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Pregled bibliografske jedinice broj: 664480

Influence of K-edge absorption on Kβ X-ray spectra of Ti and V induced by the proton impact


Fazinić, Stjepko; Mandić, Luka; Tadić, Tonči; Božičević Mihalić, Iva
Influence of K-edge absorption on Kβ X-ray spectra of Ti and V induced by the proton impact // Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 297 (2013), 94-101 doi:10.1016/j.nimb.2012.12.042 (međunarodna recenzija, članak, znanstveni)


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Naslov
Influence of K-edge absorption on Kβ X-ray spectra of Ti and V induced by the proton impact

Autori
Fazinić, Stjepko ; Mandić, Luka ; Tadić, Tonči ; Božičević Mihalić, Iva

Izvornik
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms (0168-583X) 297 (2013); 94-101

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
high-resolution spectra; Kβ fine structure; K-edge; Ti; V; multiple ionization satellites; self-absorption

Sažetak
Our recent analysis of experimental high-resolution Kβ PIXE spectra from thick Ti, V, Cr and Mn metallic targets showed asymmetric Kβ2, 5 lines with sharper (narrower) high-energy wing. This could be due to their partial self-absorption in the target due to their location very close to the K-shell absorption edge. In case of these elements, multiple ionization satellites (KβLm) are heavily affected by the fine structure of the absorption edge since their energy is just above the K-edge. In order to estimate the influence of K-edge Kβ self-absorption to thick-to-thin target yield ratios, we used related experimental XANES data to estimate absorption coefficients very close to the edge. However, the comparison of published XANES spectra showed differences in energy calibrations which could lead to uncertainties in calculated thick-to-thin target yield ratios for Kβ2, 5 and KβLm components. In order to resolve these uncertainties and investigate the influence of the K absorption-edge on self-absorption of Kβ X-ray band components (Kβ2, 5 and KβLm) more precisely, we measured K X-rays of thin and thick Ti, V and their selected compounds with and without respective absorber foils of appropriate and well known thickness, using both high resolution and low resolution spectrometers. The spectra obtained by low resolution spectrometer (standard Silicon Drift Detector) were used to study absorption of multiple ionization satellites, and high resolution spectra (obtained by the wavelength dispersive spectrometer) were used to analyze the influence of the K-edge on Kβ2, 5 absorption. The measured spectra have been analyzed and the results discussed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
098-1191005-2876 - Procesi interakcije ionskih snopova i nanostrukture (Jakšić, Milko, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Sveučilište u Osijeku - Odjel za fiziku,
Sveučilište u Rijeci - Odjel za fiziku

Citiraj ovu publikaciju

Fazinić, Stjepko; Mandić, Luka; Tadić, Tonči; Božičević Mihalić, Iva
Influence of K-edge absorption on Kβ X-ray spectra of Ti and V induced by the proton impact // Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 297 (2013), 94-101 doi:10.1016/j.nimb.2012.12.042 (međunarodna recenzija, članak, znanstveni)
Fazinić, S., Mandić, L., Tadić, T. & Božičević Mihalić, I. (2013) Influence of K-edge absorption on Kβ X-ray spectra of Ti and V induced by the proton impact. Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 297, 94-101 doi:10.1016/j.nimb.2012.12.042.
@article{article, year = {2013}, pages = {94-101}, DOI = {10.1016/j.nimb.2012.12.042}, keywords = {high-resolution spectra, Kβ fine structure, K-edge, Ti, V, multiple ionization satellites, self-absorption}, journal = {Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms}, doi = {10.1016/j.nimb.2012.12.042}, volume = {297}, issn = {0168-583X}, title = {Influence of K-edge absorption on Kβ X-ray spectra of Ti and V induced by the proton impact}, keyword = {high-resolution spectra, Kβ fine structure, K-edge, Ti, V, multiple ionization satellites, self-absorption} }
@article{article, year = {2013}, pages = {94-101}, DOI = {10.1016/j.nimb.2012.12.042}, keywords = {high-resolution spectra, Kβ fine structure, K-edge, Ti, V, multiple ionization satellites, self-absorption}, journal = {Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms}, doi = {10.1016/j.nimb.2012.12.042}, volume = {297}, issn = {0168-583X}, title = {Influence of K-edge absorption on Kβ X-ray spectra of Ti and V induced by the proton impact}, keyword = {high-resolution spectra, Kβ fine structure, K-edge, Ti, V, multiple ionization satellites, self-absorption} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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