Naslov
Projectile-energy dependence of H-like Ar Lyman-alpha emission in solids

Autori
Watson, R.L. ; Horvat, Vladimir ; Blackadar, J.M.

Izvornik
Physical review A (1050-2947) 55 (1997), 3; 1988-1993

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

Ključne riječi
K x rays; argon; emission in solids; fast ions

Sažetak
Spectra of K x rays from Ar ions (incident energy 15 MeV/u) traveling in thick solid targets of Be, C, NaF, and KCl were measured with a curved crystal spectrometer for the purpose of investigating the dependence of the H-like Ar 2p-state population fraction on projectile energy and target atomic number. Information pertaining to the energy dependence of the 2p fraction was obtained from the Doppler-shifted average energies and peak shapes associated with the Lyman- alpha lines. Model calculations that took into consideration the fraction of ions with one 2p electron and x-ray absorption as a function of depth in the target were performed. Generally good agreement between the experimental results and the predictions of the model were observed for all of the targets except NaF.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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