| Autor: |
Erzsebet Papp-Szabo, T. Papp, John Campbell |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 189:33-38 |
| ISSN: |
0168-583X |
| DOI: |
10.1016/s0168-583x(01)00990-9 |
| Popis: |
With accurate analog and digital signal processing, the stability of an X-ray line in a typical spectrum can be as good as 0.3 eV given appropriate precautions. In contrast, newly available atomic binding energy databases indicate that the difference between the Kα and Kβ X-ray energies can range over several eV, depending on the chemical state of the emitter element. In addition the Kβ ′ satellite structure varies significantly in energy and intensity depending on chemical state. It follows that PIXE spectra cannot be fitted with optimal accuracy if the database does not recognize these effects. On the positive side, it now appears worthwhile to investigate the possibility of deducing chemical information from the Kα–Kβ separation in PIXE spectra. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect