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In the frame of a systematic study of activation cross sections of deuteron induced nuclear reactions on rare earths, the reactions on neodymium for production of therapeutic radionuclides were measured for the first time. The excitation…

Nuclear Experiment · Physics 2014-11-12 F. Tárkányi , S. Takács , F. Ditrói , A. Hermanne , H. Yamazaki , M. Baba , A. Mohammadi , A. V. Ignatyuk

The distribution function of the relative velocity in a two-body reaction of nonrelativistic uncorrelated particles is derived for general cases of given distribution functions of single particle velocities. The distribution function is…

Cosmology and Nongalactic Astrophysics · Physics 2019-02-13 Motohiko Kusakabe , Toshitaka Kajino , Grant J. Mathews , Yudong Luo

The stellar reaction rates of radiative $\alpha$-capture reactions on heavy isotopes are of crucial importance for the $\gamma$ process network calculations. These rates are usually derived from statistical model calculations, which need to…

Nuclear Experiment · Physics 2018-01-04 T. Szücs , G. G. Kiss , Gy. Gyürky , Zs. Fülöp , Z. Halász , T. Rauscher

A method based on Monte Carlo techniques is presented for evaluating thermonuclear reaction rates. We begin by reviewing commonly applied procedures and point out that reaction rates that have been reported up to now in the literature have…

Solar and Stellar Astrophysics · Physics 2015-05-18 Richard Longland , Christian Iliadis , Art Champagne , Joe Newton , Claudio Ugalde , Alain Coc , Ryan Fitzgerald

New evaluations for several actinoids of the third version of China Evaluated Nuclear Data Library (CENDL-3.1) have been completed during the period between 2000 and 2005. The evaluations are for all neutron induced reactions with Uranium,…

Nuclear Experiment · Physics 2011-09-23 Chen Guo-Chang , Cao Wen-Tian , Yu Bao-Sheng , Tang Guo-You , Shi Zhao-Min , Tao Xi

Updated stellar rates for the reaction 23Mg(p,gamma)24Al are calculated by using all available experimental information on 24Al excitation energies. Proton and gamma-ray partial widths for astrophysically important resonances are derived…

Nuclear Theory · Physics 2008-11-26 H. Herndl , M. Fantini , C. Iliades , P. M. Endt , H. Oberhummer

This review focuses on nuclear reactions in astrophysics and, more specifically, on reactions with light ions (nucleons and alpha particles) proceeding via the strong interaction. It is intended to present the basic definitions essential…

Nuclear Theory · Physics 2015-03-17 T. Rauscher

We formulate a statistical model for description of nuclear composition and equation of state of stellar matter at subnuclear densities and temperature up to 20 MeV, which are expected during the collapse and explosion of massive stars. The…

Nuclear Theory · Physics 2014-11-18 A. S. Botvina , I. N. Mishustin

The theoretical cross section calculations for the astrophysical $p$ process are needed because the most of the related reactions are technically very difficult to be measured in the laboratory. Even if the reaction was measured, most of…

Nuclear Theory · Physics 2017-04-04 C. Yalcin

The reactions that destroy 26Al in massive stars have significance in a number of astrophysical contexts. We evaluate the reaction rates of 26Al(n,p)26Mg and 26Al(n,a)23Na using cross sections obtained from the codes EMPIRE and TALYS. These…

Solar and Stellar Astrophysics · Physics 2011-02-22 Babatunde Oginni , Christian Iliadis , Art Champagne

Low-energy cosmic rays (LECRs) contribute substantially to the energy balance of the interstellar medium. They play also significant role in the heating and chemistry of gas, and, consequently, on the star formation process. Because of the…

High Energy Astrophysical Phenomena · Physics 2021-02-24 Bing Liu , Rui-zhi Yang , Felix Aharonian

A statistical theory of light nucleus reaction (STLN) is proposed to describe both neutron and light charged particle induced nuclear reactions with 1p-shell light nuclei involved. The dynamic of STLN is described by the unified…

Nuclear Theory · Physics 2016-01-20 Xiaojun Sun , Jingshang Zhang

Nuclear reaction rates determine the abundances of isotopes in stellar burning processes. A multitude of reactions determine the reaction flow pattern which is described in terms of reaction network simulations. The reaction rates are…

Instrumentation and Methods for Astrophysics · Physics 2010-11-03 M. Wiescher , T. Rauscher

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 primary aim of experimental nuclear astrophysics is to determine the rates of nuclear reactions taking place in stars in various astrophysical conditions. These reaction rates are important ingredient for understanding the elemental…

Nuclear Experiment · Physics 2019-03-27 Gy. Gyürky , Zs. Fülöp , F. Käppeler , G. G. Kiss , A. Wallner

The abundances of the isotopes of the elements from C to Al produced by the non-explosive CNO, NeNa and MgAl modes of hydrogen burning, as well as by helium burning, are calculated with the thermonuclear rates recommended by the European…

Astrophysics · Physics 2007-05-23 M. Arnould , S. Goriely , A. Jorissen

Through decades of effort in nuclear data development and simulations of reactor neutronics and accelerator transmutation, a collection of reaction data is continuing to evolve with the potential of direct applications to the production of…

Medical Physics · Physics 2007-05-23 M. A. Garland , R. E. Schenter , R. J. Talbert , S. G. Mashnik , W. B. Wilson

The $(n,\alpha)$ reactions play an important role for the energy generation and the synthesis of chemical elements in the stars, as well as for nuclear engineering and medical applications. The aim of this study is to explore the evolution…

Nuclear Theory · Physics 2023-10-11 Sema Kucuksucu , Mustafa Yigit , Nils Paar

A necessary condition for the reliable modelling of the structure or evolution of the stars and of their concomitant nucleosynthesis is the availability of good quality nuclear data in a very wide area of the chart of nuclides. This short…

Astrophysics · Physics 2007-06-11 M. Arnould , M. Katsuma

Activation cross sections of the $^{nat}$Rb (d,xn)$^{87m,85m,85g,83,82}$Sr, $^{nat}$Rb(d,x)$^{86,84,83,82m}$Rb and $^{nat}$Rb(d,x)$^{85m}$Kr nuclear reactions have been measured for the first time through an activation method combining the…

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