Beta-delayed neutron emission studies with a C$^{7}$LYC array at CARIBU

This work is a study of $\beta$-delayed neutron and $\gamma$ emission from $^{94}$Rb at CARIBU. Beta-delayed neutron emission studies are important in the astrophysical r-process, nuclear structure and for nuclear reactor safety and design. Approximately 150 $\gamma$ rays are known in the daughter $^{94}$Sr, many of which are unplaced. An estimated $26\%$ of $\gamma$ rays are thought to be missing. The probability of $\beta$-delayed neutron emission in $^{94}$Sr is $10.2(2)\%$. Recently[1], substantial $\gamma$-decay from above the neutron separation energy in $^{94}$Rb has been reported. This research is aimed at understanding this high-lying $\gamma$-strength. The experiment employed the X-Array (a high efficiency HPGe clover array), SCANS (Small CLYC Array for Neutron Scattering) and the SATURN decay station (Scintillator And Tape Using Radioactive Nuclei) for $\gamma$, fast neutron and $\beta$-particle detection, respectively. Data were collected in a triggerless digital data acquisition system, with detected $\beta,n,$ and $\gamma$ events correlated offline. Techniques, analysis and first results will be discussed. [1] J. L. Tain et al, Phys. Rev. Lett 115 (062502) 2015