In-situ electric resistance measurements and annealing effects of graphite exposed to swift heavy ions
作者： Sandrina Fernandes , Frederique Pellemoine , Marilena Tomut , Mikhail Avilov , Markus Bender
DOI: 10.1016/J.NIMB.2013.04.060
关键词: Analytical chemistry 、 Joule heating 、 Radiochemistry 、 Irradiation 、 Annealing (metallurgy) 、 Graphite 、 Fluence 、 Swift heavy ion 、 Electrical resistance and conductance 、 Materials science 、 Radiation damage 、 Nuclear and High Energy Physics 、 Instrumentation (computer programming)
摘要: Abstract To study the suitability of using graphite as material for high-power targets rare isotope production at future Facility Rare Isotope Beams (FRIB) in USA and Antiproton Ion Research (FAIR) Germany, thin foils polycrystalline were exposed to 8.6-MeV/u Au ions reaching a maximum fluence 1 × 1015 ions/cm2. Foil irradiation temperatures up 1800 °C obtained by ohmic heating. In-situ monitoring electrical resistance during after provided information on beam-induced radiation damage. The rate increase function was found decrease with increasing temperature, indicating more efficient annealing irradiation-produced defects. This is corroborated observation that irradiated below about 800 °C showed cracks pronounced deformations, which did not appear samples higher temperatures.
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