Transition rate diagrams and excitation of titanium in a glow discharge in argon and neon
Transition rate diagrams and excitation of titanium in a glow discharge in argon and neon
复制标题
氩和氖辉光放电中钛的跃迁速率图和激发
DOI:
10.1016/j.sab.2018.03.003
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发表时间:
2018
影响因子:
3.4
通讯作者:
Weiss Z
中科院分区:
文献类型:
--
作者:
Weiss Z
Emission spectra of titanium in a Grimm-type glow discharge in argon and neon were studied using the formalism of transition rate diagrams. Ti I spectra in argon and neon discharges are similar, without signs of selective excitation, and populations of Ti I levels exhibit a decreasing trend as function of energy, except for some scatter. A major excitation process of Ti II in argon discharge is charge transfer from argon ions to neutral titanium. In neon discharge, a strong selective excitation was observed of Ti II levels at ≈13.3–13.4 eV relative to the Ti I ground state. It was attributed to charge transfer from doubly charged titanium ions to neutral titanium, while the Ti++ions are produced by charge transfer and ionization of neutral titanium by neon ions. Cascade excitation is important for Ti II levels up to an energy of ≈13 eV relative to the Ti I ground state, both in argon and neon discharges.
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