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The results of the photoproduction of isomeric pairs from the ({\gamma},xn) and ({\gamma},pxn) reactions on nuclei from Zr up to Ta at the bremsstrahlung end-point energy range 30-100 MeV are systematized. Measurements were performed at the…

Systematic study of theoretical estimation of nuclear cross section of charged particle induced reactions on rare earth nuclei has been carried out. The production cross section of the $^{150,149,148,146,144,143,141}$Pm and $^{149,147}$Nd…

核理论 · 物理学 2024-09-20 A. Saha

A new empirical formula has been developed that describes the $({\gamma}, n)$ nuclear reaction cross sections for the isotopes with $Z \geq 60$. The results were supported by calculations using TALYS - 1.6, EMPIRE - 3.2.2 nuclear modular…

核理论 · 物理学 2017-04-26 Rajnikant Makwana , S. Mukherjee , Jian-Song Wang , Zhi-Qiang Chen

The photoneutron reaction $^{181}\rm{Ta}(\gamma,3n)^{178m,g}\rm{Ta}$ was investigated with the beam from the NSC KIPT electron linear accelerator LUE-40. The measurements were performed using the residual $\gamma$-activity method. The…

Isotopic studies of meteorites have provided ample evidence for the presence of short-lived radionuclides (SLRs) with half-lives of less than 100 Myr at the time of the formation of the solar system. The origins of all known SLRs is heavily…

The isomeric ratios of $^{198}$Au, $^{197}$Hg and $^{195}$Hg produced by $\alpha$-particle induced reactions on natural platinum were investigated experimentally up to 29 MeV by using the standard stacked foil activation technique and…

核实验 · 物理学 2024-09-30 Naohiko Otuka , Sandor Takacs , Masayuki Aikawa , Shuichiro Ebata , Hiromitsu Haba

The proton capture (p, $\gamma$) cross-sections for eight different atomic nuclei in the mass region A=75-110 were calculated within the nuclear reaction model code TALYS. For all the reactions, we tested different combinations of inputs…

Nuclear reaction rates of astrophysical applications are traditionally determined on the basis of Hauser-Feshbach reaction codes. These codes adopt a number of approximations that have never been tested, such as a simplified width…

天体物理学 · 物理学 2015-05-13 S. Goriely , S. Hilaire , A. J. Koning

The sensitivity of underground experiments searching for rare events such as dark matter, neutrino interactions or several beyond the standard model phenomena is often limited by the background caused by neutrons from spontaneous fission…

核实验 · 物理学 2025-07-22 Mihaela Parvu , Piotr Krawczun , Vitaly A. Kudryavtsev

Radio-isotopes produced via proton induced reaction holds special significance regarding nuclear medicine, astrophysical p-process, theragnostic and diagnostic processes. $^{76}$Br, $^{80m}$Br and $^{61}$Cu are positron emitter and they are…

核理论 · 物理学 2022-07-20 Sourav Mondal , A. Gandhi , Rebecca Pachuau

Astrophysical reaction rates, which are mostly derived from theoretical cross sections, are necessary input to nuclear reaction network simulations for studying the origin of $p$ nuclei. Past experiments have found a considerable difference…

The excitation functions for (n,p) reactions from reaction threshold to 20 MeV on four stable Iron isotopes viz; 54Fe,56Fe,57Fe and 58Fe were calculated using Talys-1.2 nuclear model code, this essentially involves fitting a set of global…

核理论 · 物理学 2011-08-15 J Joseph Jeremiah , Damewan Suchiang , B. M. Jyrwa

Activation cross-sections for production of 162m,161,155Ho,165,159,157,155Dy and 161,160,156,155Tb radionuclides in deuteron induced nuclear reactions on elemental dysprosium were measured up to 50 MeV for practical application and the test…

核实验 · 物理学 2014-02-06 F. Tárkányi , F. Ditrói , S. Takács , J. Csikai , A. Hermanne , A. V. Ignatyuk

Activation cross-sections data of longer-lived products of proton induced nuclear reactions on dysprosium were extended up to 65 MeV by using stacked foil irradiation and gamma spectrometry experimental methods. Experimental cross-sections…

核实验 · 物理学 2016-02-09 F. Tárkányi , F. Ditrói , S. Takács , A. Hermanne , A. V. Ignatyuk

Additional experimental cross sections were deduced for the long half-life activation products (172Hf and 173Lu) from the alpha particle induced reactions on ytterbium up to 38 MeV from late, long measurements and for 175Yb, 167Tm from a…

核实验 · 物理学 2018-03-22 F. Tárkányi , F. Ditrói , S. Takács , A. Hermanne , B. Király

Results of the investigations of the yield of high-spin and low-spin isomers in reactions $^{41}$K($\alpha $,n)$^{44}$Sc, $^{86}$Sr ($\alpha $,n)$^{89}$Zr, $^{112}$Sn($\alpha$,n)$^{115}$Te, and $^{134}$Ba($\alpha$,n)$^{137}$Ce in the energy…

核实验 · 物理学 2022-02-11 T. V. Chuvilskaya

For validation and development of codes and for modeling isotope production in high power accelerators and APT Materials studies, we have produced experimental, calculated, and evaluated activation libraries for interaction of nucleons with…

核理论 · 物理学 2007-05-23 S. G. Mashnik , A. J. Sierk , K. A. Van Riper , W. B. Wilson

Double-differential cross sections for light charged particle production (up to A=4) were measured in 96 MeV neutron-induced reactions, at TSL laboratory cyclotron in Uppsala (Sweden). Measurements for three targets, Fe, Pb, and U, were…

The isomeric ratios and cross sections were measured up to 50 MeV for production of $^{198m,g}$Au, $^{197m,g}$Hg, $^{195m,g}$Hg and other Hg, Au and Pt radionuclides in irradiation of natural platinum by alpha-particles using the stacked…

The production cross-section of $^{68}$Ge, $^{69}$Ge, $^{65}$Zn and $^{67}$Ga radioisotopes from alpha-induced nuclear reaction with $^{nat}$Zn have been measured using the stacked foil activation technique followed by the off-line…

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