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Erlangen 2001 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 9: Postersitzung: Instrumentation und Anwendungen

HK 9.40: Poster

Dienstag, 20. März 2001, 10:30–12:45, R

Soft X-ray projectile radiation of Neon interacting with solids — •F.B. Rosmej1, Y. Yamazaki2, Y. Kanai2, Y. Iwai2, Y. Morischita2, M. Wada2, H. Ohyama2, T. Kambara2, and Y. Nakai21Universite de Provence, Marseilles, France — 2RIKEN, Atomic Physics Laboratory, Japan

We have setup a high resolution Bragg spectrometer to observe the soft X-ray radiation of slow (E = 90 keV) neon projectiles when interacting with matter. Two dimensional curved crystal technique with high luminosity allowed to receive spectra in a reasonable exposure time. When focussing hydrogen like neon ions onto a massive metal plate the He-like resonance and intercombination lines were observed. At longer wavelengths, group formation of soft X-ray emission is visible. Atomic data calculations show, that these transitions steem from inner-shell transitions of hollow ions of various charge states. Resolved satellite transitions near the He-like resonance line, however, suggest that transitions with higher order spectator electrons play an important role: Their intensity is comparable with the resonance line emission and, therefore, influences on the analysis of the average projectile charge state.

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