Detection
Noble gases analysis by static mass spectrometry Theory and instrumentation

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J6636 V1 Article

Detection


Noble gases analysis by static mass spectrometry Theory and instrumentation

Authors : Laurent ZIMMERMANN, David BEKAERT

Publication date: December 10, 2020 | Lire en français

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3. Detection

Ion detection in gas source mass spectrometry is based on four inseparable components:

  • the ionization yield of the species analyzed at the Nier source. This is low (a few percent) and depends on the setting of the source parameters seen previously (U 1 , U 2 , U moy , U R , I trap , U trap , etc.) and on the presence of other particles likely to compete with the analyzed element by capturing all or part of the electron flux emitted by the filament;

  • the transmission efficiency of the ions produced in the source to the collector(s) via the flight...

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