TY - JOUR
T1 - D, He and Li sputtering of liquid eutectic Sn-Li
AU - Allain, J. P.
AU - Ruzic, D. N.
AU - Hendricks, M. R.
N1 - Funding Information:
This work is supported by DOE ALPS US Program and DOE/NSF Basic Plasma Science Initiative (#DE-FG02-97ER54440). We would like to thank Mark Boaz and Leslie Manohar for their support in assisting with measurements and analysis. We would also like to thank Rick Haasch for his help with XPS measurements carried out in the Center for Microanalysis of Materials, University of Illinois, which is supported by the US Department of Energy under grant DEFG02-96-ER45439. In addition we would like to thank J. Brooks, B. Bastasz and P. Sigmund for helpful and insightful discussions.
PY - 2001/3
Y1 - 2001/3
N2 - The absolute sputtering yields from bombardment of D+, He+ and Li+ on liquid tin-lithium eutectic have been measured and modeled at energies between 200 and 1000 eV. The Ion-surface InterAction Experiment (IIAX) has been optimized to reliably measure the absolute sputtering yield of many ion-target combinations including solid and liquid lithium. A Colutron ion source is used to create and accelerate gaseous or metal ions onto a liquid metal target. The bombarding ions are mass-selected through an E X B filter and decelerated near the target. The target can be rotated in order to provide variation in the angle of incidence. Deuterium plasma from a hollow cathode source is used to remove any remaining oxides. Upon melting of the sample a thin oxide layer forms and is cleaved by an in situ arm. Results show that sputtering yields from liquid tin-lithium are larger than pure lithium. In addition, modeling with VFTRIM-3D confirms that Li atoms segregate to the surface of liquid tin-lithium. This is consistent with results of ion fraction of sputtered atoms, which show a sputtered-atom ion fraction of 65% for liquid tin-lithium, equal to pure liquid lithium, and <10% for solid tin-lithium.
AB - The absolute sputtering yields from bombardment of D+, He+ and Li+ on liquid tin-lithium eutectic have been measured and modeled at energies between 200 and 1000 eV. The Ion-surface InterAction Experiment (IIAX) has been optimized to reliably measure the absolute sputtering yield of many ion-target combinations including solid and liquid lithium. A Colutron ion source is used to create and accelerate gaseous or metal ions onto a liquid metal target. The bombarding ions are mass-selected through an E X B filter and decelerated near the target. The target can be rotated in order to provide variation in the angle of incidence. Deuterium plasma from a hollow cathode source is used to remove any remaining oxides. Upon melting of the sample a thin oxide layer forms and is cleaved by an in situ arm. Results show that sputtering yields from liquid tin-lithium are larger than pure lithium. In addition, modeling with VFTRIM-3D confirms that Li atoms segregate to the surface of liquid tin-lithium. This is consistent with results of ion fraction of sputtered atoms, which show a sputtered-atom ion fraction of 65% for liquid tin-lithium, equal to pure liquid lithium, and <10% for solid tin-lithium.
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U2 - 10.1016/S0022-3115(00)00504-3
DO - 10.1016/S0022-3115(00)00504-3
M3 - Article
AN - SCOPUS:3342990231
SN - 0022-3115
VL - 290-293
SP - 33
EP - 37
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
ER -