Injection of photoelectrons into dense argon gas

Details Injection of photoelectrons into dense argon gas Injection of photoelectrons into dense argon gas

2010-07-07

arxiv.org/abs/1007.1187v2

Physics

Plasma Physics

18 pages, 10 figures, figure nr. 10 has been redrawn, to be submitted to Plasma Sources Science and Technology

Scientific paper

10.1088/0963-0252/20/3/034001

The injection of photoelectrons in a gaseous or liquid sample is a widespread technique to produce a cold plasma in a weakly--ionized system in order to study the transport properties of electrons in a dense gas or liquid. We report here the experimental results of photoelectron injection into dense argon gas at the temperatureT=142.6 K as a function of the externally applied electric field and gas density. We show that the experimental data can be interpreted in terms of the so called Young-Bradbury model only if multiple scattering effects due to the dense environment are taken into account when computing the scattering properties and the energetics of the electrons.

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