The Re-185(n,alpha)Ta-182, Re-187(n,alpha)Ta-184, Re-187(n,p)W-187, an
d Re-187(n,2n) Re-186g reaction cross sections included by 13.5-14.7 M
eV neutrons were measured by the activation method. The neutron fluenc
es were determined by the cross section of the Al-27(n,alpha)Na-24 rea
ction. The neutron energies in these measurements were determined by t
he cross section ratios for Zr-90(n,2n)Zr89m+g and Nb-93(n,2n)Nb-92m r
eactions.