Measurement of thermal and suprathermal electron energy distribution in the lower ionosphere by the sounding rocket "S-310-37"

Manabu Shimoyama, Takumi Abe, Koh Ichiro Oyama

Research output: Contribution to journalConference article

Abstract

Processes of energy cascade from suprathermal to thermal electrons significantly affect the thermal structure of the lower ionosphere. The Suprathermal Plasma Analyzer (SPA) was developed to measure an energy distribution of thermal and suprathermal electrons (< 5 eV). The principle of this analyzer is based on the innovative combination of a second harmonic method and a channel electron multiplier. Outstanding point of this analyzer are: 1) accurate calibration of electron energy within the order of 0.01 eV, and 2) the energy resolution smaller than 0.15 eV. The SPA was installed in the sounding rocket S-310-37 and observed the electron energy distribution function at the height from 100 km to 140 km.

Original languageEnglish
Pages (from-to)421-424
Number of pages4
JournalEuropean Space Agency, (Special Publication) ESA SP
Issue number647 SP
Publication statusPublished - 2007 Jun 1
Event18th ESA Symposium on European Rocket and Balloon Programmes and Related Research - Visby, Sweden
Duration: 2007 Jun 32007 Jun 7

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science

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