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A bright collimated neutron source is an essential tool for global security missions and fundamental scientific research. In this paper, we study a compact high-yield and high-angular-flux neutron source utilizing the break-up reaction of…

The energy dependent 37Ar(n,p)37Cl and 37Ar(n,alpha)34S reaction cross sections were determined for the first time in an experimental effort involving three large facilities: the cyclotron of the UCL (Louvain-la-Neuve, Belgium) where…

Understanding the neutron background is essential for determining the neutron yield from nuclear reactions. In the analysis presented here, the shadow bars are placed in front of neutron detectors to determine the energy dependent neutron…

Background: Neutron-induced reactions are a significant concern for experiments that require extremely low levels of radioactive backgrounds. Measurements of gamma-ray production cross sections over a wide energy range will help to predict…

Recent measurements of reactor-produced antineutrino fluxes and energy spectra are inconsistent with models based on measured thermal fission beta spectra. In this paper, we examine the dependence of antineutrino production on fission…

Nuclear Theory · Physics 2018-05-09 B. R. Littlejohn , A. Conant , D. A. Dwyer , A. Erickson , I. Gustafson , K. Hermanek

In this review, we emphasize the interplay between astrophysical observations, modeling, and nuclear physics laboratory experiments. Several important nuclear cross sections for astrophysics have long been identified e.g.…

Nuclear Experiment · Physics 2016-05-26 Alain Coc , Fairouz Hammache , Juergen Kiener

Spallation-induced fission reactions, in combination with state-of-the-art dynamical calculations, provide a robust framework for studying the nuclear dissipation mechanism in nuclear matter over a wide range of deformations. Experimental…

Double-differential cross sections for light-ion (p, d, t, He-3 and alpha) production in oxygen, induced by 96 MeV neutrons are reported. Energy spectra are measured at eight laboratory angles from 20 degrees to 160 degrees in steps of 20…

Neutrino-driven winds following core collapse supernovae have been proposed as a suitable site where the so-called light heavy elements (between Sr to Ag) can be synthetized. For moderately neutron-rich winds, ($\alpha,n$) reactions play a…

Solar and Stellar Astrophysics · Physics 2020-12-09 Jorge Pereira , Almudena Arcones , Julia Bliss , Fernando Montes

Core-collapse supernova (CCSN) explosions powered by rotation and magnetic fields present an interesting astrophysical site for nucleosynthesis that potentially contributes to the production of $r$-process elements. Here we present yields…

High Energy Astrophysical Phenomena · Physics 2024-07-11 Shuai Zha , Bernhard Müller , Jade Powell

The nuclear reaction network is usually studied via precise calculation of differential equation sets, and much research interest has been focused on the characteristics of nuclides, such as half-life and size limit. In this paper, however,…

Nuclear Theory · Physics 2016-08-30 Liang Zhu , Yu-Gang Ma , Qu Chen , Ding-Ding Han

The 235U(n,f) cross section was measured in a wide energy range (25 meV - 170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,alpha) standard reactions, with high resolution and accuracy, with a setup based on a stack of…

Nuclear Experiment · Physics 2022-02-14 TOF collaboration , M. Mastromarco , S. Amaducci , N. Colonna , P. Finocchiaro , L. Cosentino , O. Aberle , J. Andrzejewski , L. Audouin , M. Bacak , J. Balibrea , M. Barbagallo , F. Bečvář , E. Berthoumieux , J. Billowes , D. Bosnar , A. Brown , M. Caamaño , F. Calviño , M. Calviani , D. Cano-Ott , R. Cardella , A. Casanovas , F. Cerutti , Y. H. Chen , E. Chiaveri , G. Cortés , M. A. Cortés-Giraldo , L. A. Damone , M. Diakaki , C. Domingo-Pardo , R. Dressler , E. Dupont , I. Durán , B. Fernández-Domínguez , A. Ferrari , P. Ferreira , V. Furman , K. Göbel , A. R. García , A. Gawlik , S. Gilardoni , T. Glodariu , I. F. Gonçalves , E. González-Romero , E. Griesmayer , C. Guerrero , F. Gunsing , H. Harada , S. Heinitz , J. Heyse , D. G. Jenkins , E. Jericha , F. Käppeler , Y. Kadi , A. Kalamara , P. Kavrigin , A. Kimura , N. Kivel , I. Knapova , M. Kokkoris , M. Krtička , D. Kurtulgil , E. Leal-Cidoncha , C. Lederer , H. Leeb , J. Lerendegui-Marco , S. Lo Meo , S. J. Lonsdale , D. Macina , A. Manna , J. Marganiec , T. Martínez , A. Masi , C. Massimi , P. Mastinu , E. A. Maugeri , A. Mazzone , E. Mendoza , A. Mengoni , P. M. Milazzo , F. Mingrone , A. Musumarra , A. Negret , R. Nolte , A. Oprea , N. Patronis , A. Pavlik , J. Perkowski , I. Porras , J. Praena , J. M. Quesada , D. Radeck , T. Rauscher , R. Reifarth , C. Rubbia , J. A. Ryan , M. Sabaté-Gilarte , A. Saxena , P. Schillebeeckx , D. Schumann , P. Sedyshev , A. G. Smith , N. V. Sosnin , A. Stamatopoulos , G. Tagliente , J. L. Tain , A. Tarifeño-Saldivia , L. Tassan-Got , S. Valenta , G. Vannini , V. Variale , P. Vaz , A. Ventura , V. Vlachoudis , R. Vlastou , A. Wallner , S. Warren , C. Weiss , P. J. Woods , T. Wright , P. Žugec

The detailed understanding of the antineutrino emission from research reactors is mandatory for any high sensitivity experiments either for fundamental or applied neutrino physics, as well as a good control of the gamma and neutron…

Alpha from natural radioactivity may interact with a nucleus and emit a neutron. The reaction introduces background to the liquid scintillator (LS) based neutrino experiments. In the LS detector, alpha comes from 238U, 232Th and 210Po decay…

Instrumentation and Detectors · Physics 2014-02-13 Jie Zhao , Zeyuan Yu , Jianglai Liu , Xiaobo Li , Feihong Zhang , Dongmei Xia

Fortran subroutines have been written to simulate the production of fission neutrons from the spontaneous fission of 252Cf and 240Pu, and from the thermal neutron induced fission of 239Pu and 235U. The names of these four subroutines are…

Nuclear Theory · Physics 2014-09-19 J. P. Lestone

Nuclear reaction data play an important role in nuclear reactor, medical, and fundamental science and national security applications. The wealth of information is stored in internally adopted ENDF-6 and EXFOR formats. We present a complete…

Solar and Stellar Astrophysics · Physics 2011-08-25 B. Pritychenko

We present the results of fully dynamical r-process network calculations for the ejecta of neutron star mergers (NSMs). The late stages of the inspiral and the final violent coalescence of a neutron star binary have been calculated in…

Astrophysics · Physics 2009-10-31 S. Rosswog , C. Freiburghaus , F. -K. Thielemann

We evaluate the impact of using sets of fission yields given by the GEF code for spontaneous (sf), neutron-induced ((n,f)), and beta-delayed (betadf) fission processes which take into account the approximate initial excitation energy of the…