Gamma ray detection with CHIMERA at LNS: results and perspectives. (June 2020)

• Record Type: Journal Article
• Authors: Cardella, G; Favela, F; Martorana, N S; Acosta, L; Andres, M V; Camaiani, A; De Filippo, E; De Luca, S; Gelli, N; Geraci, E; Gnoffo, B; Guazzoni, C; Marín-Lámbarri, D J; Lanza, E G; Lanzalone, G; Maiolino, C; Nannini, A; Pagano, A; Pagano, E V; Papa, M; Pirrone, S; Politi, G; Pollacco, E; Quattrocchi, L; Rizzo, F; Russotto, P; Santonocito, D; Sicari, V; Trifirò, A; Trimarchi, M
• Is Part Of: Journal of physics. Volume 1561(2020)
• Publication Date: 2020-06
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1561/1/012007
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: We describe the use of the 4tt CHIMERA charged particle detector as a large efficiency y-ray detector. The CsI(Tl) stage of the CHIMERA telescope is used to detect and identify y-rays. The high detection efficiency and the sufficient energy resolution guaranteed by CsI(Tl) allows us to use the detector for the study of rare decays. Two examples are reported: the low probability gamma decay (<10%) of the Pygmy resonance of a radioactive nucleus as the 68 Ni; the measurement of the gamma decay probability of excited levels of 12 C as the Hoyle state at 7.65 (∼10 −4 ) MeV and the 3- level at 9.64 MeV (∼10 7 ), both important for the Carbon production in stars. Future experiments made possible at INFN-LNS by the availability of the new fragment separator FRAISE are also outlined.