Speaker
Enrico Fioretto
(LNL)
Description
PRISMA is a large acceptance magnetic spectrometer designed to be used with heavy-ion beams accelerated at energies up to E = 10 AMeV by means of the Tandem/PIAVE-ALPI accelerator complex of Laboratori Nazionali di Legnaro. Its large solid angle and the high resolving powers of its detection systems allowed to investigate the transfer process around and well below the Coulomb barrier. Moreover, the coupling of the spectrometer with large gamma-ray arrays, such as CLARA or the AGATA Demonstrator, also allowed to make in-beam gamma-spectroscopy of moderately neutron-rich nuclei populated by multinucleon transfer reactions through the identification of individual excited states and their population pattern.
Experimental campaigns were mainly addressed to obtain information on the shell evolution and the onset of new regions of deformation (collectivity, critical point symmetries) in medium-mass moderately neutron-rich nuclei, on the interplay between single and pair transfer modes and the population of neutron-rich heavy nuclei via multinucleon transfer reactions.
A detailed description of the spectrometer and its detectors as well as some selected results of recent studies will be presented.
Several developments are also being carried out around the target area of PRISMA in order to obtain additional experimental information and to improve its performances by equipping the spectrometer with ancillary detectors. The status of these ongoing upgrades will be also presented.
Primary author
Enrico Fioretto
(LNL)
