Isochronous mass spectrometry in an electrostatic storage ring
REVIEW OF SCIENTIFIC INSTRUMENTS(2022)
摘要
For sensitive studies of molecular ions in electrostatic storage rings, the exact knowledge of the isobaric composition of stored beams from a variety of ion sources is essential. Conventional mass-filtering techniques are often inefficient to resolve the beam components. Here, we report the first isochronous mass spectrometry in an electrostatic storage ring, which offers a high mass resolution of & UDelta;m/m < 1 x 10(-5) even for heavy molecular species with m > 100 u and uncooled ion beams. Mass contaminations can be resolved and identified at relative fractions down to 0.02%. (C) 2022 Author(s).
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关键词
isochronous mass spectrometry,storage
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