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On the Problem of the Ion Energy Loss in Thin Absorbers

Author

Listed:
  • Minárik Stanislav
  • Riedlmajer Róbert

    (Slovak University Of Technology In Bratislava, Faculty Of Materials Science And Technology In Trnava, Advanced Technologies Research Institute, Ulica Jána Bottu 2781/25, 917 24 Trnava, Slovak Republic)

Abstract

Exact determination of energy loss of ion in materials is still a non-trivial task because of relatively complicated changes of the ion`s stopping power S(E) during transport of the probing ion inside the material structure. Energy loss of ion in the material structure always depends on the current value of continually decreasing energy of the ion, indeed. A purely theoretical approach can be applied to the energy loss calculation in some typical cases. Average energy loss of ion can be determined by means of the Bethe-Bloch analytical theory (1-6) (in high velocity region) and the Lindhard-Scharff-Schiøtt (LSS) theory (7-10) (in low velocity region). Currently, there is no acceptable exact theory to determine the energy loss of ion in intermediate-velocity region (11) and experimental data must be used in that case. Basically, only a finite number of discrete experimental data is always available. Therefore, if the problem how much energy the projectile ion loses in a certain distance travelled is solved, the modelling of function S(E) based on some acceptable assumptions must be applied.

Suggested Citation

  • Minárik Stanislav & Riedlmajer Róbert, 2018. "On the Problem of the Ion Energy Loss in Thin Absorbers," Research Papers Faculty of Materials Science and Technology Slovak University of Technology, Sciendo, vol. 26(43), pages 17-24, September.
    • Handle: RePEc:vrs:repfms:v:26:y:2018:i:43:p:17-24:n:2
    DOI: 10.2478/rput-2018-0026
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