KADoNiS- The Karlsruhe Astrophysical Database of Nucleosynthesis in Stars

Dillmann, I.; Heil, M.; Käppeler, F.; Plag, R.; Rauscher, T.; Thielemann, Friedrich‐Karl

doi:10.1063/1.2187846

Cited by 158 publications

(225 citation statements)

References 9 publications

Supporting

Mentioning

211

Contrasting

Unclassified

Order By: Relevance

“…[50]. Nevertheless, at 30 keV stellar temperature, the total MACS value found for the 176 Lu(n,γ) reaction in this work is 1647±5 mb which is still in agreement with the KADONIS [51,52] adopted value from [5], 1639±14 mb, and relatively higher than Bao's value, 1532±69 mb [13].…”

Section: Maxwellian-averaged (Nγ) Cross Sectionssupporting

confidence: 67%

Radiative neutron capture cross sections onLu176at DANCE

et al. 2016

View full text Add to dashboard Cite

The cross section of the neutron capture reaction 176 Lu(n,γ) has been measured for a wide incident neutron energy range with the Detector for Advanced Neutron Capture Experiments at the Los Alamos Neutron Science Center. The thermal neutron capture cross section was determined to be (1967±137) b for one of the Lu natural isotopes, 176 Lu. The resonance part was measured and compared to the Mughabghab's atlas using the R-matrix code, SAMMY. At higher neutron energies the measured cross sections are compared to ENDF/B-VII.1, JEFF-3.2 and BRC evaluated nuclear data. The Maxwellian averaged cross sections in a stellar plasma for thermal energies between 5 keV and 100 keV were extracted using these data.

show abstract

Section: Maxwellian-averaged (Nγ) Cross Sectionssupporting

confidence: 67%

Radiative neutron capture cross sections onLu176at DANCE

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The Maxwellianaveraged cross section of the capture reaction is calculated in the thermal energy kT from 1 to 1000 keV, combining with the resolved resonance data of JENDL-4.0. The result is shown in Figure 14, comparing with the recommended values taken from KADoNiS database [53] and two theoretical calculations done by Käppeler et al [54] and Rauscher and Thielemann [55]. The Maxwellian-averaged cross section of JENDL-4.0 is relatively smaller than the values both of the KADoNiS and two theoretical values in the thermal energy region less than kT = 300 keV.…”

Section: Evaluated Results Of 143 Prmentioning

confidence: 84%

Evaluation of neutron nuclear data of praseodymium-141 and -143

Minato

2013

Journal of Nuclear Science and Technology

View full text Add to dashboard Cite

For the next version of JENDL general purpose file, neutron nuclear data on 141,143 Pr are evaluated considering cross sections and spectra provided from experiments in the fast neutron energy region up to 20 MeV. Total and elastic cross sections are derived from optical model. Pre-equilibrium and direct-reaction processes are taken into account in addition to the compound process. The statistical model is applied to calculate the cross sections above the resolved resonance region. For unstable 143 Pr nuclide having less experimental data, we use the same parameters as 141 Pr for mass-dependent and -independent terms in the optical potential. The resolved resonance parameter remains unchanged from JENDL-4.0. The present evaluations give consistent results with experimental data, reflecting newly measured one. The evaluated data are compiled in ENDF-6 format for the next version of JENDL.Keywords: evaluation; neutron nuclear data; cross section; spectrum; fission product; praseodymium-141; praseodymium-143 IntroductionThe fourth version of the Japanese Evaluated Nuclear Data Library (JENDL-4.0 [1]) was released in May 2010. In the library, 215 nuclides are regarded as fission products in the region from Z = 30 to 68. The resolved and unresolved resonance parameters for all of those nuclides were examined by reviewing experimental data; however, the fast neutron region above the resolved resonances was re-evaluated only for 174 nuclides. The remaining 41 nuclides, which were not examined for the release of JENDL-4.0, need to be re-evaluated for the next version of JENDL general purpose file.Praseodymium-141 and -143, which are the target isotopes of the present work, are included in the remaining 41 nuclides. As mentioned, the resolved resonance parameters were re-examined in JENDL-4.0; however, cross sections in the fast neutron region were not revised. The last update was performed in JENDL-3.2 released at 1994, and the calculation was performed by the statistical-model code CASTHY [2] with the competing reaction using PEGASUS [3]. Several experimental data measured after the release of JENDL-3.2, which show a different value from old one referred by JENDL-4.0 (i.e., −3.2), also inclines us re-evaluation. The purpose of this study is to improve the nuclear data in the fast neutron

show abstract

“…Experimental uncertainties U exp were considered for g.s. contributions when available, taken from [2,9,10]. Theoretical uncertainties U th for g.s.…”

Section: Rate Variationmentioning

confidence: 99%

Production Uncertainties of p-Nuclei in the γ-Process in Massive Stars Using a Monte Carlo Approach

Rauscher

Nishimura

Hirschi

et al. 2017

Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016)

View full text Add to dashboard Cite

Proton-rich nuclei, the so-called p-nuclei, are made in photodisintegration processes in outer shells of massive stars in the course of the final supernova explosion. Nuclear uncertainties in the production of these nuclei have been quantified in a Monte Carlo procedure. Bespoke temperature-dependent uncertainties were assigned to different types of reactions involving nuclei from Fe to Bi and all rates were varied randomly within the uncertainties. The resulting total production uncertainties of the p-nuclei are below a factor of two, with few exceptions. Key reactions dominating the final uncertainties have been identified in an automated procedure using correlations between rate and abundance uncertainties. Our results are compared to those of a previous study manually varying reaction rates.

show abstract

KADoNiS- The Karlsruhe Astrophysical Database of Nucleosynthesis in Stars

Cited by 158 publications

References 9 publications

Radiative neutron capture cross sections onLu176at DANCE

Radiative neutron capture cross sections onLu176at DANCE

Evaluation of neutron nuclear data of praseodymium-141 and -143

Production Uncertainties of p-Nuclei in the γ-Process in Massive Stars Using a Monte Carlo Approach

Contact Info

Product

Resources

About