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US 7,009,175 B2Granted
Method for obtaining an output ion current
OwnerArmin Hansel, Armin Wisthalerinventors
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OwnerArmin Hansel, Armin Wisthalerinventors
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In a method for obtaining an output ion current substantially comprised of only a single ionic species, ions formed in the ionization of a source gas in an ionization region (A) and/or ions extracted from the ionization region (A) are allowed to react in a region (A, B, C), in which is located a source gas, until substantially only one or several source ionic species are present, which do not react with the source gas. To a reaction region (C) located outside of the ionization region (A) and in which ions of the one or several source ionic species are present, a reactant gas, differing from the source gas, is supplied, which reacts with the ions of the one or several source ionic species, and the ions of the one or several source ionic species are substantially converted into the single ionic species forming the output ion current.
Method for obtaining an output ion current substantially comprised of only a single ionic species, in which ions formed in the ionization of a source gas in an ionization region (A) and/or ions extracted from the ionization region (A) are allowed to react in a region (A, B, C) in which source gas is located, until substantially only one or several source ionic species are present, which do not react with the source gas, in which furthermore to a reaction region (C), located outside of the ionization region (A) and in which ions of the one or several source ionic species are present, a reactant gas, differing from the source gas, is supplied, which reacts with the ions of the one or several source ionic species, the ions of the one or several source ionic species being substantially converted into the single ionic species forming the output ion current.
Dependencies are inferred from the claim text.