Coulomb dynamics of ion bunches in multi-reflection electrostatic traps

Bolotskikh, P.A.; Grinfeld, Dmitry; Makarov, Alexander; Monastyrskiy, Mikhail

doi:10.1016/j.nima.2010.12.170

Cited by 16 publications

(8 citation statements)

References 11 publications

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“…To evaluate the effect of ion-ion interaction [49][50][51] on the performance of the MR-ToF device, numerical and experimental investigations are under way.…”

Section: Discussionmentioning

confidence: 99%

On-line separation of short-lived nuclei by a multi-reflection time-of-flight device

Wolf

Beck

Blaum

et al. 2012

Nuclear Instruments and Methods in Physics Research Section A:

129

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a b s t r a c tA multi-reflection time-of-flight (MR-ToF) mass analyzer has been integrated into ISOLTRAP, the precision mass spectrometer for on-line mass determinations of short-lived nuclides at ISOLDE/CERN. The new instrument improves ISOLTRAP by providing a fast separation of isobaric contaminant species as well as subsequent ion selection using the fast Bradbury-Nielsen gate. Suppression ratios of up to 10 4 and mass-resolving powers of over 10 5 have been reached in off-line experiments. Preliminary data from on-line applications illustrate the benefit and performance of the device and its potential in the context of the ISOLTRAP setup.

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“…To evaluate the effect of ion-ion interaction [49][50][51] on the performance of the MR-ToF device, numerical and experimental investigations are under way.…”

Section: Discussionmentioning

confidence: 99%

On-line separation of short-lived nuclei by a multi-reflection time-of-flight device

Wolf

Beck

Blaum

et al. 2012

Nuclear Instruments and Methods in Physics Research Section A:

129

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“…Our first attempt to simulate the ion cloud dynamics in Wollnik's ion trap was published some years ago. 19 The space-charge-induced synchronization (the selfbunching effect) suppresses deviations from the isochronous motion and prevents the ion beam from diverging. Again, at first glance, this effect plays a positive role in mass spectrometry by keeping identical ions together during multiple oscillations.…”

Section: Introductionmentioning

confidence: 99%

Space-Charge Effects in An Electrostatic Multireflection Ion Trap

Grinfeld

Giannakopulos

Kopaev

et al. 2014

Eur J Mass Spectrom (Chichester)

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The multireflection ion traps with isochronous properties offer a Lot of opportunities for time-of-flight mass spectrometry by elongation of the ion path, thus preserving the compact dimensions of an instrument. We have built and tested a two-mirror linear trap that provides at least 80,000 mass-resolving power. Although the mass resolution appears promising, there are substantial limitations that arise from Coulomb interactions of the trapped ions. Among these, the mutual repulsion of ions with same or close mass-to-charge ratios appears dominant, resulting in counterintuitive motion synchronization. The self-bunching and coalescence effects are also examined by numerical simulation.

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“…the phenomenon that in spite of their repulsing Coulomb interaction the ions do not spread out buton the contrary -form rather short pulses. Similar to the "peak coalescence" effect observed in Fourier-Transform Ion Cyclotron Resonance (FT-ICR) mass spectrometry [46][47][48] "selfbunching" can lead to a merging of signals of different ion species [49]. …”

Section: Mr-tof Studies At Greifswaldmentioning

confidence: 88%

Isobar separation and precision mass spectrometry of short-lived nuclides with a multi- reflection time-of-flight analyzer

Schweikhard

2014

Proceedings of 10th Latin American Symposium on Nuclear Physics and Applications — PoS(X LASNPA)

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Multi-Reflection Time-of-Flight Mass Spectrometry (MR-ToF MS) is a technique that hasrecently been introduced to nuclear physics research. The method is reviewed and several examples from ISOLTRAP at ISOLDE/CERN are given that illustrate its power and usefulness. Initially built for fast separation of the ions of interest from abundant contaminations in order to allow precision mass spectrometry, which was demonstrated in the case of 82 Zn, ISOLTRAP's multi-reflection time-of-flight mass spectrometer also succeeded in measuring the previously unknown mass values of 53 Ca and 54 Ca. In addition, proof-of-principle experiments have been performed which demonstrate further applications where fast and high-resolution separation of ions of interest from mixtures with high abundances of contamination species is required. Furthermore, in an off-line setup MR-ToF MS is explored with respect to space-charge effects in order to find the limits of the ion abundances that can be handled. The phenomena observed include peak coalescence in the time-of-flight spectra and different distributions of the kinetic energies of the stored ion species.

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Coulomb dynamics of ion bunches in multi-reflection electrostatic traps

Cited by 16 publications

References 11 publications

On-line separation of short-lived nuclei by a multi-reflection time-of-flight device

On-line separation of short-lived nuclei by a multi-reflection time-of-flight device

Space-Charge Effects in An Electrostatic Multireflection Ion Trap

Isobar separation and precision mass spectrometry of short-lived nuclides with a multi- reflection time-of-flight analyzer

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