Saturation in the K-shell excitation of 120 MeV S14+ ions in interaction with gas targets

U. Tiwari, A. K. Saha, B. B. Dhal, L. C. Tribedi, M. B. Kurup, P. N. Tandon, L. Gulyas

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Abstract

In contrast to the first Born approximation predicted quadratic enhancement, saturation has been observed in the excitation cross-sections of 120 MeV S14+ ions in interaction with gas targets. The measured cross-sections agree with the theoretical calculations in the framework of the Schwinger variational principle. The symmetric eikonal CDW approximation, however, underestimates the cross-sections with the heavier target atoms.

Original languageEnglish
Pages (from-to)393-395
Number of pages3
JournalPhysica Scripta T
Volume80
Issue numberB
Publication statusPublished - Dec 1 1999

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

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    Tiwari, U., Saha, A. K., Dhal, B. B., Tribedi, L. C., Kurup, M. B., Tandon, P. N., & Gulyas, L. (1999). Saturation in the K-shell excitation of 120 MeV S14+ ions in interaction with gas targets. Physica Scripta T, 80(B), 393-395.