Speaker
Description
Two major instruments for γ-ray measurements have been constructed and commissioned at ELI-NP, the ELIADE and ELIGANT-GN arrays. ELIADE consists of eight large-volume HPGe Clover detectors and four large-volume (3″ x 3″) CeBr3 detectors, all of them placed in anti-Compton shields. ELIGANT-GN is a 4π spectrometer for combined γ-ray and neutron measurements. In the upper hemisphere are placed 37 EJ301 liquid scintillation detectors and 32 6Li-glass detectors for neutron measurements, while in the lower hemisphere there are 34 3″ x 3″ LaBr3:Ce and CeBr3 γ-ray detectors. The performance of the instruments will be presented.
In the last years, 25 of the large-volume scintillation detectors were placed in the ROSPHERE anti-Compton shields at the 9 MV tandem of IFIN-HH, resulting in a unique worldwide highly-efficient spectrometer for high-energy γ rays, the ELIFANT array. More than 25 experiments were carried out with this detector, addressing nuclear level densities and γ-strength functions, coincidence γ-ray and γ-α spectroscopy in light nuclei, studies of Giant and Pigmy resonances. The performance of the array and selected results from the experimental program will be presented.
* The work is supported in part by the by the ELI-RO program funded by the Institute of Atomic Physics, Magurele, Romania, contract number ELI-RO/RDI/2024-007 (ELITE) and by the contract PN 23.21.01.06 with the Romanian Ministry of Research, Innovation and Digitalization.