Feasibility of Direct (n,$\gamma$) TOF Experiments on s-Process Branch Points

We have simulated the response of a 4-$\pi$ calorimetric detector to radioactive isotopes on the s-process path. From these simulations, a maximum tolerable sample size has been determined. In addition, the estimated neutron flux needed for a direct time-of-flight measurement on these branch-point isotopes has been determined. These calculations should aid in the planning of future experiments on these critical isotopes. The methodology of the simulations as well as the determination of the maximum sample size will be discussed.