Comparison of the thermal desorption spectra and exoemission spectra of BeO:TiO2 and BeO:Li thermally stimulated exoelectron emission detectors

Gábor Molnár, Sándor Gaál, Orsolya Kóréh, József Borossay

Research output: Contribution to journalArticle

Abstract

In thermally stimulated exoelectron emission (TSEE) dosimetry the irradiation is generally executed in air while the read out is in methane. Under these conditions adsorption/desorption effects appear which influence the exoemission. BeO:Li and BeO:TiO2 ceramics were compared from this point of view. The effect of adsorption/desorption was studied in such a way that in the cycles of irradiation/read-out the cooling down was executed successively in a methane atmosphere or in air. The TSEE curves of the BeO:TiO2 ceramic were more influenced by the cooling atmosphere than those of the BeO:Li ceramic. In order to explain this result the thermal desorption spectra of these materials was taken.

Original languageEnglish
Pages (from-to)683-685
Number of pages3
JournalRapid Communications in Mass Spectrometry
Volume11
Issue number6
DOIs
Publication statusPublished - 1997

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry

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