J
J. Alarja
Researcher at Joseph Fourier University
Publications - 7
Citations - 258
J. Alarja is an academic researcher from Joseph Fourier University. The author has contributed to research in topics: Charged particle & Nucleon. The author has an hindex of 6, co-authored 7 publications receiving 256 citations.
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Journal ArticleDOI
Charged particles identification with a CsI(Tl) scintillator
J. Alarja,A. Dauchy,A. Giorni,C. Morand,E. Pollaco,P. Stassi,R. Billerey,B. Chambon,Brigitte Cheynis,D. Drain,C. Pastor +10 more
TL;DR: In this paper, a CsI(Tl) scintillator with two light decay components is used to detect and identify p, d, t, 3 He and α particles with a low energy threshold.
Journal ArticleDOI
Temperatures and excitation energies of hot nuclei in the reactions of 32S+Ag and 16O+Ag at 30 MeV/nucleon.
R. Wada,D. Fabris,K. Hagel,G. Nebbia,Y. Lou,M. Gonin,J. B. Natowitz,R. Billerey,Brigitte Cheynis,A. Demeyer,D. Drain,D. Guinet,C. Pastor,L. Vagneron,K. Zaid,J. Alarja,A. Giorni,D. Heuer,C Morand,B. Viano,C. Mazur,C. Ng,S. Leray,R. Lucas,M. Ribrag,E. Tomasi +25 more
TL;DR: From the energy spectra and multiplicities of particles emitted from a fusion-like source the initial temperatures of the primary composite nuclei are determined and suggest that a plateau temperature near 6.5 MeV is reached above excitation energies of 3 MeV/nucleon.
Journal ArticleDOI
The particle detector array AMPHORA
D. Drain,A. Giorni,D. Hilscher,C. Ristori,J. Alarja,G. Barbier,R. Bertholet,R. Billerey,B. Chambon,Brigitte Cheynis,J. Crançon,A. Dauchy,P. Désesquelles,A. Fontenille,L. Guyon,D. Heuer,Annick Lleres,M. Maurel,E. Monnand,C. Morand,H. Nifenecker,C. Pastor,J. Pouxe,H. Rossner,J. Saint-Martin,F. Schussler,P. Stassi,M. Tournier,J.B. Viano +28 more
TL;DR: A 4π-multidetector consisting of 140 CsI(Tl) detectors has been designed and built to be used for detecting and identifying either light charged particles (with a detection threshold of about 0.4 MeV/nucleon) and neutrons or light heavy ions.
Journal ArticleDOI
α-Emission temperatures, coulomb instabilities and nuclear cracking
D. Fabris,K. Hagel,J. B. Natowitz,G. Nebbia,R. Wada,R. Billerey,Brigitte Cheynis,A. Demeyer,D. Drain,D. Guinet,C. Pastor,L. Vagneron,K. Zaid,J. Alarja,A. Giorni,D. Heuer,C. Morand,B. Viano,C. Mazur,C. Ngô,S. Leray,R. Lucas,M. Ribrag,E. Tomasi +23 more
TL;DR: The α-emission temperatures of medium mass nuclei with masses near 140, determined at excitation energies from 2 to 4.3 MeV/nucleon, suggest a rapid increase in the heat capacity of the composite system consistent with model predictions of the onset of a cracking phase transition or fragmentation.
Journal ArticleDOI
Mechanisms of non-equilibrium light-particle emission in 32S + Ag reactions at 30 A · MeV☆
R. Wada,M. Gonin,M. Gui,K. Hagel,Y. Lou,D. Utley,J. B. Natowitz,G. Nebbia,D. Fabris,R. Billerey,Brigitte Cheynis,A. Demeyer,D. Drain,D. Guinet,C. Pastor,L. Vagneron,K. Zaid,J. Alarja,A. Giorni,D. Heuer,C. Morand,B. Viano,C. Mazur,C. Ngô,S. Leray,R. Lucas,M. Ribrag,E. Tomasi +27 more
TL;DR: In this article, the energy spectra of light charged particles (Z = 1,2) observed at θLP = 5°−150° in coincidence with fragments of Z = 5−14 at ± 9° are examined.