The GALILEO <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e432" altimg="si31.svg"><mml:mi>γ</mml:mi></mml:math>-ray array at the Legnaro National Laboratories

Goasduff, A.; Mengoni, D.; Recchia, F.; Valiente-Dobón, J.J.; Menegazzo, R.; Benzoni, G.; Barrientos, D.; Bellato, M.; Bez, N.; Biasotto, M.; Blasi, N.; Boiano, C.; Boso, A.; Bottoni, S.; Bracco, A.; Brambilla, S.; Brugnara, D.; Camera, F.; Capra, S.; Capsoni, A.; Cocconi, P.; Coelli, S.; Cortés, M. L.; Crespi, F. C. L.; Angelis, G. de; Egea, Francisco J.; Fanin, C.; Fantinel, S.; Gadea, A.; Gamba, E. R.; Gambalonga, A.; Gesmundo, C.; Gosta, G.; Gottardo, A.; Gozzelino, A.; Gregor, E.; Gulmini, M.; Ha, J. H.; Hadyńska-Klęk, K.; Illana, A.; Isocrate, R.; Jaworski, G.; John, P. R.; Lenzi, S. M.; Leoni, S.; Lunardi, S.; Magalini, Marta; Marchini, N.; Million, B.; Modamio, V.; Nannini, A.; Napoli, D. R.; Pasqualato, G.; Pellumaj, J.; Pérez-Vidal, R. M.; Pigliapoco, S.; Polettini, M.; Porzio, C.; Pullia, A.; Ramina, Larissa; Rampazzo, G.; Rampazzo, Mirco; Rebeschini, M.; Rezynkina, K.; Rocchini, M.; Romanato, M.; Rosso, D.; Saltarelli, A.; Scarcioffolo, M.; Siciliano, M.; Testov, D.; Tomasella, D.; Tomasi, F. De; Toniolo, N.; Ur, C. A.; Ventura, S.; Veronese, Francesco M.; Viscione, E.; Volpe, V.; Wieland, O.; Zanon, I.; Ziliani, S.; Zhang, G.; Bazzacco, D.

doi:10.1016/j.nima.2021.165753

Cited by 27 publications

(8 citation statements)

References 48 publications

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“…The HPGe detectors will work in a rather harsh conditions due to the X-rays' and γ-rays' background of about 50 kHz (in each detector, in terms of detected counts per second) produced inside the plasma trap due to the electron bremsstrahlung. Dedicated electronics able to run in these experimental conditions have been already developed and are currently used by the GAMMA collaboration, which will lend 16 HPGe detectors of the GALILEO Array [16] for the first experimental PANDORA campaign and will share their know-how in the optimization of the setup performances.…”

Section: Hpge Gamma Ray Detectors' Arraymentioning

confidence: 99%

A Novel Approach to β-Decay: PANDORA, a New Experimental Setup for Future In-Plasma Measurements

et al. 2022

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Theoretical predictions as well as experiments performed at storage rings have shown that the lifetimes of β-radionuclides can change significantly as a function of the ionization state. In this paper we describe an innovative approach, based on the use of a compact plasma trap to emulate selected stellar-like conditions. It has been proposed within the PANDORA project (Plasmas for Astrophysics, Nuclear Decay Observation and Radiation for Archaeometry) with the aim to measure, for the first time in plasma, nuclear β-decay rates of radionuclides involved in nuclear-astrophysics processes. To achieve this task, a compact magnetic plasma trap has been designed to reach the needed plasma densities, temperatures, and charge-states distributions. A multi-diagnostic setup will monitor, on-line, the plasma parameters, which will be correlated with the decay rate of the radionuclides. The latter will be measured through the detection of the γ-rays emitted by the excited daughter nuclei following the β-decay. An array of 14 HPGe detectors placed around the trap will be used to detect the emitted γ-rays. For the first experimental campaign three isotopes, 176Lu, 134Cs, and 94Nb, were selected as possible physics cases. The newly designed plasma trap will also represent a tool of choice to measure the plasma opacities in a broad spectrum of plasma conditions, experimentally poorly known but that have a great impact on the energy transport and spectroscopic observations of many astrophysical objects. Status and perspectives of the project will be highlighted in the paper.

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Section: Hpge Gamma Ray Detectors' Arraymentioning

confidence: 99%

A Novel Approach to β-Decay: PANDORA, a New Experimental Setup for Future In-Plasma Measurements

et al. 2022

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“…13b the discrimination between α particles and neutrons is shown. In this case, a 228 Th α source and an AmBe neutron source were used. The collaboration performed also a further study employing stable beams, delivered by the Cyclotron at INFN-LNS, to investigate the performance of EJ 299-33 scintillator in experiments with heavy ions, i.e.…”

Section: Chironementioning

confidence: 99%

“…[185]. b The plot shows α, neutron and γ -ray discrimination obtained using 228 Th and AmBe sources. The unit keVee is for keV electron equivalent [185]…”

Section: Chironementioning

confidence: 99%

“…The other non-negligible background contribution is due to the radioactive impurities in the BaF 2 ( 226,228 Ra and their daughters), which emit α and γ -rays with energies up to a few MeV [204]. Signals produced by α-particles can be discriminated from γ -induced events by the absence of the fast component in the light output; the time dependence of each light component can be expressed by an exponential formula with a proper decay constant.…”

Section: N_tofmentioning

confidence: 99%

“…The design of γ -ray spectroscopy system was optimized by GEANT4 simulations. Since the harsh environment (the noise is represented by the intense plasma self-emission) strongly affects the signal-to-noise ratio, HPGe (70% of relative efficiency) detectors were chosen for their high resolution (0.2% at 1 MeV) [228]. Due to limited number of possible holes in the magnetic trap, the best compromise was obtained using 14 HPGe detectors.…”

Section: Pandora: Ion Identification With X-ray Spectroscopy and Isot...mentioning

confidence: 99%

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Trends in particle and nuclei identification techniques in nuclear physics experiments

et al. 2022

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Particle identification techniques are fundamental tools in nuclear physics experiments. Discriminating particles or nuclei produced in nuclear interactions allows to better understand the underlying physics mechanisms. The energy interval of these reactions is very broad, from sub-eV up to TeV. For this reason, many different identification approaches have been developed, often combining two or more observables. This paper reviews several of these techniques with emphasis on the expertise gained within the current nuclear physics scientific program of the Italian Istituto Nazionale di Fisica Nucleare (INFN).

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