  Assuming the possibility of existence of a supercivilization we extend the
idea of Freeman Dyson considering pulsars instead of stars. It is shown that
instead of a spherical shell the supercivilization must use ring-like
constructions. We have found that a size of the "ring" should be of the order
of $(10^{-4}-10^{-1})$AU with temperature interval $(300-600)$K for relatively
slowly rotating pulsars and $(10-350)$AU with temperature interval $(300-700)$K
for rapidly spinning neutron stars, respectively. Although for the latter the
Dyson construction is unrealistically massive and cannot be considered
seriously. Analyzing the stresses in terms of the radiation and wind flows it
has been argued that they cannot significantly affect the ring construction. On
the other hand, the ring in-plane unstable equilibrium can be restored by the
energy which is small compared to the energy extracted from the star. This
indicates that the search for infrared ring-like sources close to slowly
rotating pulsars seems to be quite promising.
