Details
| Original language | English |
|---|---|
| Pages (from-to) | 14-17 |
| Number of pages | 4 |
| Journal | International Journal of Mass Spectrometry |
| Volume | 432 |
| Publication status | Published - 20 Jul 2018 |
Abstract
The ion funnel is one of the key components for transferring ions from higher pressure into vacuum. While known for over twenty years and thoroughly analyzed by mathematical means and simulations, its working principle might be difficult to understand sometimes. In this work, we propose a simple thought experiment based on the centripetal force ions experience inside the ion funnel, which offers a simplistic explanation for the focusing force in an ion funnel. Our centripetal force model can predict the proportionalities of the resulting pseudopotential and should be a good didactical tool.
Keywords
- Centripetal force model, Focusing effect, Ion funnel
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Instrumentation
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Spectroscopy
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: International Journal of Mass Spectrometry, Vol. 432, 20.07.2018, p. 14-17.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A simple centripetal force model for explaining the focusing effect of ion funnels
AU - Allers, Maria
AU - Kirk, Ansgar T.
AU - Zimmermann, Stefan
N1 - Funding information: This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – ZI 1288/8-1 .
PY - 2018/7/20
Y1 - 2018/7/20
N2 - The ion funnel is one of the key components for transferring ions from higher pressure into vacuum. While known for over twenty years and thoroughly analyzed by mathematical means and simulations, its working principle might be difficult to understand sometimes. In this work, we propose a simple thought experiment based on the centripetal force ions experience inside the ion funnel, which offers a simplistic explanation for the focusing force in an ion funnel. Our centripetal force model can predict the proportionalities of the resulting pseudopotential and should be a good didactical tool.
AB - The ion funnel is one of the key components for transferring ions from higher pressure into vacuum. While known for over twenty years and thoroughly analyzed by mathematical means and simulations, its working principle might be difficult to understand sometimes. In this work, we propose a simple thought experiment based on the centripetal force ions experience inside the ion funnel, which offers a simplistic explanation for the focusing force in an ion funnel. Our centripetal force model can predict the proportionalities of the resulting pseudopotential and should be a good didactical tool.
KW - Centripetal force model
KW - Focusing effect
KW - Ion funnel
UR - http://www.scopus.com/inward/record.url?scp=85050126924&partnerID=8YFLogxK
U2 - 10.15488/4409
DO - 10.15488/4409
M3 - Article
AN - SCOPUS:85050126924
VL - 432
SP - 14
EP - 17
JO - International Journal of Mass Spectrometry
JF - International Journal of Mass Spectrometry
SN - 1387-3806
ER -