  If different species of neutrinos possess transition magnetic moments, a
conversion between species can occur in the Coulomb field of a nucleus. In the
case of Dirac neutrinos this corresponds to an active to sterile conversion,
whereas in the case of Majorana neutrinos, the conversion takes place between
active species. The conversion cross sections grow with the energy of the
incident neutrino. The formalism is also applied to a new type of experiment
designed to test the existence of the ``KARMEN anomaly''.
