While waiting for γ beams at ELI-NP: First results from ELIGANT and ELIFANT experiments

DOI:

10.1051/epjconf/202534201002

Authors:

Dimiter L. Balabanski, A. Kuşoğlu, Pär-Anders Söderström

Abstract:

In the period 2022-2025, four experimental campaigns were car­ried out at the 9 MW tandem accelerator of IFIN-HH using the large-volume LaBr
3
:Ce and CeBr
3
detectors of the ELIGANT-GN array, which were placed in the anti-Compton shields of the ROSPHERE. As a result, a highly efficient spec­trometer, ELIFANT, was assembled for the detection of high-energy gamma rays. In the experiments, nuclear level densities and
γ
-strength functions were studied, as well as weak
γ
-ray transitions in light nuclei. In the paper, the per­formance of the spectrometer is described, the goals of the campaigns are sum­marized, and first results are presented, e.g., the
γ
-ray spectroscopy in
10
B and the γ-strength functions in
112,114
Sn. The ELIGANT-GN array was also used to study neutron and
γ
-ray angular and energy correlations in spontaneous fission of
252
Cf. First results from these studies are presented, too.