Study of elastic and inelastic cross sections by positron impact on inert gases
| Autor: | Suvam Singh, Rahla Naghma, Bobby Antony, Jaspreet Kaur |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Range (particle radiation)
Materials science Scattering 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Optical potential Atomic and Molecular Physics and Optics Positronium Positron Interaction potential Ionization 0103 physical sciences Atomic physics 010306 general physics 0210 nano-technology Absorption (electromagnetic radiation) |
| Zdroj: | The European Physical Journal D. 72 |
| ISSN: | 1434-6079 1434-6060 |
| DOI: | 10.1140/epjd/e2018-80741-7 |
| Popis: | In this article, a modified computational method recently introduced is used for the calculation of total, positronium (Ps) formation and ionization cross sections including direct and total ionization cross sections for positron scattering from noble gases. The incident positron is assumed to have energies over a wide range from ~5 eV to 5 keV. The positron–atom interaction potential is developed under an optical potential framework and the computations of cross sections for each process are performed by introducing appropriate absorption thresholds. The calculated results obtained by employing this modified approach are found to be in reasonably good agreement with most of the existing data. |
| Databáze: | OpenAIRE |
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