In several nuclear applications, scintillators, coupled with a photomultiplier and pulse amplifier, are used in order to detect high energy particles, i.e. neutrons and gamma rays. The different particles incident on the scintillator produce electrical pulses having different shape; moreover, the amplitude of these signals is related to the particles energy. The electrical pulses of the scintillator chain are acquired by digital systems that, generally, perform a triggered acquisition consisting of a stream of pulse windows.The aim of this study is the development of a simplified clustering algorithm able to produce reference patterns in compliance with the pattern recognition algorithm based on the matched filter technique, starting from a stream of pulses generated by particles having different energy and type.This paper contains a general description of the clustering algorithm and of the main customizations performed for the scintillator signals. In order to test in real case the efficiency, the algorithm has been applied on the data acquired during a radiation test performed at Frascati Neutron Generator for Stilbene scintillator. The results show that this algorithm works properly, deriving the centroids of the clusters representing the neutron and gamma shapes, together with their occurrences in the analysed data stream.

Pollastrone, F., Cardarilli, G.c., Riva, M., Costa Pereira, R., Fernandes, A., Cruz, N., et al. (2019). A clustering algorithm for scintillator signals applied to neutron and gamma patterns identification. FUSION ENGINEERING AND DESIGN, 146, 2110-2114 [10.1016/j.fusengdes.2019.03.117].

A clustering algorithm for scintillator signals applied to neutron and gamma patterns identification

Pollastrone F.;Cardarilli G. C.;Pompili F.;Belli F.
2019-01-01

Abstract

In several nuclear applications, scintillators, coupled with a photomultiplier and pulse amplifier, are used in order to detect high energy particles, i.e. neutrons and gamma rays. The different particles incident on the scintillator produce electrical pulses having different shape; moreover, the amplitude of these signals is related to the particles energy. The electrical pulses of the scintillator chain are acquired by digital systems that, generally, perform a triggered acquisition consisting of a stream of pulse windows.The aim of this study is the development of a simplified clustering algorithm able to produce reference patterns in compliance with the pattern recognition algorithm based on the matched filter technique, starting from a stream of pulses generated by particles having different energy and type.This paper contains a general description of the clustering algorithm and of the main customizations performed for the scintillator signals. In order to test in real case the efficiency, the algorithm has been applied on the data acquired during a radiation test performed at Frascati Neutron Generator for Stilbene scintillator. The results show that this algorithm works properly, deriving the centroids of the clusters representing the neutron and gamma shapes, together with their occurrences in the analysed data stream.
2019
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore ING-INF/01 - ELETTRONICA
English
Clustering algorithm
Digital signal processing
Stilbene scintillator
Neutron and gamma discrimination
Pattern recognition
Pollastrone, F., Cardarilli, G.c., Riva, M., Costa Pereira, R., Fernandes, A., Cruz, N., et al. (2019). A clustering algorithm for scintillator signals applied to neutron and gamma patterns identification. FUSION ENGINEERING AND DESIGN, 146, 2110-2114 [10.1016/j.fusengdes.2019.03.117].
Pollastrone, F; Cardarilli, Gc; Riva, M; Costa Pereira, R; Fernandes, A; Cruz, N; Podda, S; Pompili, F; Pillon, M; Angelone, M; Marocco, D; Belli, F...espandi
Articolo su rivista
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/292832
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 3
social impact