  The cross sections for ({\gamma},xn) reactions at 30 MeV and 40 MeV
bremsstrahlung end-point energies on natural rhenium (natRe) targets have been
measured by the activation and the off-line {\gamma}-ray spectrometric
techniques using a High Purity Germanium detector (HPGe). The measured
natRe({\gamma},xn) reaction cross sections were compared to the theoretically
calculated cross sections using TALYS 1.9 and EMPIRE 3.2 computer codes. The
measurements allowed the determination of the Isomeric Cross section Ratios
(ICR) for the 184m,g Re and 182m,gRe isomeric pairs. In addition, we have
determined a semi-empirical value for the 186m,gRe isomeric pair. These results
for the 30 MeV and 40 MeV end-point bremsstrahlung energies are obtained for
the first time.
