Dissociative Excitation of Nitromethane Induced by Electron Impact in the Ultraviolet – Visible Spectrum |
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| Authors: | Dr Juraj Országh Dr Anita Ribar Dr Marián Danko Prof Dennis Bodewits Prof Štefan Matejčík Prof Wiesława Barszczewska |
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| Institution: | 1. Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University Bratislava, Mlynská dolina F2, Bratislava, 842 48 Slovakia;2. Physics Department, Leach Science Center, Auburn University, Auburn, Alabama, 36832 USA;3. Faculty of Exact and Natural Sciences, Siedlce University, 3 Maja 54, Siedlce, 08-110 Poland |
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| Abstract: | The excitation of nitromethane (CH3NO2), which is an important propellant and prototypic molecule for large class of explosives, has been investigated by electron impact and subsequent emission of photons in the UV-VIS spectral region between 300 nm and 670 nm. Emission spectrum of nitromethane was recorded at an electron energy of 50 eV. New dissociative excitation channels were observed through the appearance of different CH, CN, NH, OH and NO bands, and the Balmer series of atomic hydrogen. In addition, relative emission cross sections were recorded for the transitions of selected fragments. The emission spectrum was captured with significantly higher resolution in comparison to previous studies. |
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| Keywords: | electron impact fluorescence emission spectrum cross section dissociation nitromethane |
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