Young-Type Interferences with Electrons by François Frémont

Author:François Frémont
Language: eng
Format: epub
Publisher: Springer Berlin Heidelberg, Berlin, Heidelberg

3.5.2 Interpretation of the Spectra

Three typical spectra are presented in Fig. 3.69a for the three detection angles of 0°, 5° and 10°, with respect to the incident beam direction. In addition to the main peaks associated with the deexcitation of 2s2 1S, 2p2 1D and 2s2p 1P configurations, located at 33.3, 35.3 and 35.5 eV, respectively, pronounced shoulders in the 2s2 1S line shape are observed. At 5°, these become nearly equal in intensity to the main part of the peak.

Fig. 3.69Experimental (a) and calculated (b) electron spectra for 10 keV He+ + He at emission angles of 0°, 5° and 10°. Theory: full curve, calculation using Coulomb path-interferences; dashed curve, calculation where scattering around the “near side” of the projectile is considered; dot-dashed curve, calculation at 0° using the OR model

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