Estimating the impact parameters of cosmic dust particles using a piezoelectric lead zirconate titanate detector
| Autor: | Seiji Takechi, Hiromi Shibata, Sho Sasaki, Hideo Ohashi, Eberhard Grün, Nagaya Okada, Ken-Ichi Nogami, Takeo Iwai, Takashi Miyachi, Ralf Srama, Nobuyuki Hasebe, Masayuki Fujii |
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| Rok vydání: | 2009 |
| Předmět: |
Atmospheric Science
Materials science Physics::Instrumentation and Detectors Piezoelectricity Radiation Lead zirconate titanate law.invention Condensed Matter::Materials Science chemistry.chemical_compound Optics law Van de Graaff generator Cosmic dust business.industry Lead zirconate titanate (PZT) Detector Mercury dust monitor (MDM) Computer Science::Other Geophysics chemistry Space and Planetary Science Hypervelocity Particle business |
| Zdroj: | Journal of Atmospheric and Solar-Terrestrial Physics. 71:191-193 |
| ISSN: | 1364-6826 |
| Popis: | A cosmic dust detector for installation on a satellite is currently being developed using piezoelectric lead zirconate titanate (PZT), which can possess both functions of the collector and the transducer. The characteristics of the PZT detector have been studied by bombarding it with hypervelocity particles supplied by a Van de Graaff accelerator. The front surface of the detector used in this study was covered with a white paint to reduce any increase in the temperature due to the solar radiation. There was a linear relationship between the rise time of the signal produced by the detector and the particle's velocities, which were above 10 km/s on impact. This implies that individual particle velocities on impact can be inferred through the empirical formula derived from the data obtained from the PZT detector. |
| Databáze: | OpenAIRE |
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