Physics
Scientific paper
Feb 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009jastp..71..191t&link_type=abstract
Journal of Atmospheric and Solar-Terrestrial Physics, Volume 71, Issue 2, p. 191-193.
Physics
Cosmic Dust, Piezoelectricity, Lead Zirconate Titanate (Pzt), Mercury Dust Monitor (Mdm)
Scientific paper
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.
Fujii Masaaki
Grün Eberhard
Hasebe Nabuyuki
Iwai Toshihiro
Miyachi Takashi
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