Journal: | Quimica nova |
Database: | PERIÓDICA |
System number: | 000196203 |
ISSN: | 0100-4042 |
Authors: | Cardoso, Aldo S1 Pontes, Frederico C Souza, Gerardo Gerson B. de Mundim, Maria Suely Pedrosa |
Institutions: | 1Universidade Federal do Rio de Janeiro, Instituto de Quimica, Rio de Janeiro. Brasil 2Universidade Federal da Bahia, Instituto de Física, Salvador, Bahia. Brasil |
Year: | 2001 |
Season: | May-Jun |
Volumen: | 24 |
Number: | 3 |
Pages: | 315-319 |
Country: | Brasil |
Language: | Portugués |
Document type: | Artículo |
Approach: | Experimental, descriptivo |
English abstract | A simple and inexpensive time-of-flight mass spectrometer, dedicated to the study of gas-phase ionization processes induced by high energy electrons (0.5 – 3.0 keV), is described. The spectrometer design is based on the Wiley-McLaren principle, with a total length of about 18 cm. As a demonstration of the performance of the apparatus, mass spectra for Ar, CH4, CO2, and SF6, obtained at 1 keV electron energy, are presented |
Disciplines: | Física y astronomía, Química |
Keyword: | Física atómica y molecular, Química analítica, Ionización, Gases, Ionización de gases, Argón, Pincipio Wiley-McLaren, Espectrómetro de masas |
Keyword: | Physics and astronomy, Chemistry, Atomic and molecular physics, Analytical chemistry, Ionization, Gases, Ionization of gases, Argon, Wiley-McLaren principle, Mass spectrometer |
Full text: | Texto completo (Ver HTML) |