Fernandes, Sandrina ; Pellemoine, Frederique ; Tomut, Marilena ; Avilov, Mikhail ; Bender, Markus ; Boulesteix, Marine ; Krause, Markus ; Mittig, Wolfgang ; Schein, Mike ; Severin, Daniel ; Trautmann, Christina (2013)
In-situ electric resistance measurements and annealing effects of graphite exposed to swift heavy ions.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 314
doi: 10.1016/j.nimb.2013.04.060
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
To study the suitability of using graphite as material for high-power targets for rare isotope production at the future Facility for Rare Isotope Beams (FRIB) in the USA and at the Facility for Antiproton and Ion Research (FAIR) in Germany, thin foils of polycrystalline graphite were exposed to 8.6-MeV/u Au ions reaching a maximum fluence of 1 × 1015 ions/cm2. Foil irradiation temperatures of up to 1800 °C were obtained by ohmic heating. In-situ monitoring of the electrical resistance of the graphite foils during and after irradiation provided information on beam-induced radiation damage. The rate of electrical resistance increase as a function of fluence was found to decrease with increasing irradiation temperature, indicating a more efficient annealing of the irradiation-produced defects. This is corroborated by the observation that graphite foils irradiated at temperatures below about 800 °C showed cracks and pronounced deformations, which did not appear on the samples irradiated at higher temperatures.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | Fernandes, Sandrina ; Pellemoine, Frederique ; Tomut, Marilena ; Avilov, Mikhail ; Bender, Markus ; Boulesteix, Marine ; Krause, Markus ; Mittig, Wolfgang ; Schein, Mike ; Severin, Daniel ; Trautmann, Christina |
| Art des Eintrags: | Bibliographie |
| Titel: | In-situ electric resistance measurements and annealing effects of graphite exposed to swift heavy ions |
| Sprache: | Englisch |
| Publikationsjahr: | November 2013 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
| Jahrgang/Volume einer Zeitschrift: | 314 |
| DOI: | 10.1016/j.nimb.2013.04.060 |
| Kurzbeschreibung (Abstract): | To study the suitability of using graphite as material for high-power targets for rare isotope production at the future Facility for Rare Isotope Beams (FRIB) in the USA and at the Facility for Antiproton and Ion Research (FAIR) in Germany, thin foils of polycrystalline graphite were exposed to 8.6-MeV/u Au ions reaching a maximum fluence of 1 × 1015 ions/cm2. Foil irradiation temperatures of up to 1800 °C were obtained by ohmic heating. In-situ monitoring of the electrical resistance of the graphite foils during and after irradiation provided information on beam-induced radiation damage. The rate of electrical resistance increase as a function of fluence was found to decrease with increasing irradiation temperature, indicating a more efficient annealing of the irradiation-produced defects. This is corroborated by the observation that graphite foils irradiated at temperatures below about 800 °C showed cracks and pronounced deformations, which did not appear on the samples irradiated at higher temperatures. |
| Freie Schlagworte: | High-power graphite target, Swift heavy ion, Radiation damage, Electrical resistance |
| Zusätzliche Informationen: | Eighth International Symposium on Swift Heavy Ions in Matter (SHIM 2012) |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 03 Apr 2014 09:29 |
| Letzte Änderung: | 03 Apr 2014 09:29 |
| PPN: | |
| Sponsoren: | This material is based upon work supported by U.S. Department of Energy, Office of Science under Cooperative Agreement DE-SC0000661. |
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