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A future compact and modular X and gamma-ray spectrometer (XGS) has been designed and a series of proto- types have been developed and tested. The experiment envisages the use of CsI scintillator bars read out at both ends by single-cell 25 mm2 Silicon Drift Detectors. Digital algorithms are used to discriminate between events absorbed in the Silicon layer (lower energy X rays) and events absorbed in the scintillator crystal (higher energy X rays and -rays). The prototype characterization is shown and the modular design for future experiments with possible astrophysical applications (e.g. for the THESEUS mission proposed for the ESA M5 call) are discussed.
International Society for Optics and Photonics
Publication date: 
18 Jul 2016

RICCARDO Campana, FABIO Fuschino, CLAUDIO Labanti, M Marisaldi, LORENZO Amati, MAURO Fiorini, MICHELA Uslenghi, G Baldazzi, Pierluigi Bellutti, YURI Evangelista, I Elmi, MARCO Feroci, Francesco Ficorella, F Frontera, Antonino Picciotto, Claudio Piemonte, A Rachevski, I Rashevskaya, LP Rignanese, A Vacchi, G Zampa, N Zampa, Nicola Zorzi

Biblio References: 
Volume: 9905 Pages: 99056I
Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray