This article is cited in 8 papers

Electron-impact ionization of sulfur in the gas phase

A. N. Zavilopulo, O. B. Shpenik, P. P. Markush, M. I. Mykyta

Institute of Electron Physics, National Academy of Sciences of Ukraine

Abstract: The procedure and results of studying the yield of positive ions formed via electron-impact dissociative ionization of sulfur are described. The ionization energy of the ground molecule and appearance energies of fragmentary ions are derived from the ionization efficiency curves. The dynamics of formation of molecular sulfur ions in the temperature range of 300––670 K are studied. The energy dependences of the efficiency of formation of ions $S_n$ for $n$ = 1–6 are analyzed, and the appearance energies are determined. The total ionization cross section of sulfur is determined using a monoenergetic electron beam.

Received: 20.06.2013

 English version: Technical Physics Letters, 2014, 40:1, 13–17

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