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[en] The random-phase approximation (RPA) is applied to study nondipole corrections to the angular distribution of photoelectrons from the n=2 shell of Ne. Calculations of the parameters γnl and δnl arising from E1-E2 interference effects are carried out for the 2s and 2p subshells of Ne in the photon energy range 100 - 2000 eV. For the 2s shell, the RPA calculations show small effects of correlation near the 2s threshold energy, but are otherwise in agreement with independent-particle approximation (IPA) calculations. The RPA and IPA values of γ2s are also in agreement with experiment. For the 2p shell, a small difference between RPA and IPA calculations of the nondipole parameters is found for energies near the 1s threshold; however, both RPA and IPA calculations of the parameter γ2p+3δ2p disagree significantly with experimental measurements for photon energies above 1000 eV. copyright 1999 The American Physical Society
Journal
No abstract available
Journal
[en] In this paper we study the effects of photoionization processes on the propagation of both negative and positive ionization fronts in streamer discharge. We show that negative fronts accelerate in the presence of photoionization events. The appearance and propagation of positive ionization fronts travelling with constant velocity is explained as the result of the combined effects of photoionization and electron diffusion. The photoionization range plays an important role in the selection of the velocity of the ionization front as we show in this work
Journal
[en] At densities above 50 Amagats, light of frequency 2.818 x 104 cm-1 ionizes efficiently argon gas containing less than 1 part per million of impurities. For a given density we find for the number of free charges produced a square law dependence on light intensity. At constant light intensity the number of free charges produced varies approximately like the sixth power of density in the range 200-500 Amagats. (orig.)
Journal
Optics Communications; ISSN 0030-4018; 
; v. 38(3); p. 185-188
; v. 38(3); p. 185-188
[en] Full text: A number of polymer sorbents was obtained on the base of polyethylene mine with the improved sorption properties.Have been shown that protonization of functional groups of polymer results in improvement sorption properties of sorbents. The sorption capacity of polymer sorbents obtained on the base completely proton zed polyethylene mine almost twice above as compared to by sorbents synthesized by a customary way was established
Journal
Azerbajdzhanskij Khimicheskij Zhurnal; ISSN 0005-2531; ; v. 189(3); 3 p
; v. 189(3); 3 p
No abstract available
Journal
No abstract available
Journal
Physical Review. A, Atomic, Molecular, and Optical Physics (Online); ISSN 1094-1622; ; v. 63(04); [10 p.]
; v. 63(04); [10 p.]
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