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Multiple-ionization of xenon atoms by positron impact
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Quermann Sr., Andreas Raith, Wilhelm Kruse, Georg Sinapius, Guenther |
| Copyright Year | 1990 |
| Description | Previously the cross sections were measured for positronium formation and single ionization by positron impact for He and H2. With the same apparatus, slightly modified, the single and multiple ionization of xenon is now investigated. The principle of the method is the detection of ion and positron in time correlation which allows the discrimination of positronium formation (whereby the positron vanishes) and the destinction of single, double and triple impact ionization (which lead to different ion flight times from the gas target to the ion detector). By using secondary electrons from the positron moderator, similar measurements were performed on electron impact ionization. By comparing with literature values for electron multiple ionization cross sections, the detection-probability ratios were determined for the differently charged ions. |
| File Size | 98291 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900009662 |
| Archival Resource Key | ark:/13960/t9n34rk7t |
| Language | English |
| Publisher Date | 1990-01-01 |
| Access Restriction | Open |
| Subject Keyword | Atomic And Molecular Physics Electron Impact Annihilation Reactions Particle Production Hydrogen Probability Theory Xenon Targets Secondary Emission Time of Flight Spectrometers Positrons Ion Impact Positronium Ionization Cross Sections Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
