Shell-model-based investigation on level density of Xe and Ba isotopes

Chen, Jinbei; Liu, Menglan; Yuan, Cenxi; Chen, Shengli; Shimizu, Noritaka; Sun, Xiao-Dong; Xu, Ruirui; Tian, Yuan

doi:10.1103/physrevc.107.054306

Cited by 8 publications

(2 citation statements)

References 67 publications

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“…Due to the insensitivity † of the damage energy cross section to the average Threshold Displacement Energy (TDE, often denoted by Ed) [8,9], of which the accuracy is often questioned, it is natural to slightly modify the damage energy to [10,11]:…”

Section: Near Threshold Model and Refinementmentioning

confidence: 99%

Improvements on the damage calculations using evaluated nuclear data and NJOY

Chen,

Bernard

2024

EPJ Web of Conf.

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NJOY is the only open-source nuclear data processing code allowing calculating neutron-induced displacement damage cross sections from evaluated nuclear data. However, some issues exist in the NJOY calculation of damage cross sections, including the inconsistency for neutron capture reaction with photon data given in MF6 vs. MF12-MF15, questionable or even incorrect recoil nuclear data in MF6, discrepant damage cross sections using different approaches, and the potential underestimation above 20 MeV due to the storage of nuclear data in MT5. These issues should be addressed by the improvements on both evaluated nuclear data and the NJOY code.

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Section: Near Threshold Model and Refinementmentioning

confidence: 99%

Improvements on the damage calculations using evaluated nuclear data and NJOY

Chen,

Bernard

2024

EPJ Web of Conf.

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“…Recently, a stochastic estimation method of level density in the configuration-interaction shell model (CISM) framework has been proposed [33] and applied to calculate the NLDs of the fission products 133−137 Xe and 135−138 Ba in Ref. [34]. In the past two decades, microscopic method based on the Hartree-Fock-Bogoliubov (HFB) plus combinatorial model [11] has been well developed.…”

Section: Introductionmentioning

confidence: 99%

Calculation of microscopic nuclear level densities based on covariant density functional theory

Geng,

Du,

et al. 2023

NUCL SCI TECH

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A microscopic method for calculating nuclear level density (NLD) based on the covariant density functional theory (CDFT) is developed. The particle-hole state density is calculated by combinatorial method using the single-particle levels schemes obtained from the CDFT, and then the level densities are obtained by taking into account collective effects such as vibration and rotation. Our results are compared with those from other NLD models, including phenomenological, microstatistical and non-relativistic HFB combinatorial models. The comparison suggests that the general trends among these models are basically the same, except for some deviations from different NLD models. In addition, the NLDs of the CDFT combinatorial method with normalization are compared with experimental data, including the observed cumulative number of levels at low excitation energy and the measured NLDs. Compared with the existing experimental data, the CDFT combinatorial method can give reasonable results.

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