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| Titel |
In-flight calibration of the Hot Ion Analyser on board Cluster |
| VerfasserIn |
A. Blagau, I. Dandouras, A. Barthe, S. Brunato, G. Facskó, V. Constantinescu |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
2193-0856
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Instrumentation, Methods and Data Systems ; 3, no. 1 ; Nr. 3, no. 1 (2014-04-23), S.49-58 |
| Datensatznummer |
250115212
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| Publikation (Nr.) |
 copernicus.org/gi-3-49-2014.pdf |
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| Zusammenfassung |
| The Hot Ion Analyser (HIA), part of the Cluster Ion Spectrometry experiment,
has the objective to measure the three-dimensional velocity distributions of
ions. Due to a variety of factors (exposure to radiation, detector fatigue
and aging, changes in the operating parameters, etc.), the particles' detection
efficiency changes over time, prompting for continuous in-flight calibration.
This is achieved by comparing the HIA data with the data provided by the
WHISPER (Waves of HIgh frequency and Sounder for Probing of Electron
density by Relaxation) experiment on magnetosheath intervals, for the high-sensitivity
section of the instrument, or solar wind intervals, for the low-sensitivity
section. The paper presents in detail the in-flight calibration methodology,
reports on the work carried out for calibrating HIA and discusses plans to
extend this activity in order to ensure the instrument's highest data accuracy. |
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