Seminar - Alan Howard: 'Fusion studies of low-intensity beams using an active-target time-projection chamber'
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Fusion studies of low-intensity beams using an active-target time-projection chamber
In the coming years a new generation of radioactive-beam facilities are due to enter service, offering the opportunity to extend fusion studies to ever more exotic nuclei. Many of the most interesting species will likely be produced with extremely low yields, however, making 'traditional' thin-target fusion measurements unfeasible. In order to fully exploit these new facilities novel detection methods are therefore required. An active-target time-projection chamber (AT-TPC) is under development at the National Superconducting Cyclotron Laboratory for use with the forthcoming re-accelerated beam facility, ReA, which seeks to address these issues. The use of an active target permits an arbitrarily-thick target to be presented, greatly extending the domain of nuclei which may be studied, while also permitting the simultaneous study of transfer and breakup channels. Fusion measurements using a half-scale prototype of the AT-TPC coupled to the TwinSol radioactive beam facility at the University of Notre Dame will be presented, and the outlook for future studies using the full-scale AT-TPC discussed.