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PACS. 34. Atomic and molecular collision processes and interactions - 34.70.+e Charge transfer (1)
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Digitale Medien

Radiative electron capture: a tool for structure studies of heavy few-electron ions (1991)

Mokler, P. H. ; Stöhlker, Th. ; Kozhuharov, C. ; [weitere]

Springer

The European physical journal 21 (1991), S. 197-200

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ISSN: 1434-6079

Schlagwort(e): 32.30.Rj ; 34.70. + e

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract Radiative Electron Capture (REC) in collisions of hydrogenic germanium ions with hydrogen is measured for projectile energies between 4 and 12 MeV/u. Extrapolating the resulting centroid energies of the K-REC radiation to zero collision velocity theK-binding energy in helium-like germanium-ions is determined. The value compares well with the theoretical prediction. REC in atomic collisions is advertised as a spectroscopic tool for structure investigations of very heavy few-electron projectiles.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01426372

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Digitale Medien

Radiative electron capture into continuum in relativistic collisions of bare C ions with solid matter (1998)

Bednarz, G. ; Warczak, A. ; Tawara, H. ; [weitere]

Springer

The European physical journal 4 (1998), S. 271-277

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ISSN: 1434-6079

Schlagwort(e): PACS. 34. Atomic and molecular collision processes and interactions - 34.70.+e Charge transfer

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract: Continuum X-rays emitted from Be- and C-targets bombarded with 75-290 MeV/u C6+ ions were observed with an HPGe detector placed at 90 to the beam direction. In all spectra two components could be clearly distinguished: Radiative Electron Capture into Continuum (RECC) forming a characteristic edge, and Secondary Electron Bremsstrahlung (SEB) which dominates at high photon energies. The shape of the spectra was compared to a theoretical description. A special emphasis was given to the details of the RECC edge. It has been found that at the highest projectile energy of 290 MeV/u, in opposite to the lower beam energies, the detailed structure of this edge cannot be reproduced satisfactory within the approach applied.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/s100530050209

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Resonant electron transfer andL-shell excitation at 3.6 MeV/u62Sm q+ → Xe collisions,q=34−52 (1986)

Schönfeldt, W. A. ; Mokler, P. H. ; Hoffmann, D. H. H. ; [weitere]

Springer

The European physical journal 4 (1986), S. 161-176

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ISSN: 1434-6079

Schlagwort(e): 3470 ; 3450H

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract For 3.6 MeV/u Sm q+ projectiles a hump in the projectile (L l +L α) x-ray emission cross section is seen as a function of charge stateq for highq with 46≦q≦52 (closed incomingL shell). This hump is attributed to the Resonant electron Transfer from the Xe target atom with simultaneous Excitation of anL 3-shell electron to theM shell. The cross section for thisL 3-shell RTE process has values up to 2·10−19 cm2, which is seen in single spectra already. To verify the existence of theL-shell RTE process for the studied collision system, extensive calculations have been carried out. Especially theL 3-shell fluorescence yield for the radiative stabilization process in the highly-charged projectile has been considered. Our calculatedq-dependent cross sections for the RTE process support the given interpretation.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01437354

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