of 54 and 126 degrees. On the basis of the data it is proposed that the superenergization of the electrons is correlated with the length of the beam-plasma interaction region.

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