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Energy loss of 18 keV electrons in gaseous T and quench condensed D films

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Abstract:

Measurements of the energy loss of fast electrons at an energy of 18 keV have been performed on molecules of hydrogen isotopes, gaseous T 2 and frozen D 2 . Whereas in the case of gaseous T 2 the values of total inelastic cross-section ( cm2 for E = 18.6 keV), average energy loss ( eV) and peak position of the energy loss spectra ( eV) agree well with the expectations, the corresponding values for quench condensed D 2 differ significantly from the ones for gaseous T 2 . We observe a significant lower total inelastic cross-section ( cm2, for E = 18.6 keV) larger average energy loss ( eV) and higher peak position ( eV). These differences may be interpreted in terms of changes of the final state spectrum. A CI calculation for a D 2 cluster shows indeed a clear shift of the excited states in agreement with the observation.

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Authors and Affiliations

  1. Institute for Nuclear Research, Academy of Sciences of Russia, 60th October Anniversary Prospect 7a, 117312 Moscow, Russia, , , , , , RU

    V.N. Aseev, A.I. Belesev, A.I. Berlev, E.V. Geraskin, O.V. Kazachenko, Yu.E. Kuznetsov, V.M. Lobashev, R.P. Ostroumov, N.A. Titov, S.V. Zadorozhny & Yu.I. Zakharov

  2. Institute of Physics, Joh. Gutenberg University, 55099 Mainz, Germany, , , , , , DE

    J. Bonn, B. Bornschein, L. Bornschein, E.W. Otten, M. Przyrembel & Ch. Weinheimer

  3. Max-Planck-Institute for Quantum Optics, Theory Group, 85748 Garching, Germany, , , , , , DE

    A. Saenz

Authors
  1. V.N. Aseev
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  2. A.I. Belesev
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  3. A.I. Berlev
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  4. E.V. Geraskin
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  5. O.V. Kazachenko
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  6. Yu.E. Kuznetsov
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  7. V.M. Lobashev
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  8. R.P. Ostroumov
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  9. N.A. Titov
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  10. S.V. Zadorozhny
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  11. Yu.I. Zakharov
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  12. J. Bonn
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  13. B. Bornschein
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  14. L. Bornschein
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  15. E.W. Otten
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  16. M. Przyrembel
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  17. Ch. Weinheimer
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  18. A. Saenz
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Received 24 August 1999

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Aseev, V., Belesev, A., Berlev, A. et al. Energy loss of 18 keV electrons in gaseous T and quench condensed D films. Eur. Phys. J. D 10, 39–52 (2000). https://doi.org/10.1007/s100530050525

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  • DOI: https://doi.org/10.1007/s100530050525

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