Atomic Clusters and Ion Cyclotron Resonance Mass Spectrometry: A Fruitful Combination

Schweikhard, L.; Blaum, Klaus; Herlert, A.; Marx, G.

doi:10.1255/ejms.744

Cited by 17 publications

(14 citation statements)

References 52 publications

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“…A count-rate class analysis [21] was performed and the cyclotron frequency was extrapolated to one detected ion per cycle, including the detector efficiencies, to minimize systematic cyclotron-frequency shifts due to contaminant ions and ion-ion interaction [19,22]. The magnetic-field strength at the time of the measurement of the ion of interest was interpolated linearly from reference-ion cyclotron-frequency measurements before and after that of the ion of interest.…”

Section: Experimental Setup and Methodsmentioning

confidence: 99%

High-precision mass measurements of 203-207Rn and 213Ra with SHIPTRAP

et al. 2013

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General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal 205 Rn and 213 Ra were significantly reduced. The results are relevant for the investigation of the nuclear shell structure between N = 82 and N = 126. As an indicator of structural changes the two-neutron separation energies S 2n (Z, N) have been studied.

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Section: Experimental Setup and Methodsmentioning

confidence: 99%

High-precision mass measurements of 203-207Rn and 213Ra with SHIPTRAP

et al. 2013

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“…Cluster ions are ideally suited for the calibration of mass spectrometers and for consistency checks and studies of systematic uncertainties in high-precision mass determination [46,65,66] (see also sect. 2.6).…”

Section: Ion Source For Carbon Clustersmentioning

confidence: 99%

“…This shift increases with the number of stored ions. Such effects have been investigated in the preparation trap of ISOLTRAP for 39 K and 41 K ions [66] provided by the off-line alkali surface ion source. After isobaric cleaning in the preparation trap, which lasts between 30 ms and several 100 ms depending on the required resolving power and the half-life of the radionuclide under investigation, the purified ion bunch is transported to the precision Penning trap.…”

Section: The Preparation Penning Trap Of Isoltrapmentioning

confidence: 99%

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ISOLTRAP: An on-line Penning trap for mass spectrometry on short-lived nuclides

et al. 2008

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Abstract. ISOLTRAP is a Penning trap mass spectrometer for high-precision mass measurements on short-lived nuclides installed at the on-line isotope separator ISOLDE at CERN. The masses of close to 300 radionuclides have been determined up to now. The applicability of Penning trap mass spectrometry to mass measurements of exotic nuclei has been extended considerably at ISOLTRAP by improving and developing this double Penning trap mass spectrometer over the past two decades. The accurate determination of nuclear binding energies far from stability includes nuclei that are produced at rates less than 100 ions/s and with half-lives well below 100 ms. The mass-resolving power reaches 10 7 corresponding to 10 keV for medium heavy nuclei and the uncertainty of the resulting mass values has been pushed down to below 10 −8 . The article describes technical developments achieved since 1996 and the present performance of ISOLTRAP.

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“…Besides performing mass measurements, the Penning trap can also be used for mass purification [8] and thus contamination suppression for ions with typical half-lives of several 100ms and above. However, as more challenging scenarios are addressed, this method reaches its limits with respect to the ions' intensity ratios [9] and the required duration of ion separation. In order to speed up and to enhance the purification, isobaric mass separation by use of a multi-reflection time-of-flight (MR-ToF) mass analyzer [10] has recently been added to the experimental event sequence [11].…”

Section: Introductionmentioning

confidence: 99%

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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Atomic Clusters and Ion Cyclotron Resonance Mass Spectrometry: A Fruitful Combination

Cited by 17 publications

References 52 publications

High-precision mass measurements of 203-207Rn and 213Ra with SHIPTRAP

High-precision mass measurements of 203-207Rn and 213Ra with SHIPTRAP

ISOLTRAP: An on-line Penning trap for mass spectrometry on short-lived nuclides

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

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