A new experimental setup for low-energy Coulomb excitation was developed at NSCL and commissioned at the general purpose beam line of the ReA3 reaccelerator facility. The so-called SeGA-JANUS (Joint Array for NUclear Structure) setup combines γ-ray detection with the Segmented Ge Array (SeGA) with scattered particle detection using a pair of segmented double-sided Si detectors. The low-energy Coulomb excitation program that SeGA-JANUS will enable complements intermediate-energy Coulomb excitation studies that have long been performed at NSCL by providing access to observables that quantify collectivity beyond the first excited state and that are sensitive to the sign and magnitude of quadrupole moments. This opens up new research opportunities now at NSCL and in the future at FRIB where the variety of available beams and their intensity will greatly increase.The commissioning experiment used stable 78Kr beam. With (Z,N)=(36,42), 78Kr has enough valence protons and neutrons to exhibit collective structures that are strongly excited in Coulomb scattering. In addition to being a noble gas and well-studied, this made 78Kr an ideal choice for the SeGA-JANUS commissioning.In this work, the new detector setup, including data acquisition and analysis will be presented. The deduced measures of collectivity and shape are compared to literature values.Due to delays in the ReA3 readiness, this thesis also includes the experimental study of neutron-rich sulfur isotopes with mass numbers A=38-42. This work used the GRETINA setup at the S800 spectrograph and resulted in a peer-reviewed publication in Physical Review C that is reproduced in Appendix C.
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