Energy transfer in collisions of excited Ar(3P0.2) metastable atoms with H(2S) atoms. II. Lyman-α emission profile |
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Authors: | Michael AA Clyne Michael C Heaven Kyle D Bayes Penelope B Monkhouse |
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Institution: | Department of Chemistry, Queen Mary College, Mile End Road, London E1 4NS, UK |
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Abstract: | Spectra of the Lyman-α emission resulting from the Ar(4s, 3P2.0) + H(Is, 2S) interaction have been recorded. The emission line profile is essentially rectangular with a full width of 13 pm. These results show that excited H(n = 2) atoms are formed in the reaction, with nearly all the excess energy (1.34 eV) appearing as kinetic energy of the hydrogen atom. Lyman-α emission profiles also have been obtained from microwave discharge plasmas in argon and helium, containing traces of hydrogen; these profiles are compared with those from the Ar(3P2.0) + H(2S) system. |
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