Response of Piezoelectric acoustic emission sensors to gamma radiation

Keith Holbert, Sriram Sankaranarayanan, Steven S. McCready, Dane R. Spearing, A. Sharif Heger

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

Piezoelectric (PE) acoustic emission sensors were exposed to hundreds of kGy from Co-60 gamma rays. Specifically, Digital Wave sensor models B1025, B1025LD and B1080 were irradiated to doses of 829 kGy, 414 kGy and 318 kGy, respectively. The PE material employed in all three models is lead metaniobate. The sensors did not show any catastrophic failure up to the exposure levels tested. Recalibration of the sensors showed no degradation of their frequency response. The sensor sensitivity appears to decrease linearly by about 8.4% per 100 kGy.

Original languageEnglish (US)
Pages (from-to)559-565
Number of pages7
JournalEuropean Space Agency, (Special Publication) ESA SP
Volume2003-September
StatePublished - 2003
Event7th European Conference on Radiation and its Effects on Components and Systems, RADECS 2003 - Noordwijk, Netherlands
Duration: Sep 15 2003Sep 19 2003

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

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