1s-1s electron transfer in collisions of fast C and O ions with adenine
| Autor: | Gregory Lapicki, Lokesh C. Tribedi, Chandan Bagdia, A. Mandal, M. Roy Chowdhury, Shamik Bhattacharjee |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Nuclear and High Energy Physics
Auger electron spectroscopy Range (particle radiation) Materials science 01 natural sciences 010305 fluids & plasmas Ion Cross section (physics) Electron transfer Ionization 0103 physical sciences Atom Atomic physics 010306 general physics Instrumentation Stationary state |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 462:68-74 |
| ISSN: | 0168-583X |
| Popis: | 1s-1s electron transfer and K-shell ionization cross sections of adenine (C5H5N5) molecule have been measured in collisions with C and O ions in the energy range of 2.5–5.3 MeV/u. These cross sections have been measured from the study of KLL Auger electron yields as a function of projectile charge state. The K-ionization cross section data have been compared with the ECUSAR calculations [ECPSSR model with the perturbed stationary state (PSS) effect calculated in a united and separated atom (USA) approximation]. The K-ionization data shows a good agreement with the model whereas the K-K transfer cross section is underestimated by the same model. Energy dependence of the K-K transfer cross section for adenine is found to be flat compared to that for N2 gas molecules. The values of the K-K e− transfer and the K-ionization cross sections are found to be comparable in this energy range. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect