Neutron Inelastic Scattering Cross Sections for Natural Chromium Determined from the (<i>n,n′γ</i>) Reaction

Karatzas, P.T.; Couchell, G.P.; Barnes, B.K.; Beghian, L. E.; Harihar, P.; Mittler, A.; Pullen, D.J.; Sheldon, Eric; Sullivan, N.B.

doi:10.13182/nse78-a27235

Cited by 19 publications

(5 citation statements)

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“…29 shows the 50 Cr total inelastic cross section, as well as the partial cross sections for the first three excited levels. As mentioned above we fitted to data of Karatzas et al [140], obtaining a good agreement with experimental data, and generally better than ENDF/B-VIII.0.…”

Section: Inelastic Cross Sectionssupporting

confidence: 59%

“…Noteworthy is the fact that, for the first excited level, our evaluation also agrees well with the higherenergy set of Schmidt [147], bringing to consistency inelastic gamma, partial level, and total neutron inelastic cross-section data. 53 Cr(n,inelastic) -For 53 Cr we fitted to total inelastic data of Karatzas et al [140], reaching a good agreement. The current evaluation lowers total inelastic significantly above ∼2 MeV in comparison with ENDF/B-VIII.0, as can be seen in Fig.…”

Section: Inelastic Cross Sectionsmentioning

confidence: 81%

“…Due to their relative abundance, the elemental inelastic cross section is strongly defined, above 1.4341 MeV, by the 52 Cr, hence its careful discussion below. The main constraint for the inelastic channel were the 52 Cr(n,n γ) measurements of Mihailescu et al [139] even though they in some cases differ strongly from previous measurements of Voss et al For the minor isotopes, the most recent inelastic data dates back to the 1978 experiment of Karatzas et al [140].…”

Section: Inelastic Cross Sectionsmentioning

confidence: 96%

“…(color online) Total inelastic cross section for53 Cr (top panel) and for the first excited level, which has excitation energy of 0.5640 MeV. Data taken from Refs [140,148,152,157]…”

mentioning

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: Inelastic Cross Sectionssupporting

confidence: 59%

Section: Inelastic Cross Sectionsmentioning

confidence: 81%

Section: Inelastic Cross Sectionsmentioning

confidence: 96%

“…(color online) Total inelastic cross section for53 Cr (top panel) and for the first excited level, which has excitation energy of 0.5640 MeV. Data taken from Refs [140,148,152,157]…”

mentioning

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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“…The level structure of the stable nucleus 53 Cr has been studied via in elastic nucleon scattering 1-9 as well as charged-particle reactions, 1-6,9-14 and gamma-ray transitions among levels have been observed by in-beam spectroscopy methods 2,8,[13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] and following beta-decay 32,33 of 53 V. Recently, experimental data available through 1983 were compiled and evaluated by Peker 34 as part of the Nu clear Data Project. One might expect, therefore, that the low-lying (excitation energy E x < 3 MeV) level structure of 53 Cr could be considered as well known.…”

Section: Introductionmentioning

confidence: 99%

Gamma-ray decay of levels in /sup 53/Cr

Dickens¹,

Larson²

1987

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A major purpose of the Techni cal Information Center is to provide the broadest dissemination possi ble of-information contained in DOE's Research and Development Reports to business, industry, the academic community, and federal, state and local governments. Although a small portion of this report is not reproducible, it is being made available to expedite the availability of information on the research discussed herein.

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Bibliography

Jaklovsky¹

1981

Preparation of Nuclear Targets

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Neutron Inelastic Scattering Cross Sections for Natural Chromium Determined from the (n,n′γ) Reaction

Cited by 19 publications

References 0 publications

Newly Evaluated Neutron Reaction Data on Chromium Isotopes

Newly Evaluated Neutron Reaction Data on Chromium Isotopes

Gamma-ray decay of levels in /sup 53/Cr

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