Speaker
Description
An active-target Time Projection Chamber (TPC) has been developed at the University of Warsaw to investigate the photo-disintegration reactions relevant for nuclear astrophysics and for studies of nuclear structure phenomena, e.g. alpha-clustering effects in light nuclei.
Recently, the performance of the detector was tested in experiments conducted at the Van de Graaf accelerator at the IFJ PAN in Cracow, Poland. There, a 13 MeV gamma beam produced in the $^{15}$N(p, $\gamma$)$^{16}$O reaction was interacting with the CO$_{2}$ gas in the TPC. Events corresponding to the $^{16}$O($\gamma$, $\alpha$)$^{12}$C reaction were clearly observed.
At the IGN-14 MeV neutron source at the IFJ PAN, the $^{12}$C(n,n’) reaction was investigated with the goal to observe population and 3-alpha decay of the Hoyle state in $^{12}$C.
In this contribution first results of these measurements will be presented and an outlook for future studies will be discussed.
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This work was supported by the Polish Ministry of Science and Higher Education fromthe funds for years 2019-2021 dedicated to implement the international co-funded project no. 4087/ELI-NP/2018/0, by University of Connecticut under the Collaborative Research Contract no. UConn-LNS UW/7/2018 and by the National Science Centre, Poland, under Contract no. UMO-2019/33/B/ST2/02176.
