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Initial results of positron ionization mass spectrometry
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Eckenrode, B. A. McLuckey, S. A. Donohue, D. L. Hulett Jr., L. D. Glish, G. L. |
| Copyright Year | 1990 |
| Description | The use of monoenergetic positrons for the ionization of organic molecules in the gas phase is described. The ionic products are analyzed with a time-of-flight mass spectrometer and detected to produce a mass spectrum. The ionization mechanisms which can be studied in this way include positron impact at energies above the ionization limit of the target molecules, positronium formation in the Ore gap energy range, and positron attachment at energies less than 1eV. The technique of positron ionization mass spectrometry (PIMS) may have analytical utility in that chemical selectivity is observed for one or more of these processes. |
| File Size | 156181 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900009679 |
| Archival Resource Key | ark:/13960/t6c29sv72 |
| Language | English |
| Publisher Date | 1990-01-01 |
| Access Restriction | Open |
| Subject Keyword | Atomic And Molecular Physics Electron Impact Time of Flight Spectrometers Vapor Phases Positrons Atomic Excitations Mass Spectroscopy Targets Positronium Mass Spectra Ion Production Rates Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
