Search results for "ISOLTRAP"

showing 4 items of 64 documents

Cluster calibration in mass spectrometry: laser desorption/ionization studies of atomic clusters and an application in precision mass spectrometry.

2003

For accurate mass measurements and identification of atomic and molecular species precise mass calibration is mandatory. Recent studies with laser desorption/ionization and time-of-flight analysis of cluster ion production by use of fullerene and gold targets demonstrate the generation of atomic clusters for calibration purposes. Atomic ion results from the Penning trap mass spectrometer ISOLTRAP, in which a carbon cluster ion source has recently been installed, are presented as an application in the field of precision mass spectrometry.

Static secondary-ion mass spectrometryChemistryAnalytical chemistryMass spectrometryBiochemistryISOLTRAPIon sourceAtomic massAnalytical ChemistrySecondary ion mass spectrometryPhysics::Atomic and Molecular ClustersPhysics::Atomic PhysicsTime-of-flight mass spectrometryAtomic physicsHybrid mass spectrometerAnalytical and bioanalytical chemistry
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Laser desorption/ionization cluster studies for calibration in mass spectrometry

2003

Precise mass calibration is mandatory in many fields of mass spectrometry. We have performed laser desorption/ionization cluster studies with a MALDI-TOF mass spectrometer on gold and fullerene targets to produce atomic clusters. These investigations demonstrate that clusters are ideally suited for this purpose. Pulsed N 2 -laser and Nd:YAG-laser ablation was used to produce positively as well as negatively charged clusters. Earlier observations of dianionic metal clusters are confirmed. First results from the tandem Penning trap mass spectrometer ISOLTRAP using carbon clusters as mass references show how carbon clusters can be applied to precision mass spectrometry by providing absolute ma…

Static secondary-ion mass spectrometryMaterials scienceMass spectrometryISOLTRAPAtomic and Molecular Physics and OpticsAtomic massPhysics::Atomic and Molecular ClustersMass spectrumPhysics::Atomic PhysicsAtomic physicsTime-of-flight mass spectrometryNuclear ExperimentQuadrupole mass analyzerHybrid mass spectrometerThe European Physical Journal D - Atomic, Molecular and Optical Physics
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Towards high-accuracy mass spectrometry of highly charged short-lived ions at ISOLTRAP

2006

Dedicated to H.-J. Kluge on the occasion of his 65th birthday anniversary - Jürgen Kluge Special Issue; Multiply charged ions of stable xenon isotopes from a plasma ion source have been mass-selected by the on-line mass separator ISOLDE/CERN and delivered to the triple-trap mass spectrometer ISOLTRAP. The doubly charged ions that survived the charge-exchange processes during bunching and ion preparation were transferred to a precision Penning trap for mass determination. Mass values were obtained for the isotopes with mass numbers A=126,129,130,136. They are consistent with previous results except for the case of $^{126}Xe$ where a significant deviation from the literature value was found. …

atomic masses[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]Thermal ionization mass spectrometryMass spectrometry01 natural sciencesISOLTRAPhistory of atomic massesNuclear physics0103 physical scienceshistory of mass spectrometryPhysical and Theoretical ChemistryNuclear Experiment010306 general physicsInstrumentationQuadrupole mass analyzerSpectroscopy010308 nuclear & particles physicsChemistryNuclear binding energiesHighly charged ionevaluation of atomic massesCondensed Matter PhysicsPenning trapIon sourceAtomic physicsHybrid mass spectrometerInternational Journal of Mass Spectrometry
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Penning-trap mass measurements on 92, 94-98, 100Mo with JYFLTRAP

2012

Penning-trap measurements on stable 92, 94-98, 100Mo isotopes have been performed with relative accuracy of \ensuremath1⋅10−8\ensuremath1⋅10−8 with the JYFLTRAP Penning-trap mass spectrometer by using 85Rb as a reference. The Mo isotopes have been found to be about 3keV more bound than given in the Atomic Mass Evaluation 2003 (AME03). The results confirm that the discrepancy between the ISOLTRAP and JYFLTRAP data for 101-105Cd isotopes was due to an erroneous value in the AME03 for 96Mo used as a reference at JYFLTRAP. The measured frequency ratios of Mo isotopes have been used to update mass-excess values of 30 neutron-deficient nuclides measured at JYFLTRAP. peerReviewed

nuclear spectroscopyPhysicsNuclear and High Energy PhysicsMass excessIsotopeaccelerator-based physicsPenning trapMass spectrometrykiihdytinpohjainen fysiikkaISOLTRAPAtomic massNuclear physicsydinrakennenuclear structureydinspektroskopiaNuclear fusionNuclideAtomic physicsydinfysiikkaThe European Physical Journal A
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