Active-Target Detectors at the Current-Generation Radioactive-Beam Facilities in North America

Active target detectors are well poised to take advantage of the beams available at the current generation of radioactive beam facilities and university-based laboratories. In this talk, I will focus on some of the activities at the national-user facilities in the US, namely ATLAS at Argonne National Laboratory, and the Facility for Rare Isotope Beams (FRIB) at Michigan State University. Experiments at these facilities explore the science capable at energies below and around the Coulomb barrier, above the Coulomb barrier, and fast beam energies for mostly light but also some medium-heavy nuclei. A few experiments will be presented that aim to study single-particle shell structure and collective phenomena such as giant resonances. There are aspects of these experiments that will push the limits of what is possible with active targets. A few topics that may be the next steps in the evolution of active target experiments will be presented.