Lang, Maik ; O’Quinn, Eric ; Neuefeind, Jörg ; Trautmann, Christina (2020)
Characterization of radiation effects and ion tracks with spallation neutron probes.
In: Nuclear Physics News, 30 (1)
doi: 10.1080/10619127.2019.1676120
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Swift heavy ions are typically defined as high-mass charged particles of kinetic energy above ∼1 MeV per nucleon (MeV/u). In this regime, the energy deposition of the ions is dominated by electronic stopping, and each individual ion may induce a linear trail of damage with a width of a few nanometers and a length of several tens of micrometers or more [Citation1]. During the last decade, ion tracks and other radiation effects induced by swift heavy ions have been studied in a wide range of materials for basic research, as well as for a wide variety of applications. The interactions of swift heavy ions with matter are significantly different from those induced by lower energy ions (keV-MeV), where atoms are directly displaced from their lattice sites via elastic collisions. In contrast, swift ions (MeV-GeV) transfer their kinetic energy to the electrons of the target, inducing ionization and initiating a cascade of secondary electrons that quickly spreads radially. The extremely high energy densities (up to tens of eV/atom) along the ion path lead to a confined plasma-like state that is dissipated through electron–phonon coupling to the lattice. Subsequent rapid transitions through equilibrium and non-equilibrium states trigger complex structural modifications within a highly localized nanoscale damage zone, forming ion tracks in materials ion tracks (Figure 1) [2].
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Lang, Maik ; O’Quinn, Eric ; Neuefeind, Jörg ; Trautmann, Christina |
| Art des Eintrags: | Bibliographie |
| Titel: | Characterization of radiation effects and ion tracks with spallation neutron probes |
| Sprache: | Englisch |
| Publikationsjahr: | 28 April 2020 |
| Verlag: | Taylor & Francis |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Nuclear Physics News |
| Jahrgang/Volume einer Zeitschrift: | 30 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1080/10619127.2019.1676120 |
| Kurzbeschreibung (Abstract): | Swift heavy ions are typically defined as high-mass charged particles of kinetic energy above ∼1 MeV per nucleon (MeV/u). In this regime, the energy deposition of the ions is dominated by electronic stopping, and each individual ion may induce a linear trail of damage with a width of a few nanometers and a length of several tens of micrometers or more [Citation1]. During the last decade, ion tracks and other radiation effects induced by swift heavy ions have been studied in a wide range of materials for basic research, as well as for a wide variety of applications. The interactions of swift heavy ions with matter are significantly different from those induced by lower energy ions (keV-MeV), where atoms are directly displaced from their lattice sites via elastic collisions. In contrast, swift ions (MeV-GeV) transfer their kinetic energy to the electrons of the target, inducing ionization and initiating a cascade of secondary electrons that quickly spreads radially. The extremely high energy densities (up to tens of eV/atom) along the ion path lead to a confined plasma-like state that is dissipated through electron–phonon coupling to the lattice. Subsequent rapid transitions through equilibrium and non-equilibrium states trigger complex structural modifications within a highly localized nanoscale damage zone, forming ion tracks in materials ion tracks (Figure 1) [2]. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien |
| Hinterlegungsdatum: | 29 Feb 2024 08:13 |
| Letzte Änderung: | 29 Feb 2024 08:13 |
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