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Study of the argon 3s hole state and argon 3s, 3p satellite states by fluorescence spectroscopy
Abstract
The fluorescent radiation emitted by the Ar 3s, 3p satellite states have been observed in the wavelength range between 400-950 A and 4000-5000 A with 50-100 mV energy resolution in conjunction with synchrotron radiation. The relative partial photoionization cross sections of three specific Ar$\sp+$ satellite states have been obtained by measuring the intensity distributions of these states as a function of wavelength between 300 and 350 A in conjunction with synchrotron radiation. The specific states studied were the ($\sp3P$)4p($\sp2P\sb{3/2}$), ($\sp1D$) 4p($\sp2F\sb{7/2}$), and ($\sp1D$)4p($\sp2P\sb{1/2}$) states. The fluorescent radiation emitted from these excited ionic states was measured at 4766 A, 4611 A, and 4133 A by the use of interference filters. Each satellite state was found to be completely dominated by autoionization of the neutral doubly excited states ($3s\sp23p\sp4$)nl, nl$\sp\prime$, particularly near the threshold. The photoionization cross section of the Argon 3s state was measured from threshold (424 A) to 300 A by use of fluorescence spectroscopy in conjunction with synchrotron radiation. Resonance structure due to double electron excitations have been observed.
Subject Area
Atoms & subatomic particles
Recommended Citation
Lee, Eun-Mee, "Study of the argon 3s hole state and argon 3s, 3p satellite states by fluorescence spectroscopy" (1989). ETD collection for University of Nebraska-Lincoln. AAI9022994.
https://digitalcommons.unl.edu/dissertations/AAI9022994