1992
DOI: 10.1016/s1049-250x(08)60173-1
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Cross-Section Measurements for Electron Impact on Excited Atomic Species

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Cited by 44 publications
(11 citation statements)
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“…Atoms and molecules in excited states are referred to as being 'metastable', when their tendency to return to the electronic ground state is strongly reduced, often because electric dipole transitions to lower-lying states are formally forbidden. This results in natural lifetimes longer than 100 µs and thus allows for the study of metastables in time-of-flight experiments [1][2][3]. Atoms and molecules in metastable states play an important role in the Earth's upper atmosphere, where they are formed through collisions with photoelectrons and participate in various (de-)excitation and ionization cycles [4][5][6].…”
Section: Introductionmentioning
confidence: 99%
“…Atoms and molecules in excited states are referred to as being 'metastable', when their tendency to return to the electronic ground state is strongly reduced, often because electric dipole transitions to lower-lying states are formally forbidden. This results in natural lifetimes longer than 100 µs and thus allows for the study of metastables in time-of-flight experiments [1][2][3]. Atoms and molecules in metastable states play an important role in the Earth's upper atmosphere, where they are formed through collisions with photoelectrons and participate in various (de-)excitation and ionization cycles [4][5][6].…”
Section: Introductionmentioning
confidence: 99%
“…In this study, the incident energy θ relative to the incident electron direction. The ejected electron energy is 1 5 eV E = . Theory: full curve (Green): Present first born result, dash curve (Red): 2P-state first born result [20] and dash dotted curve (Blue): 2S-state first born result [17].…”
Section: Resultsmentioning
confidence: 99%
“…Triple differential cross sections (TDCS) for ionization of atomic hydrogen atoms by electron impact at metastable 3P-state are obtained by using Equation (11). The incident energy is 250 eV, the scattering angle is 2 9 θ =  and the ejected electron energy is 1 scattering theories. In the future calculations, other kinematic conditions or other atomic species will also be interesting and significant.…”
Section: Resultsmentioning
confidence: 99%
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