Fermi-shuttle acceleration of electrons in ion-matter interaction

B. Sulik, N. Stolterfoht, R. Hellhammer, Z. Pešić, Cs Koncz, K. Tőkési, D. Berényi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Large electron yields, compared to theoretical predictions, have often been observed in the high-energy part of the electron spectra in collisions of energetic ions with atomic, molecular or solid targets. The relative enhancement of the electron emission yield at high energies can be especially strong in ion-solid collisions. In this work, following a brief overview, recent experimental evidences are presented for Fermi-shuttle type accelerating electron scattering sequences in ion-atom collisions. Signatures for double (projectile-target, P-T), triple (projectile-target-projectile, P-T-P) and quadruple (P-T-P-T) scattering sequences have been found in different collision systems. Our new results indicate the presence of even higher-order scattering contributions in the collisions of few keV energy N+ ions with inert gas atoms. The observations support that high-energy electrons produced by accelerating scattering sequences may play a significant role in ion-solid collisions.

Original languageEnglish
Pages (from-to)32-44
Number of pages13
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume212
Issue number1-4
DOIs
Publication statusPublished - Dec 2003

Fingerprint

Projectiles
projectiles
Ions
collisions
Electrons
Scattering
ions
electrons
interactions
Noble Gases
Atoms
scattering
Electron scattering
Electron emission
Inert gases
high energy electrons
electron emission
atoms
energy
rare gases

Keywords

  • Fermi-shuttle acceleration
  • Ionization
  • Multiple electron scattering

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

Fermi-shuttle acceleration of electrons in ion-matter interaction. / Sulik, B.; Stolterfoht, N.; Hellhammer, R.; Pešić, Z.; Koncz, Cs; Tőkési, K.; Berényi, D.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 212, No. 1-4, 12.2003, p. 32-44.

Research output: Contribution to journalArticle

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AU - Koncz, Cs

AU - Tőkési, K.

AU - Berényi, D.

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