Abstract
The spatial distribution of a pulsed molecular beam of CH3I seeded in Ar was monitored by a moveable mass spectrometer. The same beam was also subjected to electron impact measurements, which provide additional information on the properties of the beam. Both measurements were carried out over a wide range of stagnation pressures. Substantial separation of gases both across and along the jet was observed. Some other mixtures were also tested for the existence of the separation effect. In several cases, there was no correlation between the value of the separation effect and the ratio of molecular masses of the mixed gases. These phenomena are accounted for by the formation of large clusters of the carrier gas, with guest molecules embedded in them.
| Original language | English |
|---|---|
| Pages (from-to) | 215-223 |
| Number of pages | 9 |
| Journal | Chemical Physics |
| Volume | 221 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - 15 Aug 1997 |
Bibliographical note
Funding Information:This project was supported by a grant from the Israeli National Science Foundation, administered by the Israel Academy of Science and Humanities. AM thanks the Ministry of Absorption and the Center for Absorption in Science. Special thanks to Dr. Shifra Hochberg for editorial assistance.
Funding
This project was supported by a grant from the Israeli National Science Foundation, administered by the Israel Academy of Science and Humanities. AM thanks the Ministry of Absorption and the Center for Absorption in Science. Special thanks to Dr. Shifra Hochberg for editorial assistance.
| Funders | Funder number |
|---|---|
| Israeli National Science Foundation | |
| Israel Academy of Sciences and Humanities |
Keywords
- Electron impact
- Gas separation
- Mixed clusters
- Pulsed supersonic jet