Um espectrometro de massas de tempo-de-voo para o estudo da ionizacao de amostras gasosas por eletrons rapidos (0,5 - 1,0 KEV)



Document title: Um espectrometro de massas de tempo-de-voo para o estudo da ionizacao de amostras gasosas por eletrons rapidos (0,5 - 1,0 KEV)
Journal: Quimica nova
Database: PERIÓDICA
System number: 000196203
ISSN: 0100-4042
Authors: 1


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:
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
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