  In about half of all near-cusp events in superconducting cosmic strings with
chiral currents (and probably with general currents as well), the string
intersects itself near the cusp. Intercommutation causes the conversion of the
string near the cusp into a vorton (in the chiral case) with very high Lorentz
boost. We demonstrate how to analyze the cusp shape in a Lorentz frame that
makes the motion simple, by the use of a 5-dimensional procedure, and analyze
the resulting production of vortons.
