Abstract
The retention of helium and deuterium in tungsten irradiated with a high-intensity plasma flux (~1024 m−2 s−1) using either helium or deuterium ions is studied. Irradiation is carried out at a temperature of 480 K. Recrystallized and plastically deformed samples are used to detect the effect of the initial microstructure on plasma confinement and release. Thermal-desorption spectroscopy is performed to reveal the stages of release and for quantitative determination of the retention integral for both types of samples. A comparison of the recrystallized and plastically deformed samples is performed to determine the effect of plastic deformation (expressed in a high dislocation density and dislocation networks) on the confinement and release of plasma components. It is demonstrated that plastic deformation causes a significant decrease in helium retention, and, conversely, an increase in the capture of deuterium.
Original language | English |
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Pages (from-to) | 1254–1259 |
Number of pages | 6 |
Journal | Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques |
Volume | 14 |
Issue number | 6 |
DOIs | |
State | Published - 28 Dec 2020 |