Final Report for the Workshop for Applied Nuclear Data Activities

Bernstein, L. A.; Romano, Catherine; Brown, David; Casperson, R. J.; Descalle, Marie-Anne; Devlin, M.; Pickett, Chris A; Rearden, Bradley T.; Vermeuelen, Cristiaan

doi:10.2172/1507106

Cited by 13 publications

(11 citation statements)

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“…[20]. This code is an optical model, exciton-preequilibrium and Hauser-Feshbach statistical-decay code that solves the Schrödinger Equation for a defined set of optical model potentials and calculates the differential elastic-scattering, reaction, and total cross section for several incident light projectiles: n, p, d, t, 3 He, and α particles. In this work we have used CoH3 to calculate the production cross section for the 846.8-keV γ ray over a range of incident-neutron energies from 0.87 to 10.00 MeV for the 56 Fe(n, n γ) reaction.…”

Section: γ-Ray Production Cross Sectionmentioning

confidence: 99%

“…As such, a good knowledge of it is required for virtually all branches of applied nuclear science ranging from shielding calculations to the design of advanced nuclear-energy systems to international security and counter proliferation. The need for improved neutron-scattering data was explicitly stated in a number of recent nuclear data workshops, including the white papers from the Nuclear Data Needs and Capabilities for Applications Workshop [1], the Nuclear Data Roadmapping Enhancement Workshop in 2018 [2] and the Workshop for Applied Nuclear Data Activities in 2019 [3]. In addition to its utility for nuclear applications, (n, n γ) data provides unique insight into off-yrast nuclear structure due to the non-selective nature of the reaction (which can include a significant compound component) and the wide range of angular momentum states accessible to fast neutrons.…”

Section: Introductionmentioning

confidence: 99%

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The Baghdad Atlas: A relational database of inelastic neutron-scattering (n,n′γ) data

Hurst

Bernstein

Kawano

et al. 2021

Nuclear Instruments and Methods in Physics Research Section A:

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A relational database has been developed based on the original (n, n γ) work carried out by A. M. Demidov et al., at the Nuclear Research Institute in Baghdad, Iraq ["Atlas of Gamma-Ray Spectra from the Inelastic Scattering of Reactor Fast Neutrons", Nuclear Research Institute, Baghdad, Iraq (Moscow, Atomizdat 1978)] for 105 independent measurements comprising 76 elemental samples of natural composition and 29 isotopically-enriched samples. The information from this Atlas includes: γ-ray energies and relative intensities; nuclide and level data corresponding to the residual nucleus and meta data associated with the target sample that allows for the extraction of the flux-weighted (n, n γ) cross sections for a given transition relative to a defined value. The optimized angular-distribution-corrected fast-neutron flux-weighted partial γ-ray cross section for the production of the 846.8-keV 2 + 1 → 0 + gs γ-ray transition in 56 Fe, determined to be σ γ = 143(29) mb, is used for this purpose. However, different values for the adopted cross section can be readily implemented to accommodate user preference based on revised determinations of this quantity. The Atlas (n, n γ) data has been compiled into a series of CSV-style ASCII data sets and a suite of Python scripts have been developed to build and install the database locally. The database can then be accessed directly through the SQLite engine, or using alternative methods such as the Jupyter Notebook Python-browser interface. Several examples exploiting different interaction methodologies are distributed with the complete software package.

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Section: γ-Ray Production Cross Sectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Baghdad Atlas: A relational database of inelastic neutron-scattering (n,n′γ) data

Hurst

Bernstein

Kawano

et al. 2021

Nuclear Instruments and Methods in Physics Research Section A:

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“…Including the extra datasets can help clarify effects between level density models, the optical model, and pre-equilibrium parameterizations. Such a procedure could be an inspiration and act as a stepping stone to the development of a charged-particle evaluated data database [78].…”

Section: F Future Considerationsmentioning

confidence: 99%

Investigating High-Energy Proton-Induced Reactions on Spherical Nuclei: Implications for the Pre-Equilibrium Exciton Model

Fox,

Voyles,

Morrell

et al. 2020

Preprint

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“…According to a series of recent white papers on nuclear data [1][2][3], improved knowledge on inelastic scattering of fast neutrons i.e. (n,n´γ)-reactions are required for various applications in nuclear science and technology such as chemical analysis with neutron interrogation systems, design of fast neutron reactors and radiation protection.…”

Section: Introductionmentioning

confidence: 99%

Prompt and delayed gamma rays induced by epithermal and fast neutrons with indium

Mauerhofer

Ilic

Stieghorst

et al. 2021

J Radioanal Nucl Chem

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The emission of prompt and delayed gamma rays from (n,γ) and (n,n´γ) reactions induced by irradiation of indium with epithermal and fast neutrons was investigated with the instrument FaNGaS operated at Heinz-Maier-Leibnitz Zentrum (MLZ) in Garching. The average neutron energy of the neutron spectrum was 2.30 MeV. The measurement was done at an angle of 90° between neutron beam and detector. A total of 136 prompt gamma lines from which 42 are related to the capture of epithermal and fast neutrons and 94 to the inelastic scattering of fast neutrons were detected together with the delayed gamma lines of the activation products 113mIn, 114m2In, 115mIn, 116m2In and 116mIn. Intensities and neutron spectrum averaged isotopic partial cross section of the gamma lines are presented. Additionally the neutron spectrum averaged cross sections of the reactions, 113In(n,n´)113mIn, 113In(n,γ)114m2In, 115In(n,n´)15mIn, 115In(n, γ)116m2In and 115In(n, γ)116mIn were determined from the corresponding delayed gamma rays of the formed isotopes as 143 ± 22, 288 ± 13 194 ± 18, 201 ± 10 and 508 ± 24 mb respectively. The various results obtained were found consistent with the literature data. However, our measurement indicate the need to reevaluate the cross section of the 115In(n,γ)116m2In reaction for thermal neutrons.

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Final Report for the Workshop for Applied Nuclear Data Activities

Abstract: Lastly, the organizers want to offer a special word of thanks to our tireless session leaders who worked hard to prepare for, run and write-up the breakout sessions. We deeply appreciate their commitment to their programs and applied nuclear science as a whole.

Cited by 13 publications

References 0 publications

The Baghdad Atlas: A relational database of inelastic neutron-scattering (n,n′γ) data

The Baghdad Atlas: A relational database of inelastic neutron-scattering (n,n′γ) data

Investigating High-Energy Proton-Induced Reactions on Spherical Nuclei: Implications for the Pre-Equilibrium Exciton Model

Prompt and delayed gamma rays induced by epithermal and fast neutrons with indium

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