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Journal Articles

Large collectivity in $$^{29}$$Ne at the boundary of the island of inversion

Revel, A.*; Wu, J.*; Iwasaki, Hironori*; Ash, J.*; Bazin, D.*; Brown, B. A.*; Chen, J.*; Elder, R.*; Farris, P.*; Gade, A.*; et al.

Physics Letters B, 838, p.137704_1 - 137704_7, 2023/03

 Times Cited Count:1 Percentile:64.66(Astronomy & Astrophysics)

no abstracts in English

Journal Articles

Systematic measurements and analyses for lead void reactivity worth in a plutonium core and two uranium cores with different enrichments

Fukushima, Masahiro; Goda, J.*; Oizumi, Akito; Bounds, J.*; Cutler, T.*; Grove, T.*; Hayes, D.*; Hutchinson, J.*; McKenzie, G.*; McSpaden, A.*; et al.

Nuclear Science and Engineering, 194(2), p.138 - 153, 2020/02

 Times Cited Count:7 Percentile:61.18(Nuclear Science & Technology)

To validate lead (Pb) nuclear cross sections, a series of integral experiments to measure lead void reactivity worth was conducted systematically in three fast spectra with different fuel compositions on the Comet critical assembly of the National Criticality Experiments Research Center. Previous experiments in a high-enriched uranium (HEU)/Pb and a low-enriched uranium (LEU)/Pb systems had been performed in 2016 and 2017, respectively. A follow-on experiment in a plutonium (Pu)/Pb system has been completed. The Pu/Pb system was constructed using lead plates and weapons grade plutonium plates that had been used in the Zero Power Physics Reactor (ZPPR) of Argonne National Laboratory until the 1990s. Furthermore, the HEU/Pb system was re-examined on the Comet critical assembly installed newly with a device that can guarantee the gap reproducibility with a higher accuracy and precision, and then the experimental data was re evaluated. Using the lead void reactivity worth measured in these three cores with different fuel compositions, the latest nuclear data libraries, JENDL 4.0 and ENDF/B VIII.0, were tested with the Monte Carlo calculation code MCNP version 6.1. As a result, the calculations by ENDF/B-VIII.0 were confirmed to agree with lead void reactivity worth measured in all the cores. It was furthermore found that the calculations by JENDL 4.0 overestimate by more than 20% for the Pu/Pb core while being in good agreements for the HEU/Pb and LEU/Pb cores.

Journal Articles

Prominence of pairing in inclusive ($$p,2p$$) and ($$p,pn$$) cross sections from neutron-rich nuclei

Paul, N.*; Obertelli, A.*; Bertulani, C. A.*; Corsi, A.*; Doornenbal, P.*; Rodriguez-Sanchez, J. L.*; Authelet, G.*; Orlandi, R.; 84 of others*

Physical Review Letters, 122(16), p.162503_1 - 162503_7, 2019/04

 Times Cited Count:6 Percentile:47.61(Physics, Multidisciplinary)

Journal Articles

Probing the Coulomb interaction of PuCoGa$$_5$$ by phonon spectroscopy

Raymond, S.*; Piekarz, P.*; Sanchez, J. P.*; Serrano, J.*; Kirsch, M.*; Detlefs, B.*; Rebizant, J.*; Metoki, Naoto; Kaneko, Koji; Jochym, P. T.*; et al.

Journal of Alloys and Compounds, 444-445, p.104 - 108, 2007/10

 Times Cited Count:2 Percentile:21.42(Chemistry, Physical)

The phonon dispersion curves of the unconventional superconductor PuCoGa$$_5$$ were studied by inelastic X-ray scattering at room temperature. The experimental data agree well with ab initio lattice dynamics calculations. An accurate theoretical description of the phonon spectrum is obtained only when a local Coulomb repulsion $$U{approx}$$3 eV among 5f electrons is taken into account. This implies partial localization of the 5f electrons in this compound. A comparison made with the phonon spectrum of UCoGa$$_5$$ suggests that the latter compound is better described with a fully itinerant f electrons model.

Journal Articles

Progress in the ITER physics basis, 7; Diagnostics

Donn$'e$, A. J. H.*; Costley, A. E.*; Barnsley, R.*; Bindslev, H.*; Boivin, R.*; Conway, G.*; Fisher, R.*; Giannella, R.*; Hartfuss, H.*; von Hellermann, M. G.*; et al.

Nuclear Fusion, 47(6), p.S337 - S384, 2007/06

 Times Cited Count:335 Percentile:78.95(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Probing the coulomb interaction of the unconventional superconductor PuCoGa$$_5$$ by phonon spectroscopy

Raymond, S.*; Piekarz, P.*; Sanchez, J. P.*; Serrano, J.*; Kirsch, M.*; Janousova, B.*; Rebizant, J.*; Metoki, Naoto; Kaneko, Koji; Jochym, P. T.*; et al.

Physical Review Letters, 96(23), p.237003_1 - 237003_4, 2006/06

 Times Cited Count:26 Percentile:74.45(Physics, Multidisciplinary)

The phonon dispersion curves of the superconductor PuCoGa$$_{5}$$ were studied by inelastic X-ray scattering at room temperature. The experimental data agree well with ${it ab initio}$ lattice dynamics calculations. An accurate description of the phonon spectrum is obtained only when a local Coulomb repulsion U$${simeq}$$ 3 eV among 5$$f$$ electrons is taken into account.

Journal Articles

Phonons in UCoGa$$_{5}$$

Metoki, Naoto; Kaneko, Koji; Raymond, S.*; Sanchez, J. P.*; Piekarz, P.*; Parlinski, K.*; Ole$'s$, A. M.*; Ikeda, Shugo; Matsuda, Tatsuma; Haga, Yoshinori; et al.

Physica B; Condensed Matter, 378-380, p.1003 - 1004, 2006/05

 Times Cited Count:12 Percentile:49.64(Physics, Condensed Matter)

no abstracts in English

Oral presentation

Phonon in ATGa$$_{5}$$(A:U, Pu)

Metoki, Naoto; Kaneko, Koji; Ikeda, Shugo; Matsuda, Tatsuma; Haga, Yoshinori; Onuki, Yoshichika; Raymond, S.*; Piekarz, P.*; Sanchez, J. P.*; Serrano, J.*; et al.

no journal, , 

no abstracts in English

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