EDI electron time-of-flight measurements on Equator-S
| Autor: | H. Vaith, W. Fillius, S. S. Kerr, Wolfgang Baumjohann, J. M. Quinn, Gerhard Haerendel, Craig Kletzing, N. Sckopke, G. Paschmann, Carl E. McIlwain, O. H. Bauer, E. C. Whipple, K. A. Lynch, Roy B. Torbert |
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| Rok vydání: | 1999 |
| Předmět: |
Physics
Atmospheric Science Drift velocity business.industry Magnetometer lcsh:QC801-809 Magnetosphere Geology Astronomy and Astrophysics Electron lcsh:QC1-999 Magnetic field law.invention lcsh:Geophysics. Cosmic physics Time of flight Optics Space and Planetary Science law Electric field Earth and Planetary Sciences (miscellaneous) Cathode ray lcsh:Q lcsh:Science business lcsh:Physics |
| Zdroj: | Scopus-Elsevier Annales Geophysicae, Vol 17, Pp 1513-1520 (1999) Annales Geophysicae, Vol 17, Iss 12, Pp 1513-1520 (0000) |
| ISSN: | 1432-0576 |
| DOI: | 10.1007/s00585-999-1513-3 |
| Popis: | We present the first electron time-of-flight measurements obtained with the Electron Drift Instrument (EDI) on Equator-S. These measurements are made possible by amplitude-modulation and coding of the emitted electron beams and correlation with the signal from the returning electrons. The purpose of the time-of-flight measurements is twofold. First, they provide the drift velocity, and thus the electric field, when the distance the electrons drift in a gyro period becomes sufficiently large. Second, they provide the gyro time of the electrons emitted by the instrument, and thus the magnitude of the ambient magnetic field, allowing in-flight calibration of the flux-gate magnetometer with high precision. Results of both applications are discussed.Key words. Magnetospheric physics (electric fields; plasma convection; instruments and techniques) |
| Databáze: | OpenAIRE |
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