Multimodal characteristics of a piezoelectric lead zirconate titanate element impacted with iron particles having velocities above 20 km/s |
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| Authors: | Takashi Miyachi,Masayuki Fujii,Nobuyuki Hasebe,Osamu Okudaira,Seiji Takechi,Toshiyuki Onishi,Shigeyuki Minami,Masanori Kobayashi,Takeo Iwai,Eberhard Grü n,Ralf Srama,Nagaya Okada |
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| Affiliation: | 1. Advanced Research Institute for Science and Engineering, Waseda University, Shinjuku-ku, Tokyo 169-8555, Japan;2. Graduate School of Engineering, Osaka City Uiversity, Sumiyoshi-ku, Osaka 558-8585, Japan;3. Planetary Exploration Research Center, Narashino, Chiba Institute of Technology, Chiba 275-0016, Japan;4. Nuclear Professional School, School of Engineering, University of Tokyo, Tokai, Ibaraki 319-1106, Japan;5. Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany;6. Universität Stuttgart, Institut für Raumfahrtsysteme, Pfaffenwaldring 31, 70569 Stuttgart, Germany;g Honda-Electronics Co., Ltd., Toyohashi, Aichi 441-3193, Japan |
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| Abstract: | The responses of a piezoelectric lead zirconate titanate (PZT) element to hypervelocity collisions were experimentally studied. In this study, the particles of masses ranging from 0.3 to 10 fg were made to collide with PZT at velocities between 20 and 96 km/s. The amplitude and the corresponding rise time of the single-pulse output signals that were produced in the piezoelectric PZT element were measured to determine the possible collision states. The results revealed an apparently multimodal output; three classes were assumed to be involved in the pulse formation mechanism. The amplitude and rise time were sensitive to the collision velocity. The multimodal behavior implied that the PZT-based cosmic dust detectors should be calibrated according to the class they belong to. |
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| Keywords: | Hypervelocity collision Multimodal PZT response Cosmic dust detector |
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