Cross section measurements for 141Pr(n,γ)142Pr reaction at neutron energies from 13.5 to 14.8 MeV

Luo, Junhua; Han, Jie; Liu, Rong; Li, Jiang

doi:10.1007/s10967-012-1778-y

Cited by 3 publications

(1 citation statement)

References 37 publications

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“…The neutron energies in the measurements were determined as described by Luo et al [22] and were also calculated by the following formula [23][24][25]:…”

Section: Determination Of the Incident Neutron Energymentioning

confidence: 99%

Cross sections for d-³H neutron interactions with samarium isotopes

Luo

et al. 2016

Radiochimica Acta

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The cross sections for (n,x) reactions on samarium isotopes were measured at (d-T) neutron energies of 13.5 and 14.8 MeV with the activation technique. Samples were activated along with Nb and Al monitor foils to determine the incident neutron flux. Theoretical calculations of excitation functions were performed using the nuclear model codes TALYS-1.6 and EMPIRE-3.2 Malta with default parameters, at neutron energies varying from the reaction threshold to 20 MeV. The results were discussed and compared with experimental data found in the literature. At neutron energies 13.5 and 14.8 MeV, the cross sections of the 149 Sm(n,p) 149 Pm reaction are reported for the first time. The cross sections of the 150 Sm(n,p) 150 Pm, 144 Sm(n,p) 144 Pm, 152 Sm(n, ) 149 Nd and 144 Sm(n, ) 141 Nd reactions at different neutron energies reported in the present work can be added as new data in the nuclear databases.

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“…The neutron energies in the measurements were determined as described by Luo et al [22] and were also calculated by the following formula [23][24][25]:…”

Section: Determination Of the Incident Neutron Energymentioning

confidence: 99%

Cross sections for d-³H neutron interactions with samarium isotopes

Luo

et al. 2016

Radiochimica Acta

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Measurements of activation cross-sections for the 101Ru(n,p)101Tc reaction for neutrons with energies between 13 and 15 MeV

Luo

Han

Liu

et al. 2012

J Radioanal Nucl Chem

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

Minato

2013

Journal of Nuclear Science and Technology

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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

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Cross section measurements for 141Pr(n,γ)142Pr reaction at neutron energies from 13.5 to 14.8 MeV

Cited by 3 publications

References 37 publications

Cross sections for d-³H neutron interactions with samarium isotopes

Cross sections for d-³H neutron interactions with samarium isotopes

Measurements of activation cross-sections for the 101Ru(n,p)101Tc reaction for neutrons with energies between 13 and 15 MeV

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

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Cross section measurements for 141Pr(n,γ)142Pr reaction at neutron energies from 13.5 to 14.8 MeV

Cited by 3 publications

References 37 publications

Cross sections for d-3H neutron interactions with samarium isotopes

Cross sections for d-3H neutron interactions with samarium isotopes

Measurements of activation cross-sections for the 101Ru(n,p)101Tc reaction for neutrons with energies between 13 and 15 MeV

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

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Cross sections for d-³H neutron interactions with samarium isotopes

Cross sections for d-³H neutron interactions with samarium isotopes