HAL : in2p3-00656422, version 1

DOI : 10.1016/j.nima.2011.10.061

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Nuclear Instruments and Methods in Physics Research Research: Accelerators, Spectrometers, Detectors and Associated Equipment 664 (2012) 251-263

Particle identification using the (DELTA)E-E technique and pulse shape discrimination with the silicon detectors of the FAZIA project

S. Carboni, S. Barlini, L. Bardelli, N. Le Neindre1, M. Bini, B. Borderie2, R. Bougault1, G. Casini, P. Edelbruck2, A. Olmi, G. Pasquali, G. Poggi, M.F. Rivet2, A.A. Stefanini, G. Baiocco, R. Berjillos, E. Bonnet3, M. Bruno, A. Chbihi3, I. Cruceru, M. Degerlier, J.A. Dueñas, E. Galichet2, F. Gramegna, A. Kordyasz, T. Kozik, V.L. Kravchuk, O. Lopez1, T. Marchi, I. Martel, L. Morelli, M. Pârlog1, H. Petrascu, E. Rosato, V. Seredov2, E. Vient1, M. Vigilante, R. Alba, D. Santonocito, C. Maiolino

FAZIA Collaboration(s)

(2012)

The response of silicon-silicon-CsI(Tl) and silicon-CsI(Tl) telescopes to fragments produced in nuclear interactions has been studied. The telescopes were developed within the FAZIA collaboration. The capabilities of two methods are compared: (a) the standard ΔE-E technique and (b) the digital Pulse Shape Analysis technique (for identification of nuclear fragments stopped in a single Si-layer). In a test setup, nuclear fragments covering a large range in nuclear charge, mass and energy were detected. They were produced in nuclear reactions induced by a 35A MeV beam of 129Xe impinging on various targets. It was found that the ΔE-E correlations allow the identification of all isotopes up to Z∼25. With the digital Pulse Shape Analysis it is possible to fully distinguish the charge of stopped nuclei up to the maximum available Z (slightly over that of the beam, Z=54).

1 :	LPCC - Laboratoire de Physique Corpusculaire de Caen
2 :	IPNO - Institut de Physique Nucléaire d'Orsay
3 :	GANIL - Grand Accélérateur National d'Ions Lourds

équipe(s) de recherche : Physique théorique Dynamique et thermodynamique nucléaire

Thème(s)

:

Physique/Physique Nucléaire Expérimentale

Mot(s)-clé(s) : Pulse shape discrimination – ΔE-E – Silicon detector – Charge signal – Current signal

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Contributeur : Sandrine Guesnon <>

Soumis le : Mercredi 4 Janvier 2012, 11:42:49

Dernière modification le : Mercredi 4 Janvier 2012, 15:43:08