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 language | English (US) |
|---|---|
| Pages (from-to) | 5-14 |
| Number of pages | 10 |
| Journal | International Journal of Mass Spectrometry and Ion Processes |
| Volume | 146-147 |
| Issue number | C |
| DOIs | |
| State | Published - Aug 31 1995 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - Ion-emitting molten glasses - silica gel revisited
AU - Huett, T.
AU - Ingram, Jani C
AU - Delmore, J. E.
PY - 1995/8/31
Y1 - 1995/8/31
N2 - 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.
AB - 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.
KW - Ion emitter
KW - Ion imaging
KW - Molten glass
KW - Silica gel
KW - Surface (thermal) ionization
UR - http://www.scopus.com/inward/record.url?scp=0342555978&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0342555978&partnerID=8YFLogxK
U2 - 10.1016/0168-1176(95)04184-M
DO - 10.1016/0168-1176(95)04184-M
M3 - Article
VL - 146-147
SP - 5
EP - 14
JO - International Journal of Mass Spectrometry
JF - International Journal of Mass Spectrometry
SN - 1387-3806
IS - C
ER -