Open Access

Response of piezoelectric lead zirconate titanate detector to oblique impact with hypervelocity iron particles

  • S. Takechi15Email author,
  • T. Onishi15,
  • S. Minami15,
  • T. Miyachi25,
  • M. Fujii25,
  • N. Hasebe25,
  • K. Mori25,
  • K. Nogami35,
  • H. Ohashi45,
  • S. Sasaki55,
  • H. Shibata65,
  • T. Iwai75,
  • E. Grün85,
  • R. Srama85 and
  • N. Okada95
Earth, Planets and Space200860:BF03352876

Received: 25 October 2007

Accepted: 4 August 2008

Published: 10 December 2008


A cosmic dust detector using piezoelectric lead zirconate titanate (PZT) is currently being developed for use onboard a spacecraft for the BepiColombo mission. The characteristics of the PZT detector were studied by carrying out hypervelocity impact measurements with iron particles supplied by a Van de Graaff accelerator. The measurements with particle velocities of less than 5 km/s showed a linear relationship between the output voltages obtained from the detector and the particle momenta. This linear relationship obtained was almost independent of the impact angle between the particle and the PZT surface.

Key words

Cosmic dustdust detectorpiezoelectricitylead zirconate titanate (PZT)Mercury Dust Monitor (MDM)