Ion-emitting molten glasses - silica gel revisited

T. Huett, Jani C Ingram, J. E. Delmore

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A Bi- ion emitter has been developed and studied which is modeled on the silica gel matrices that have been used to produce ions from a variety of elements such as Pb, Ag and Te for isotope ratio measurements. Studies with this model system demonstrate that this ion emitter is a liquid glass and that ion emission originates from the surface of the liquid glass. The large difference in ion emission observed with the use of different refractory metal filaments to support this silica gel type matrix is shown to be due to the extent to which the refractory metal is dissolved by the liquid glass, altering the properties of the glass, which in turn alters the ion emission properties. It is not due to the variation in work function of the refractory metal support filaments, as had been suspected. Additional types of study will have to be conducted in order to understand the mechanism of ion emission from the surfaces of these molten glasses.

Original languageEnglish (US)
Pages (from-to)5-14
Number of pages10
JournalInternational Journal of Mass Spectrometry and Ion Processes
Volume146-147
Issue numberC
DOIs
StatePublished - Aug 31 1995
Externally publishedYes

Fingerprint

Silica Gel
Silica gel
silica gel
ion emission
Molten materials
refractory metals
Ions
Glass
glass
Refractory metals
ions
filaments
emitters
liquids
Liquids
isotope ratios
matrices
Isotopes
Chemical elements

Keywords

  • Ion emitter
  • Ion imaging
  • Molten glass
  • Silica gel
  • Surface (thermal) ionization

ASJC Scopus subject areas

  • Spectroscopy

Cite this

Ion-emitting molten glasses - silica gel revisited. / Huett, T.; Ingram, Jani C; Delmore, J. E.

In: International Journal of Mass Spectrometry and Ion Processes, Vol. 146-147, No. C, 31.08.1995, p. 5-14.

Research output: Contribution to journalArticle

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