  Nuclei, if lifted into the radiation zone of a weak axisymmetric pulsar, are
accelerated to quasi-monoenergetic spectrum, with more than half of the nuclear
luminosity emitted nearly monoenergetically, at the energy E approximately =
4Ze(L/c)^(1/2), where L is the spin-down power.
  With a number of (not obviously wrong) assumptions, this turns Fermi (-like)
weak pulsars into prominent accelerators at energies near the cosmic ray knee.
The main uncertainty is purely theoretical: one needs to understand if nuclei
are major positive charge carries in some weak pulsar magnetospheres.
