Evidence of charge exchange pumping in calcium−xenon system

Chubb, Donald L.

doi:10.1063/1.322249

Cited by 5 publications

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References 2 publications

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“…Xt(tl) wurde in unserem Fall durch Abmrptionsmessungen und N+(t,) unter Nutzung von N+(O) n,(O) mit Hilfe der Elektronenkonzentration n,(O) bestimmt. Die Absohatzung von n,(O) erfolgte mittele der Zerfallswahrscheinlichkeit ,u8 (uvJ n, der metastabilen He( 21So)-Atome, die durch den ProzeB He(21So) + e -+ + Z (13) abgebaut werden. Der erhaltene Ratenkoeffizient betriigt bei einer Genauigkeit bis zu einem Faktor 2 (ma)+' = 0,s -10-9 cm3 s-1.…”

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Spektroskopische Untersuchung unelastischer Stöße zwischen Ionen oder metastabilen Atomen der Edelgase und Alkalimetallatomen bei thermischen Stoßenergien

Vogel¹,

Tolmachev²

1982

Contrib Plasma Phys

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The present woik deals with the spectroscopic investigation of Penning ionization and nonresonant charge exchange due to thermal-energy collisions of metastable atoms or ions of the inert gases He, Ne with atoms of alkali metals K, Rb, Cs in a low temperature plasma of the corresponding binary mixtures. The rate constants of these reactions and partial rate constants of exciting several alkali metal ion levels were determined by the kinetics of the decay of ionized and excited particles in the afterglow of a pulsed discharge. Measured Penning and chnige exchange constants are in order of cm3 sec-'. Partial Penning constants in the He-Cs system exhibit a small dependence of the energy defect of reaction, whereby an important part of collisions results in excited Cs+-states. On the contrary, energy transfer by charge exchange in He-Rb, Cs systems distinguishes by a significant energy defect dependence. Charge exchange from He+ to Rb, leads above all to He(233S,)-;rtoms and normal Rbf-ions. It follows from the metal ion spectrums, that Penning iqnization and charge exchange of the investigated systenis under utilized conditions represent as processes of selective excitation of alkali metal ions in afterglow and stationtlry discharge.

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Spektroskopische Untersuchung unelastischer Stöße zwischen Ionen oder metastabilen Atomen der Edelgase und Alkalimetallatomen bei thermischen Stoßenergien

Vogel¹,

Tolmachev²

1982

Contrib Plasma Phys

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Charge transfer excitation processes in analytical glow discharges – A review

Mushtaq

2020

J. Anal. At. Spectrom.

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Charge exchange in zinc-neon

Chubb

1976

Journal of Applied Physics

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Excitation of the 4d and 5p levels of Zn+ by charge exchange between Ne+ and Zn was investigated. From measured electron temperature and line intensity ratios it was concluded that charge exchange is the dominant mechanism for populating the 4d 2D5/2 level of Zn+. Comparison of Zn-Ne and Zn-Ar results imply the same conclusion. No evidence for charge exchange as the dominant pumping mechanism for the 5p 2P1/2, 5p 2P3/2, or 4d 2D3/2 levels was obtained.

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Evidence of charge exchange pumping in calcium−xenon system

Cited by 5 publications

References 2 publications

Spektroskopische Untersuchung unelastischer Stöße zwischen Ionen oder metastabilen Atomen der Edelgase und Alkalimetallatomen bei thermischen Stoßenergien

Spektroskopische Untersuchung unelastischer Stöße zwischen Ionen oder metastabilen Atomen der Edelgase und Alkalimetallatomen bei thermischen Stoßenergien

Charge transfer excitation processes in analytical glow discharges – A review

Charge exchange in zinc-neon

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