Journal ArticleDOI
Detection Efficiency of the Neutron Modular Detector Demon and Related Characteristics
I. Tilquin,Youssef El Masri,M. Parlog,Philippe Collon,M. Hadri,Th. Keutgen,J. Lehmann,Pol Leleux,Peter Lipnik,Alain Ninane,Francis Hanappe,G. Bizard,Dominique Durand,P. Mosrin,Jean Péter,R. Regimbart,B. Tamain +16 more
TLDR
In this article, the relative weight of the interaction channel C-12(n,n'gamma) in the organic liquid scintillator was determined experimentally, taking into account observed saturation effects in the detector output, a calibration method was proposed for high light outputs, based on the energy loss of cosmic ray muons.Abstract:
DEMON is a detector array for neutrons emitted in heavy ion induced reactions at low to intermediate energies. The neutron detection efficiency of some single DEMON modules has been measured in the energy range 8-21 MeV, with detection thresholds down to 0.1 MeV equivalent-electron (MeVee). The influence on the efficiency of cross talk, neutron-gamma and neutron-charged particle discrimination techniques was found to be negligibly small. Monte Carlo simulations have been performed and are compared with the experimental data. The relative weight of the interaction channel C-12(n,n'gamma) in the organic liquid scintillator was determined experimentally. Taking into account observed saturation effects in the detector output, a calibration method is proposed for high light outputs, based on the energy loss of cosmic ray muons.read more
Citations
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Journal ArticleDOI
Pulse shape analysis of liquid scintillators for neutron studies
S. Marrone,D. Cano-Ott,Nicola Colonna,C. Domingo,F. Gramegna,E. González,F. Gunsing,Michael Heil,F. Käppeler,P. F. Mastinu,P. M. Milazzo,T. Papaevangelou,P. Pavlopoulos,Ralf Plag,Rene Reifarth,G. Tagliente,J. L. Tain,K. Wisshak +17 more
TL;DR: In this article, a 1-parameter fitting procedure is proposed to extract information on the particle type and energy, and the performance of this method in terms of energy resolution and n=g discrimination is analyzed, together with the capability to identify and resolve pile-up events.
Journal ArticleDOI
Energy levels of light nuclei A = 12
TL;DR: A review of evidence on the properties of the A=12 nuclei is given in this article, with emphasis on material leading to information about the structure of A = 12 systems.
Journal ArticleDOI
Shell effects in fission and quasi-fission of heavy and superheavy nuclei
M. G. Itkis,J. A¨ysto¨,S. Beghini,A. A. Bogachev,L. Corradi,O. Dorvaux,A. Gadea,Giorgio Giardina,F. Hanappe,I. M. Itkis,Marian Jandel,J. Kliman,S. Khlebnikov,G. N. Kniajeva,N. A. Kondratiev,E. M. Kozulin,L. Krupa,A. Latina,Th. Materna,G. Montagnoli,Yu. Ts. Oganessian,I. V. Pokrovsky,E. V. Prokhorova,Neil Rowley,V. A. Rubchenya,A. Ya. Rusanov,R. N. Sagaidak,Fernando Scarlassara,A. M. Stefanini,L. Stuttge,Suzana Szilner,M. Trotta,W. H. Trzaska,D. N. Vakhtin,A. M. Vinodkumar,V.M. Voskressenski,Valery Zagrebaev +36 more
TL;DR: The results of the experiments aimed at the study of fission and quasi-fission processes inthereactions 12C+204Pb, 48Ca+144,154Sm, 168Er, 208Pb and 238U, 244Pu, 248Cm, and 64Ni+186W, 242Pu are presented in this paper.
Journal ArticleDOI
The CORSET time-of-flight spectrometer for measuring binary products of nuclear reactions
E. M. Kozulin,A. A. Bogachev,M. G. Itkis,I. M. Itkis,G. N. Knyazheva,N. A. Kondratiev,Ľ. Krupa,I. V. Pokrovsky,E. V. Prokhorova +8 more
TL;DR: The CORSET time-of-flight spectrometer as discussed by the authors was developed at the Flerov Laboratory of Nuclear Reactions of the Joint Institute for Nuclear Research (Dubna, Russia) for investigating binary products of nuclear reactions.
Journal ArticleDOI
The 8He and 10He spectra studied in the (t, p) reaction
M. S. Golovkov,L. V. Grigorenko,G.M. Ter-Akopian,A. S. Fomichev,Yu. Ts. Oganessian,V. A. Gorshkov,S. A. Krupko,A. M. Rodin,S. I. Sidorchuk,R. S. Slepnev,S. V. Stepantsov,R. Wolski,Dan-Yang Pang,V. Chudoba,A.A. Korsheninnikov,E. A. Kuzmin,E. Yu. Nikolskii,B. G. Novatskii,D. N. Stepanov,P. Roussel-Chomaz,W. Mittig,Alain Ninane,F. Hanappe,L. Stuttge,A. A. Yukhimchuk,V. V. Perevozchikov,Yu. I. Vinogradov,S. K. Grishechkin,S. V. Zlatoustovskiy +28 more
TL;DR: In this paper, low-lying spectra of 8He and 10He nuclei were studied in the 3H 6He, p)8He and 3H 8He,p)10He transfer reactions, and evidence for a 8He state at about 7.5 MeV was obtained.
References
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Journal ArticleDOI
Techniques for Nuclear and Particle Physics Experiments
William R. Leo,David G. Haase +1 more
Journal ArticleDOI
Improved predections of neutron detection efficiency for hydrocarbon scintillators from 1 MeV to about 300 MeV
TL;DR: Several improvements have been made to the Monte-Carlo neutron detector efficiency code of Stanton to provide improved agreement with several different detector efficiency measurements as mentioned in this paper, including a re-adjustment of the inelastic cross sections for neutron-induced reactions on carbon, adoption of new light-response functions, use of relativistic kinematics, and exact determination of light deposited by escaping charged particles.
Journal ArticleDOI
Neutron Spectra of 214Am/B, 241Am/Be, 241Am/F, 242Cm/Be, 238Pu/13C and 252Cf isotopic neutron sources
TL;DR: In this article, the spectrum from 241 Am/F showed fine structure not previously reported eleswhere, which was attributed to both differences in source and spectrometer desings.
Journal ArticleDOI
The response of NE-228A, NE-228, NE-224, and NE-102 scintillators to protons from 2.43 to 19.55 MeV
TL;DR: In this paper, the neutrons were obtained from the T(d, n)α reaction and the measured response (in units of electron energy) for protons above 5 MeV in NE- 102 is about 8% higher than that assumed in popular computer programs for calculating the neutron detection efficiency of plastic scintillators.
Response of NE-228A, NE-228, NE-224, and NE-102 scintillators to protons from 2. 43 to 19. 55 MeV
TL;DR: A T(d,n)..cap alpha.. neutron source at the Ohio University tanden Van de Graaff accelerator was used to produce a coincidence in the detector setup and the recoil proton pulse was recorded.
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