  Photoionization cross section $\sigma_{n\kappa}$, asymmetry parameter
$\beta_{n\kappa}$, and polarization parameters $\xi_{n\kappa}$,
$\eta_{n\kappa}$, $\zeta_{n\kappa}$ of Xe and Rn are calculated in the fully
relativistic formalism. To deal with the relativistic and correlation effects,
we adopt the relativistic random-phase theory with channel couplings among
different subshells. Energy ranges for giant \emph{d}-resonance regions are
especially considered.
