The $\gamma$-ray strength function for Thallium isotopes relevant to the ${}^{205}$Pb - ${}^{205}$Tl chronometry

H. Utsunomiya, T. Renstrøm, G. M. Tveten +11

Photoneutron cross sections were measured for ${}^{203}$Tl and ${}^{205}$Tl at energies between the one- and two-neutron thresholds using quasi-monochromatic $\gamma$-ray beams produced in…