Abstract
In this study, photographs were taken which definitely showed the focusing ability of superconducting lenses (Supertrons). High-Tc Bi- and Y-compound superconducting lenses with an inner diam of about 20 mm focused relativistic electron beams (REBs, 310 keV, 3.8 kA, with a duration time of less than 5 ns) to a diameter of 2.6 and 4.5 mm, respectively, at the exit of the lenses.
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