The total neutron cross sections of samarium highly enriched in the 147Sm and 150Sm isotopes have been measured from 0.01 eV to 1.2 keV. Thermal neutron cross sections and resonance parameters were extracted, and the S-wave strength functions and capture resonance integrals were calculated. Corrections for paramagnetic and small angle scattering were applied to the thermal-neutron cross sections in order to obtain thermal absorption cross sections. The following results were obtained: