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| HAL: hal-00316912, version 1 |
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| Annales Geophysicae 19, 10/12 (2001) 1273-1288 |
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| The Electron Drift Instrument on Cluster: overview of first results |
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| G. Paschmann 1J. M. Quinn 2 |
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| (2001) |
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| EDI measures the drift velocity of artificially injected electron beams. From this drift velocity, the perpendicular electric field and the local magnetic field gradients can be deduced when employing different electron energies. The technique requires the injection of two electron beams at right angles to the magnetic field and the search for those directions within the plane that return the beams to their associated detectors after one or more gyrations. The drift velocity is then derived from the directions of the two beams and/or from the difference in their times-of-flight, measured via amplitude-modulation and coding of the emitted electron beams and correlation with the signal from the returning electrons. After careful adjustment of the control parameters, the beam recognition algorithms, and the onboard magnetometer calibrations during the commissioning phase, EDI is providing excellent data over a wide range of conditions. In this paper, we present first results in a variety of regions ranging from the polar cap, across the magnetopause, and well into the magnetosheath. |
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| 1: | Max-Planck-Institut für extraterrestrische Physik |
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Max-Planck-Institut für extraterrestrische Physik |
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| 2: | University of New Hampshire |
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University of New Hampshire |
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| 3: | University of California [San Diego] (UCSD) |
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University of California, San Diego |
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| 4: | International University Bremen |
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International University Bremen |
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| 5: | Space Research Institute |
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Space Research Institute |
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| 6: | University of Iowa |
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University of Iowa |
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| 7: | University of Washington |
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University of Washington |
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| Subject | : | Sciences of the Universe/Ocean, Atmosphere Sciences of the Universe/Earth Sciences |
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| Attached file list to this document: | |||||
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| hal-00316912, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00316912 | |
| oai:hal.archives-ouvertes.fr:hal-00316912 | |
| From: Publication EGU | |
| Submitted on: Monday, 1 January 2001 08:00:00 | |
| Updated on: Wednesday, 3 September 2008 12:31:19 | |
