Temperature dependence of liquid-lithium sputtering from oblique 700 eV He ions

Molecular dynamics modeling of deuterium in liquid lithium surfaces

“…Higher surface temperature increases the stimulated-evaporation low-energy peak. This has also been seen experimentally [2][3][4][5].…”

“…The surface temperature has a key effect on sputtering yield. Sputtering yield increases with surface temperature and incident angle, as observed in Li + on liquid Li experiments [2]. Furthermore, surface temperature has a significant effect on the thermal sputtering contribution from the liquid surface.…”

“…Compared with solid surfaces, the structural and thermodynamic properties of liquid Li surfaces are different, which leads to significant effects on the erosion and reflection. Recent experiments, IIAX at UIUC [2] and PICSES at UCSD [3][4][5], show enhanced erosion with increasing surface temperature. Codes based on the binary collision approximation (BCA) (e.g.…”

Incident-mass dependence of temperature-enhanced ion-induced sputtering in liquid metals

“…Also important is an understanding of any changes in these responses due to elevated surface temperatures as such a divertor will be operated at high temperatures, particularly on a transient basis. Similar to that of other liquid metal PFC candidates [2][3][4][5], tinÕs sputtering yield due to low-energy, light ion bombardment exhibits clear temperature dependence [6,7].…”

Temperature dependence of liquid Sn sputtering by low-energy He+ and D+ bombardment

“…TinÕs primary drawbacks are its high atomic number, minimizing the acceptable impurity level, and its smaller thermal conductivity in comparison to lithium [3]. However, it is also important to consider any enhancement of the sputtering yield with temperature to determine a realistic upper limit on operating temperature of the liquid as many liquid metals (and several solids) have shown temperature-enhanced sputtering properties [4][5][6][7].…”