Mioković, Anja; Božičević Mihalić, Iva; Fazinić, Stjepko; Rodriguez Ramos, Mauricio (2026) The influence of multiple ionization and chemical effects on magnesium Kα X-ray spectra in high-resolution proton and alpha PIXE measurements. Journal of Analytical Atomic Spectrometry, 41 (2). pp. 666-674. ISSN 0267-9477
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Abstract
High-resolution wavelength-dispersive (WD) X-ray emission spectra of the Mg K alpha band were measured for metallic Mg and selected Mg compounds under excitation with 2-3 MeV proton (H) and 1.5-5 MeV alpha (He) ion beams. The study investigated the influence of chemical state as well as ion beam type and energy on the positions and relative intensities of Mg K alpha spectral line components. In addition to the characteristic X-ray emission line, H-induced spectra revealed KL1 multiple ionization satellite (MIS) lines, while He excitation produced both KL1 and KL2 MIS groups with strong energy-dependent relative intensities. Small but measurable peaks' energy shifts were observed among different Mg compounds. Statistically significant variations in the relative intensities of KL1 group's components, correlating with chemical bonding, were also detected. The use of He excitation resulted in enhanced sensitivity for chemical speciation.
| Item Type: | Article | ||||||||
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| Uncontrolled Keywords: | Mg K alpha band; wavelength-dispersive X-ray emission spectroscopy; chemical speciation | ||||||||
| Subjects: | NATURAL SCIENCES | ||||||||
| Divisions: | Division of Experimental Physics | ||||||||
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| Depositing User: | Ana Zečević | ||||||||
| Date Deposited: | 20 May 2026 08:59 | ||||||||
| URI: | https://fulir.irb.hr:/id/eprint/11977 | ||||||||
| DOI: | 10.1039/d5ja00382b |
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