Nuclear Data Sheets for A=158

Nica, N.

doi:10.1016/j.nds.2017.03.001

Cited by 41 publications

(34 citation statements)

References 327 publications

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“…We now develop the same for 155 Gd. We identified and measured the photo peak intensities of 12 discrete γ rays for 155 Gd(n, γ) above 5 MeV as in table 1, and found them in agreement with the values from ENSDF [9]. The discrete peaks contribute only 2.78±0.02% of the spectrum .…”

Section: Modifying the Annri-gd MC Modelsupporting

confidence: 67%

Analysis of Gd(n,gamma) reaction with 155, 157 and natural Gd targets taken with JPARC-ANNRI and development of Gd(n,gamma) decay model for Gd-doped neutron/neutrino detectors

Ali¹,

Tanaka²,

Sudo³

et al. 2019

Proceedings of the 39th International Conference on High Energy Physics — PoS(ICHEP2018)

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The importance of a good model for the γ-ray energy spectrum from the radiative thermal neutron capture on Gadolinium (Gd) is specially increased in the present era of Gd-enhancedν e -search detectors. Its an essential prerequisite for MC studies to evaluate the neutron tagging efficiency, in order to enhance signal sensitivity in the Gd-loadedν e -search detectors. The γ-ray spectra produced from the thermal neutron capture on enriched gadolinium targets ( 155 Gd, 157 Gd and Natural Gd) in the energy range 0.11 MeV to 8.0 MeV, were measured using the ANNRI Germanium Spectrometer at MLF, J-PARC. Based on the data acquired and a GEANT4 simulation of the ANNRI detector, we reported the energy spectrum of 157 Gd(n, γ) and developed a γ-ray emission model of 157 Gd(n, γ) in our previous publication. We now present the analysed data of 155 Gd(n, γ) and nat Gd(n, γ) reactions, the energy spectra of γ-rays and an improved model for 155 Gd(n, γ), 157 Gd(n, γ) and nat Gd(n, γ) reactions. The consistency of the results from the devised model is checked among all the 14 germanium crystals, at the level of 15% spectral shape deviation at 0.2 MeV binning.

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Section: Modifying the Annri-gd MC Modelsupporting

confidence: 67%

Analysis of Gd(n,gamma) reaction with 155, 157 and natural Gd targets taken with JPARC-ANNRI and development of Gd(n,gamma) decay model for Gd-doped neutron/neutrino detectors

Ali¹,

Tanaka²,

Sudo³

et al. 2019

Proceedings of the 39th International Conference on High Energy Physics — PoS(ICHEP2018)

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“…with the evident notations: The parameters a and b were fixed by fitting the experimental data taken from Ref. [62] for J=even, with the calculated energies from Eq. (2.55).…”

Section: H Numerical Analysismentioning

confidence: 99%

Semiclassical unified description of wobbling motion in even-even and even-odd nuclei

Râduţâ

Poenaru²,

Ixaru

2017

Phys. Rev. C

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A unitary description for wobbling motion in even-even and even-odd nuclei is presented. In both cases compact formulas for wobbling frequencies are derived. The accuracy of the harmonic approximation is studied for the yrast as well as for the excited bands in the even-even case. Important results for the structure of the wave function and its behavior inside the two wells of the potential energy function corresponding to the Bargmann representation are pointed out. Applications to 158 Er and 163 Lu reveal a very good agreement with available data. Indeed, the yrast energy levels in the even-even case and the first four triaxial super-deformed bands, TSD1,TSD2,TSD3 and TSD4, are realistically described. Also, the results agree with the data for the E2 and M1 intra-as well as inter-band transitions. Perspectives for the formalism development and an extensive application to several nuclei from various regions of the nuclides chart are presented. PACS numbers:

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“…The low-lying level structure for the rotational bands of 156 Gd and 158 Gd, adapted from[9,[22][23][24]. The γ ray transition energies are given alongside the competing internal conversion electron energy (in brackets).…”

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confidence: 99%