Collisional electron detachment of atomic anions by noble gases: universal behavior at intermediate velocities

Autor:	Ginette Jalbert, L. F. S. Coelho, S. D. Magalhães, Fabio Zappa, N. V. de Castro Faria, Alexandre B. Rocha
Jazyk:	angličtina
Rok vydání:	2004
Předmět:	Physics Cross section (physics) Neon Argon chemistry Ionization General Physics and Astronomy chemistry.chemical_element Atomic number Electron Atomic physics Charged particle Ion
Zdroj:	Brazilian Journal of Physics, Volume: 34, Issue: 3a, Pages: 825-828, Published: SEP 2004 Brazilian Journal of Physics v.34 n.3a 2004 Brazilian Journal of Physics Sociedade Brasileira de Física (SBF) instacron:SBF
Popis:	Anions with atomic number lower than 18 had their total electron detachment cross sections measured in the 0.3-1.5 a.u. velocity range (40 keV-1.4 MeV) for He, Ne, and Ar targets with a experimental method developed in our laboratory. Several universal trends were observed: (a) each cross section can be described as the product of a target-dependent curve by a projectile-dependent constant; (b) for a given target all cross sections present a maximum at almost the same velocity; (c) the cross section ratios taken between different periods in a given column are target-independent.
Databáze:	OpenAIRE
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