Cross section measurements for neutron inelastic scattering and the (n, 2nγ) reaction on Pb206

Negret, A.; Mihailescu, L. C.; Borcea, C.; Dessagne, Ph.; Guber, K. H.; Kerveno, M.; Koning, A. J.; Olacel, A.; Plompen, A. J.  M.; Rouki, C.; Rudolf, G.

doi:10.1103/PhysRevC.91.064618

Title: Cross section measurements for neutron inelastic scattering and the $(n, 2 n γ)$ reaction on ${}^{206}{Pb}$

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Abstract

We measured excitation functions for γ production associated with the neutron inelastic scattering and the (n, 2n) reactions on ²⁰⁶Pb from threshold up to 18 MeV for about 40 transitions. Two independent measurements were performed using different samples and acquisition systems to check consistency of the results. Moreover, the neutron flux was determined with a ²³⁵U fission chamber and a procedure that were validated against a fluence standard. For incident energy higher than the threshold for the first excited level and up to 3.5 MeV, estimates are provided for the total inelastic and level cross sections by combining the present γ production cross sections with the level and decay data of ²⁰⁶Pb reported in the literature. The uncertainty common to all incident energies is 3.0% allowing overall uncertainties from 3.3% to 30% depending on transition and neutron energy. Finally, the present data agree well with earlier work, but significantly expand the experimental database while comparisons with model calculations using the talys reaction code show good agreement over the full energy range.

Authors:

Negret, A. ^[1]; Mihailescu, L. C. ^[2]; Borcea, C. ^[1]; Dessagne, Ph. ^[3]; Guber, K. H. ^[4]; Kerveno, M. ^[3]; Koning, A. J. ^[5]; Olacel, A. ^[6]; Plompen, A. J. M. ^[7]; Rouki, C. ^[7]; Rudolf, G. ^[3]

Horia Hulubei National Inst. of Physics and Nuclear Engineering, Magurele (Romania)
Horia Hulubei National Inst. of Physics and Nuclear Engineering, Magurele (Romania); European Commission, Geel (Belgium)
Univ. of Strasbourg (France); CNRS, Strasbourg (France)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Nuclear Research Group Petten, Magurele (Romania)
Horia Hulubei National Inst. of Physics and Nuclear Engineering, Magurele (Romania); Univ. of Bucharest, Magurele (Romania)
European Commission, Geel (Belgium)

Publication Date:: Tue Jun 30 00:00:00 EDT 2015

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1265878

Grant/Contract Number:: AC05-00OR22725; 516520; FP7-605203

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review. C, Nuclear Physics

Additional Journal Information:: Journal Volume: 91; Journal Issue: 6; Journal ID: ISSN 0556-2813

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Negret, A., Mihailescu, L. C., Borcea, C., Dessagne, Ph., Guber, K. H., Kerveno, M., Koning, A. J., Olacel, A., Plompen, A. J.  M., Rouki, C., and Rudolf, G. Cross section measurements for neutron inelastic scattering and the (n, 2nγ) reaction on Pb206.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevC.91.064618.

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                    Negret, A., Mihailescu, L. C., Borcea, C., Dessagne, Ph., Guber, K. H., Kerveno, M., Koning, A. J., Olacel, A., Plompen, A. J.  M., Rouki, C., & Rudolf, G. Cross section measurements for neutron inelastic scattering and the (n, 2nγ) reaction on Pb206.  United States.  https://doi.org/10.1103/PhysRevC.91.064618

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                    Negret, A., Mihailescu, L. C., Borcea, C., Dessagne, Ph., Guber, K. H., Kerveno, M., Koning, A. J., Olacel, A., Plompen, A. J.  M., Rouki, C., and Rudolf, G. Tue .  
"Cross section measurements for neutron inelastic scattering and the (n, 2nγ) reaction on Pb206".  United States.  https://doi.org/10.1103/PhysRevC.91.064618.  https://www.osti.gov/servlets/purl/1265878.

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@article{osti_1265878,

  title        = {Cross section measurements for neutron inelastic scattering and the (n, 2nγ) reaction on Pb206},

  author       = {Negret, A. and Mihailescu, L. C. and Borcea, C. and Dessagne, Ph. and Guber, K. H. and Kerveno, M. and Koning, A. J. and Olacel, A. and Plompen, A. J.  M. and Rouki, C. and Rudolf, G.},

  abstractNote = {We measured excitation functions for γ production associated with the neutron inelastic scattering and the (n, 2n) reactions on 206Pb from threshold up to 18 MeV for about 40 transitions. Two independent measurements were performed using different samples and acquisition systems to check consistency of the results. Moreover, the neutron flux was determined with a 235U fission chamber and a procedure that were validated against a fluence standard. For incident energy higher than the threshold for the first excited level and up to 3.5 MeV, estimates are provided for the total inelastic and level cross sections by combining the present γ production cross sections with the level and decay data of 206Pb reported in the literature. The uncertainty common to all incident energies is 3.0% allowing overall uncertainties from 3.3% to 30% depending on transition and neutron energy. Finally, the present data agree well with earlier work, but significantly expand the experimental database while comparisons with model calculations using the talys reaction code show good agreement over the full energy range.},

  doi          = {10.1103/PhysRevC.91.064618},

  journal      = {Physical Review. C, Nuclear Physics},

  number       = 6,

  volume       = 91,

  place        = {United States},

  year         = {Tue Jun 30 00:00:00 EDT 2015},

  month        = {Tue Jun 30 00:00:00 EDT 2015}

}

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Title: Cross section measurements for neutron inelastic scattering and the (n, 2 n γ ) reaction on Pb 206

Abstract

Citation Formats

Title: Cross section measurements for neutron inelastic scattering and the $(n, 2 n γ)$ reaction on ${}^{206}{Pb}$