Výsledky vyhledávání - "H. J. Andrä"

Magnetic pulsed extraction of highly charged ions from a plateau ECRIS

Autor: H. J. Andrä, L. Müller, A. Heinen, H. W. Ortjohann

Publikováno v: Review of Scientific Instruments. 73:1140-1144

The afterglow is known to produce pulses of highly charged ions suited for injection to accelerator facilities. We tested a new technique of magnetic pulsed extraction (PUMAEX) in our plateau-ECR ion source PECRIS III. This source has a large resonan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::25053377f5c4b6eae79ba8ca042bd520
https://doi.org/10.1063/1.1427036

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Deconvolution of Auger electron spectra of hyperthermal highly charged ions at metal surfaces

Autor: J. Mrogenda, E. Reckels, H. J. Andrä

Publikováno v: Surface Science. 490:43-68

Using a Monte Carlo simulation of electron scattering near the jellium edge of metals, we investigate the spectra of energy loss of Auger electrons emitted in regions around the jellium edge. A deconvolution procedure allows to remove this background

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::01e47be955a040d2457c527d40c2dba9
https://doi.org/10.1016/s0039-6028(01)01213-4

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Spatially resolvedK-Auger emission of hyperthermal highly charged ions at an Al(111) surface

Autor: E. Reckels, J. Mrogenda, Jens Ducrée, H. J. Andrä

Publikováno v: Europhysics Letters (EPL). 48:672-678

Within the framework of a scattering model for electrons leaving the solid, the location of emission of Auger electrons ejected by highly charged H-like and He-like ions impinging on Al(111) can be determined when comparing the Auger electron spectra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac480cdaaa6f67d9f7dae625f8a91592
https://doi.org/10.1209/epl/i1999-00537-2

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Neutralization of hyperthermal multiply charged ions at surfaces: Comparison between the extended dynamical overbarrier model and experiment

Autor: Jens Ducrée, Uwe Thumm, H. J. Andrä

Publikováno v: Physical Review A. 60:3029-3043

Within a semiclassical model, we investigate the dynamic neutralization and relaxation of slow (E kin 100 eV) multiply charged ions which are reflected on metal surfaces. Special emphasis is devoted to nearsurface interaction mechanisms. Our model in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba0794f1932856debedc01c3d971fb77
https://doi.org/10.1103/physreva.60.3029

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