A Radio-Frequency Fragment Separator for FRIB

Understanding nuclei at the limits of stability has been, and continues to be, one of the main focuses of nuclear physics. For studies on nuclei in the regions far from stability, clean beams of radioactive isotopes are often required. For studies at the NSCL that require purification beyond magnetic-bending and energy-loss techniques, a Radio-Frequency Fragment Separator (RFFS) is available. Several experiments at the NSCL have already been made possible with the use of the current RFFS. Results from one such experiment measuring beta-delayed protons from 73Rb, to study the 72Kr rp-process waiting point, will be presented. With the advent of FRIB, a new RFFS needs to be developed so that users can be provided high-purity radioactive beams. A proposal for such a device has already been submitted, and some LISE++ simulations of experiments requiring an RFFS at FRIB will be discussed.