Evaluation of stable tungsten isotopes in the resolved resonance region

Emiliani, F.; Guber, K. H.; Kopecky, S.; Lampoudis, C.; Massimi, C.; Schillebeeckx, P.; Volev, K.

doi:10.1051/epjconf/20134202002

Cited by 2 publications

(4 citation statements)

References 7 publications

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“…In JEFF-3.2, which was released in 2014, the neutron transport sublibraries for [242][243][244][245][246]248 Cm, 241 Am, 232,233 U and 231 Pa, including the DN data, were replaced by results of other evaluations. Since no new experimental data was produced or became available after the work of Subgroup 6 there was in principle no justification to replace the DN data.…”

Section: 3])mentioning

confidence: 99%

“…All the considerations mentioned above motivated the restoration of the 8-group data for 227,229,232 Th, 231 Pa, 232−235 U, 237 Np, 238,241 Pu, 241,243 Am, [242][243][244][245][246]248 Cm and 249 Cf. For nuclides without DN data in JEFF-3.1.1, i.e.…”

Section: 3])mentioning

confidence: 99%

“…Neutron resonance parameters for the 182,183,184,186 W isotopes were obtained in the energy region below 2 keV from a resonance shape analysis with REFIT of transmission and capture data that were measured at GELINA [63]. Details about the measurements and the analysis are given in Reference [246]. Starting parameters for the least squares adjustment were obtained by combining the results of transmission and capture measurements reported by Camarda et al [247] and Macklin et al [248], respectively.…”

Section: Tungstenmentioning

confidence: 99%

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The joint evaluated fission and fusion nuclear data library, JEFF-3.3

et al. 2020

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The joint evaluated fission and fusion nuclear data library 3.3 is described. New evaluations for neutroninduced interactions with the major actinides 235 U, 238 U and 239 Pu, on 241 Am and 23 Na, 59 Ni, Cr, Cu, Zr, Cd, Hf, W, Au, Pb and Bi are presented. It includes new fission yields, prompt fission neutron spectra and average number of neutrons per fission. In addition, new data for radioactive decay, thermal neutron scattering, gamma-ray emission, neutron activation, delayed neutrons and displacement damage are presented. JEFF-3.3 was complemented by files from the TENDL project. The libraries for photon, proton, deuteron, triton, helion and alpha-particle induced reactions are from TENDL-2017. The demands for uncertainty quantification in modeling led to many new covariance data for the evaluations. A comparison between results from model calculations using the JEFF-3.3 library and those from benchmark experiments for criticality, delayed neutron yields, shielding and decay heat, reveals that JEFF-3.3 performes very well for a wide range of nuclear technology applications, in particular nuclear energy.

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Section: 3])mentioning

confidence: 99%

Section: 3])mentioning

confidence: 99%

Section: Tungstenmentioning

confidence: 99%

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The joint evaluated fission and fusion nuclear data library, JEFF-3.3

et al. 2020

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“…The JEFF3.2T evaluation [28] was used as a start file. Figure 4 compares for the homogeneous metal disc the experimental and calculated transmission spectra.…”

Section: Transmission Spectrummentioning

confidence: 99%

Measurement of the direct particle transport through stochastic media using neutron resonance transmission analysis

et al. 2014

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Abstract.A measurement of the uncollided neutron flux passing through a sample containing a stochastic mixture of tungsten and sulfur grains has been performed using neutron resonance transmission analysis in the 3-200 eV energy region. The impact of the heterogeneous characteristic of the sample is shown, based on a comparison of the measurement with a calculated transmission spectrum of a homogeneous sample, which was verified by a measurement with a homogeneous metallic disc. By using a single strong resonance of tungsten, the particle self-shielding factor between 0.2-0.9 was directly measured. The experimental data have been compared with model calculations using the Markovian Levermore-Pomraning model. The measured transmission has been used to determine the effective characteristic chord length and volume fraction of the tungsten grains within the sample.

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Evaluation of stable tungsten isotopes in the resolved resonance region

Cited by 2 publications

References 7 publications

The joint evaluated fission and fusion nuclear data library, JEFF-3.3

The joint evaluated fission and fusion nuclear data library, JEFF-3.3

Measurement of the direct particle transport through stochastic media using neutron resonance transmission analysis

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