Analysis methods to determine the bound-state beta-decay half-life of Thallium-205

Bound-state β−-decay is an exotic decay mode that produces
temperature-dependent stability in nuclei. A striking example is 205Tl, in part
because of its impact on the 205Pb/204Pb cosmochronometer—a short-lived ra-
dionuclide clock that can provide unique constraints on s process material in
the early solar system. The bound-state β−-decay of 205Tl was measured at GSI,
where fully stripped 205Tl81+ ions were produced and stored in the Experimen-
tal Storage Ring. Decay occurred during storage producing increased 205Pb
daughters with increased storage time. This contribution briefly outlines the
experiment and describes analytical corrections required to extract the half-lif