Autor(es): Cardoso, Aldo S. ; Pontes, Frederico C. ; Souza, Gerardo Gerson Bezerra de ; Mundim, Maria Suely Pedrosa ; Cardoso, Aldo S. ; Pontes, Frederico C. ; Souza, Gerardo Gerson Bezerra de ; Mundim, Maria Suely Pedrosa
Data: 2011
Origem: Oasisbr
Assunto(s): Time-of-flight mass spectrometer; Electron ionization; multiply-charged ions of argon
p. 315-319,May/June.
Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2011-12-19T11:03:44Z No. of bitstreams: 1 a06v24n3.pdf: 73582 bytes, checksum: bdd74b4dba961d1d39af298ebbd955e9 (MD5)
Made available in DSpace on 2011-12-19T11:03:44Z (GMT). No. of bitstreams: 1 a06v24n3.pdf: 73582 bytes, checksum: bdd74b4dba961d1d39af298ebbd955e9 (MD5) Previous issue date: 2001
A TIME-OF-FLIGHT MASS SPECTROMETER FOR HIGH ENERGY (0.5 – 1.0 KEV) ELECTRON IONIZATION OF GASES. 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.
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