Digital positron lifetime spectrometer for measurements of radioactive materials

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Abstract

A digital positron lifetime spectrometer for the measurements of 2 GBq level radioactive materials has been constructed and successfully tested. The equipment consists of a state-of-the-art digital oscilloscope and three movable scintillation detectors operating in triple-coincidence mode. The time resolution of 188 ps full-width at half-maximum (FWHM) is achieved for the positron lifetime measurements of radioactive specimens. Also by comparison of measurements of well-known material with and without high 60Co background radiation the ability to measure radioactive specimens is proved. In this paper the performance, construction, installation, optimization and calibration of the setup is reported.

Details

Original languageEnglish
Pages (from-to)4001-4003
JournalPhysica Status Solidi (C)
Volume4
Issue number10
DOIs
Publication statusPublished - 9 Aug 2007
EventThe XIVth International Conference on Positron Annihilation - McMaster University, Hamilton, Canada
Duration: 23 Jul 200628 Jul 2006

Keywords

  • Positron annihilation spectroscopy, electronic setup

ID: 231209