Soft-landing deposition of mass-separated radioactive isotopes

Laurens, C.R.; Venema, Liesbeth; Kemerink, G. J.; Niesen, L.

doi:10.1016/s0168-583x(97)00361-3

Cited by 9 publications

(3 citation statements)

References 9 publications

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“…36 Indium has also been soft-landed on Cu(001) at 10 eV deposition energy. 110 Silver ions have also been landed on HOPG, showing different size distributions on steps vs. terraces of the surface. 111 These results are similar to those mentioned previously for Ag n deposited on Pt (111) surfaces, where trapping of Ag ions became possible, although the deposition occurred at a higher energy ($500 eV) than the main focus of this review.…”

Section: Metal Clustersmentioning

confidence: 99%

Soft-landing preparative mass spectrometry

Verbeck

Hoffmann

Walton

2012

Analyst

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Preparative mass spectrometry has become a diverse field that covers the spectrum of kinetic energy deposition. Of these methods, soft-landing mass spectrometry has many fundamental properties, which make it an advantageous technique for ion isolation and deposition. Its definition implies the preservation of ionic structural integrity after landing, which ensures the structure-function relationship of a molecule remains intact. Here the focus is on the instruments and applications of studying ion-surface landing in the hyperthermal and thermal kinetic energy regimes. Soft-landing preparative mass spectrometry covers the breadth of mass spectrometric ionization sources, instrumental configurations, and molecular families. Due to the diverse nature of soft landing, and to maximize readability, this review has been organized according to instrumental considerations and molecular families, with a discussion of theoretical work at the end.

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Section: Metal Clustersmentioning

confidence: 99%

Soft-landing preparative mass spectrometry

Verbeck

Hoffmann

Walton

2012

Analyst

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“…This characteristic creates the potential for the ions impinging on the detector array to be selectively harvested. Thus, the array detector could be replaced by a series of soft-landing sites (23)(24)(25)(26)(27) for efficient ion collection and release. This arrangement would enable the collection of individual isotopes of atoms or compounds, different mass forms of biomolecules, and physical separation of very large biostructures.…”

Section: Where Collection Of Ions Physically Separated By M/z Is Soughtmentioning

confidence: 99%

Distance-of-Flight Mass Spectrometry: A New Paradigm for Mass Separation and Detection

Enke

Ray

Graham

et al. 2012

Annual Rev. Anal. Chem.

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Distance-of-flight mass spectrometry (DOFMS) offers the advantages of physical separation of ions, array detection of ions, focusing of initial ion energy, great simplicity, and a truly unlimited mass range. DOFMS instrumentation is similar to that of time-of-flight mass spectrometry (TOFMS) and shares its ion-source versatility, batch analysis, and rapid spectral-generation rate. With constant-momentum ion acceleration and an ion mirror, there is a time at which ions of all mass-to-charge values are energy focused at their particular distances along the flight path. A pulsed field orthogonal to the flight path drives the ions to reach the detector array at this specific time. Results from a 0.29-m proof-of-principle instrument verify the theoretically predicted energy focus and demonstrate how the range of mass-to-charge values that impinge on the detector array can be readily changed. DOFMS could be combined sequentially with TOFMS to enable simultaneous scanless tandem mass spectrometry.

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“…In this Letter we present the results of our perturbed angular correlation studies and molecular dynamics (MD) simulations. The technical aspects of the soft-landing deposition method will be discussed in a second paper [8].…”

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confidence: 99%

Soft-Landing Ion Deposition of Isolated Radioactive Probe Atoms on Surfaces: A Novel Method

et al. 1997

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We present a method to deposit a wide range of radioactive probe atoms on surfaces, without introducing lattice damage or contaminating the surface with other elements or isotopes. In this method, the probe atoms are mass separated using an isotope separator, decelerated to 5 eV, and directly deposited on the surface. The method allows for performing hyperfine interactions experiments using trace amounts of radioactive probes located at surfaces and interfaces. The characteristics of the deposition method were studied by performing perturbed angular correlation experiments on the system In on Cu(17,1,1). The results are in agreement with molecular dynamics simulations of the deposition process. The potential of this novel technique is briefly discussed.[S0031-9007(97)03222-5]

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Soft-landing deposition of mass-separated radioactive isotopes

Cited by 9 publications

References 9 publications

Soft-landing preparative mass spectrometry

Soft-landing preparative mass spectrometry

Distance-of-Flight Mass Spectrometry: A New Paradigm for Mass Separation and Detection

Soft-Landing Ion Deposition of Isolated Radioactive Probe Atoms on Surfaces: A Novel Method

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