The thermal neutron cross-sections and resonance integrals of 50Cr, 109Ag, 123Sb, 133Cs, 191Ir and 202Hg

Sims, G.H.E.; Juhnke, D.G.

doi:10.1016/0022-1902(68)80459-2

Cited by 23 publications

(3 citation statements)

References 12 publications

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“…[5]. [25] 15.1 ± 0.8 (1947) Seren [41] 11.0 ± 4.4 (1952) Pomerance [42] 16.3 ± 1.3 (1960) Lyon [43] 16.6 ± 1.7 (1968) Sims [44] 15.9 ± 0.1 (1975) Gleason [45] 15.8 ± 0.2 (1978) Heft [46] 16.1 ± 0.1 (1978) Koester [47] 2.41 ± 0.06 (1984) Simonits [48] 15.2 ± 0.2 (1988) De Corte [49] 14.9 ± 0.36 (1997) Venturini [50] 14.2 ± 0.5 (2014) Arbocco [51] 14.41 ± 0.13 7.2 ± 0.2 k0 (2019) [25] 8 ± 2.5…”

Section: Resultsmentioning

confidence: 99%

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Newly Evaluated Neutron Reaction Data on Chromium Isotopes

Nobre,

Pigni,

Brown

et al. 2021

Preprint

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Neutron reaction data for the set of major chromium isotopes were reevaluated from the thermal energy range up to 20 MeV. In the low energy region, updates to the thermal values together with an improved R-matrix analysis of the resonance parameters characterizing the cluster of large s-wave resonances for 50,53 Cr isotopes were performed. In the intermediate and high energy range up to 20 MeV, the evaluation methodology used statistical nuclear reaction models implemented in the EMPIRE code within the Hauser-Feshbach framework to evaluate the reaction cross sections and angular distributions. Exceptionally, experimental data were used to evaluate relevant cross sections above the resonance region up to 5 MeV in the major 52 Cr isotope. Evaluations were benchmarked with Monte Carlo simulations of a small suite of critical assemblies highly sensitive to Chromium data, and with the Oktavian shielding benchmark to judge deep penetration performance with a 14-MeV D-T neutron source. A significant improvement in performance is demonstrated compared to existing evaluations.

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Section: Resultsmentioning

confidence: 99%

“…(1968) Sims [44] 10.4 ± 0.4 (1971) De Corte [52] 8.3 (1972) Van Der Linden [53] 7.8 ± 0.4 (1975) Gleason [45] 9.0 ± 0.5 (1976) Sage [54] 12.5 ± 3.24 (1978) Heft [46] 10.5 ± 0.4…”

Section: Resultsmentioning

confidence: 99%

Newly Evaluated Neutron Reaction Data on Chromium Isotopes

Nobre,

Pigni,

Brown

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…It is recommended to include the re-evaluated 50 Cr(n,) 51 Cr excitation function and evaluated the 56 Fe(n,x) 54 Mn, 57 Fe(n,x) 56 Mn and 68 Zn(n,x) 67 Cu reaction excitation functions into the new version of IRDFF library. Measurements of integral cross sections of the 56 Fe(n,x) 54 Mn, 57 Fe(n,x) 56 Mn and 68 Zn(n,x) 67 Cu reactions for the 35 U thermal fission and 252 Cf spontaneous fission neutron spectra will also be useful for testing the evaluated excitation functions.…”

Section: Discussionmentioning

confidence: 99%