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Title:
Laboratory calibration measurements of a piezoelectric lead zirconate titanate cosmic dust detector at low velocities
Authors:
Takechi, S.; Nogami, K.; Miyachi, T.; Fujii, M.; Hasebe, N.; Iwai, T.; Sasaki, S.; Ohashi, H.; Shibata, H.; Grün, E.; Srama, R.; Okada, N.
Affiliation:
AA(Graduate School of Engineering, Osaka City University, Osaka 558-8585, Japan), AB(Department of Physics, Dokkyo University School of Medicine, Tochigi 321-0293, Japan), AC(Advanced Research Institute for Science and Engineering, Waseda University, Tokyo 169-8555, Japan), AD(Advanced Research Institute for Science and Engineering, Waseda University, Tokyo 169-8555, Japan), AE(Advanced Research Institute for Science and Engineering, Waseda University, Tokyo 169-8555, Japan), AF(Research Center for Nuclear Science and Technology, The University of Tokyo, Ibaraki 319-1106, Japan), AG(National Astronomical Observatory of Japan, Iwate 023-0861, Japan), AH(Faculty of Marine Science, Tokyo University of Marine Science and Technology, Tokyo 108-8477, Japan), AI(Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan), AJ(Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany), AK(Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany), AL(Honda Electronics Co. Ltd., Aichi 441-3193, Japan)
Publication:
Advances in Space Research, Volume 43, Issue 6, p. 905-909. (AdSpR Homepage)
Publication Date:
03/2009
Origin:
ELSEVIER
DOI:
10.1016/j.asr.2008.12.006
Bibliographic Code:
2009AdSpR..43..905T

Abstract

A cosmic dust monitor for use onboard a spacecraft is currently being developed using a piezoelectric lead zirconate titanate element (PZT). Its characteristics of the PZT sensor is studied by ground-based laboratory impact experiments using hypervelocity particles supplied by a Van de Graaff accelerator. The output signals obtained from the sensor just after the impact appeared to have a waveform that was explicitly related to the particle’s impact velocity. For velocities less than ˜6 km/s, the signal showed an oscillation pattern and the amplitude was proportional to the momentum of the impacting particle. For higher velocities, the signal gradually changed to a single waveform. The rise time of this single waveform was proportional to the particle’s velocity for velocities above ˜6 km/s. The present paper reports on results for the low velocity case and especially discusses the effect of an outer coating of the sensor with a paint, which is used to reduce heating by solar radiation.
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