Formation of NH fragments by electron impact dissociation of ammonia |
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| Affiliation: | 1. Department of Physics, Women University of Azad Jammu and Kashmir, Bagh, Pakistan;2. Department of Physics, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan;3. Department of Physics, Quaid-i-Azam University, 45320 Islamabad, Pakistan;4. Department of Physics, Faculty of Science, Jazan University, Jazan 45142, Saudi Arabia;5. Rafi M. Chaudhri Chair, Center for Advanced Studies in Physics, Government College University, 54000 Lahore, Pakistan |
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| Abstract: | Excitation functions of the NH(A 3Π-X 3Σ−, c 1Π-a1Δ) radiation following single-electron impact on ammonia were measured from 9 eV up to 160 eV. Several wavelength intervals of the NH emission spectrum were studied. For the A 3Π-X 3Σ− transition the excitation functions were found to vary with fragment rotation which reveals different dissociation mechanisms for slowly and rapidly rotating fragments. There is a strong indication that at higher impact energies a dissociation channel with simultaneous production of H(2s, 2p) atoms opens up. |
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