E. Hesse et Fk. Naehring, NARROW ANGLE EMISSION FROM A LITHIUM LIQUID-METAL ION-SOURCE, Journal of physics. D, Applied physics, 26(4), 1993, pp. 717-718
At a lithium liquid metal ion source two concentric emission bundles w
ith sharp outlines are observed, which may indicate two different kind
s of emitted ions and/or emission mechanisms. The angular intensity of
the narrow bundle is the highest yet reported for liquid metal ion so
urces.