  The capture cross section of $^{209}$Bi(n,$\gamma$)$^{210g}$Bi was measured
at different astrophysically energies including thermal capture cross section
(25 meV), resonance integral, and the Maxwellian averaged cross section at a
thermal energy of $kT$ = 30 keV. The partial capture cross section ($\sigma_g$)
was determined using the activation technique and by measuring the $^{210}$Po
activity. The newly developed and tested NICE detector setup was used to
measure the $\alpha$-activity of the $^{210}$Po. Using this setup the thermal
and resonance integral cross sections were determined to be
$16.2\;\pm\;0.97$~mb and $89.81\;\pm\;8.0$~mb, respectively. And the Maxwellian
average cross section was measured to be $2.01\;\pm\;0.38$~mb.
