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Development of a threshold positron spectrometer
Lopes, M. C. A.; Gordo, P. M.; Lima, A. P. de; Mohallem, J. R.We introduce a new positron spectroscopy experimental technique that we call threshold positron spectroscopy, by analogy with its similar threshold photoelectron spectroscopy. An apparatus that is being developed to explore this technique is described in this work. ; http://www.sciencedirect.com/science/article/B6TVT-4JW7WPW-3/1/a800a67732e0d75f39e5bc6014315e04
Excitação eletrônica das moléculas de metacrilato de metila e estireno na regiã...
Rocco,M. L. M.; Souza,G. G. B. de; Lopes,M. C. A.; Lucas,C. A.Angle-resolved electron energy-loss spectra have been measured for the methyl methacrylate (MMA) and styrene molecules in the 0 - 50 eV energy range. The spectra have been obtained at 1 keV incident energy, with an energy resolution of 0.8 eV and covering an angular range of 2.0 to 7.0 degrees. Within our knowledge, this is the first gas-phase excitation spectrum for MMA and styrene in this energy range. The sp...
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