Fluctuations in the 235U(n,f) cross section

Bertsch, G F.; Brown, David A.; Davis, E. D.

doi:10.1103/PhysRevC.98.014611

Title: Fluctuations in the 235U(n,f) cross section

Journal Article · 18 July 2018 · Physical Review C

DOI: https://doi.org/10.1103/PhysRevC.98.014611 · OSTI ID:1431485

Bertsch, G F. ^[1]; Brown, David A. ^[2]; Davis, E. D. ^[3]

Univ. of Washington, Seattle, WA (United States). Dept. of Physics and Inst. of Nuclear Theory
Brookhaven National Lab. (BNL), Upton, NY (United States). National Nuclear Data Center (NNDC)
North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics; Triangle Univ. Nuclear Lab., Durham, NC (United States)

We examine the autocorrelation function of the ²³⁵U(n,f) reaction with a view to quantify the presence of intermediate structure in the cross section. Fluctuations due to compound nucleus resonances on the eV energy scale are clearly visible up to ~ 100 keV neutron energies. Lastly, structure on the one-keV energy scale is not present as a systematic feature of the correlation function, although it is present in the data covering the region around 20 keV.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC0012704; FG02-97ER41042; AC02- 98CH10886

OSTI ID:: 1431485

Alternate ID(s):: OSTI ID: 1460753

Report Number(s):: BNL-203449-2018-JAAM; TRN: US1802317

Journal Information:: Physical Review C, Vol. 98, Issue 1; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 4 works

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References (31)

Evaluation of the Neutron Data Standards Carlson, A. D.; Pronyaev, V. G.; Capote, R. Nuclear Data Sheets, Vol. 148 https://doi.org/10.1016/j.nds.2018.02.002	journal	February 2018
ENDF/B-VIII.0: The 8 th Major Release of the Nuclear Reaction Data Library with CIELO-project Cross Sections, New Standards and Thermal Scattering Data Brown, D. A.; Chadwick, M. B.; Capote, R. Nuclear Data Sheets, Vol. 148 https://doi.org/10.1016/j.nds.2018.02.001	journal	February 2018
Measurement of the Fission Cross Section of Uranium-235 for Incident Neutrons with Energies Between 2 and 100 keV Perez, R. B.; Saussure, G. de; Silver, E. G. Nuclear Science and Engineering, Vol. 55, Issue 2 https://doi.org/10.13182/NSE74-A28207	journal	October 1974
IAEA CIELO Evaluation of Neutron-induced Reactions on 235 U and 238 U Targets Capote, R.; Trkov, A.; Sin, M. Nuclear Data Sheets, Vol. 148 https://doi.org/10.1016/j.nds.2018.02.005	journal	February 2018
Towards a More Complete and Accurate Experimental Nuclear Reaction Data Library (EXFOR): International Collaboration Between Nuclear Reaction Data Centres (NRDC) Otuka, N.; Dupont, E.; Semkova, V. Nuclear Data Sheets, Vol. 120 https://doi.org/10.1016/j.nds.2014.07.065	journal	June 2014
RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations Capote, R.; Herman, M.; Obložinský, P. Nuclear Data Sheets, Vol. 110, Issue 12 https://doi.org/10.1016/j.nds.2009.10.004	journal	December 2009
Cross-section fluctuations in chaotic scattering systems Ericson, Torleif E. O.; Dietz, Barbara; Richter, Achim Physical Review E, Vol. 94, Issue 4 https://doi.org/10.1103/PhysRevE.94.042207	journal	October 2016
A statistical analysis of the neutron-induced fission and total cross-section of235U up to 36 keV Lanzanò, G.; Migneco, E. Il Nuovo Cimento A, Vol. 41, Issue 2 https://doi.org/10.1007/BF02730106	journal	September 1977
High Resolution Measurements of Neutron-Induced Fission Cross Sections for ²³³ U, ²³⁵ U, ²³⁹ Pu and ²⁴¹ Pu Below 30 keV Blons, J. Nuclear Science and Engineering, Vol. 51, Issue 2 https://doi.org/10.13182/NSE73-A26589	journal	June 1973
Analysis of neutron-capture data in the resonance region Fröhner, F. H.; Haddad, E. Nuclear Physics, Vol. 71, Issue 1 https://doi.org/10.1016/0029-5582(65)90042-8	journal	September 1965
Finite-Sample-Size Effects in Nuclear Cross-Section Fluctuations Gibbs, W. R. Physical Review, Vol. 139, Issue 5B https://doi.org/10.1103/PhysRev.139.B1185	journal	September 1965
Coherence width of cross-section fluctuations and maxima in the excitation function Bizzeti, P. G.; Maurenzig, P. R. Il Nuovo Cimento B Series 10, Vol. 47, Issue 1 https://doi.org/10.1007/BF02712305	journal	January 1967
U 233 Fission Cross Section Measured Using a Nuclear Explosion in Space Albert, Richard D. Physical Review, Vol. 142, Issue 3 https://doi.org/10.1103/PhysRev.142.778	journal	February 1966
Spin determination of resonance structure in ( U 235 + n ) below 25 keV Moore, M. S.; Moses, J. D.; Keyworth, G. A. Physical Review C, Vol. 18, Issue 3 https://doi.org/10.1103/PhysRevC.18.1328	journal	September 1978
R-Matrix Analysis of ²³⁵ U Neutron Transmission and Cross-Section Measurements in the 0- to 2.25-keV Energy Range Leal, L. C.; Derrien, H.; Larson, N. M. Nuclear Science and Engineering, Vol. 131, Issue 2 https://doi.org/10.13182/NSE99-A2031	journal	February 1999
Cross-section fluctuations in the Al27(p, α)Mg24 reaction Allardyce, B. W.; Graham, W. R.; Hall, I. Nuclear Physics, Vol. 52 https://doi.org/10.1016/0029-5582(64)90688-1	journal	March 1964
Measurement of the Neutron Capture and Fission Cross Sections of ²³⁹ Pu and ²³⁵ U, 0.02 eV to 200 keV, the Neutron Capture Cross Sections of ¹⁹⁷ Au, 10 to 50 keV, and Neutron Fission Cross Sections of ²³³ U, 5 to 20 Gwin, R.; Silver, E. G.; Ingle, R. W. Nuclear Science and Engineering, Vol. 59, Issue 2 https://doi.org/10.13182/NSE76-A15682	journal	February 1976
Limitation of the Number of Degrees of Freedom in Fluctuation Analysis Gibbs, W. R. Physical Review, Vol. 153, Issue 4 https://doi.org/10.1103/PhysRev.153.1206	journal	January 1967
Subthreshold Fission Cross Section of ²⁴⁰ Pu and the Fission Cross Sections of ²³⁵ U and ²³⁹ Pu Weston, L. W.; Todd, J. H. Nuclear Science and Engineering, Vol. 88, Issue 4 https://doi.org/10.13182/NSE84-A18373	journal	December 1984
Cross-section fluctuations in open microwave billiards and quantum graphs: The counting-of-maxima method revisited Dietz, B.; Richter, A.; Samajdar, R. Physical Review E, Vol. 92, Issue 2 https://doi.org/10.1103/PhysRevE.92.022904	journal	August 2015
The neutron induced fission cross section of 235U in the energy region from 0.008 eV to 30 keV Wagemans, C.; Deruytter, A. J. Annals of Nuclear Energy, Vol. 3, Issue 9-10 https://doi.org/10.1016/0306-4549(76)90028-1	journal	January 1976
Conductance Peaks in Open Quantum Dots Ramos, J. G. G. S.; Bazeia, D.; Hussein, M. S. Physical Review Letters, Vol. 107, Issue 17 https://doi.org/10.1103/PhysRevLett.107.176807	journal	October 2011
Widths of fluctuations in nuclear cross sections Brink, D. M.; Stephen, R. O. Physics Letters, Vol. 5, Issue 1 https://doi.org/10.1016/S0375-9601(63)80037-7	journal	June 1963
High Resolution Fission Cross Section of Uranium-235 from 20 eV to 100 keV Lemley, J. R.; Keyworth, G. A.; Diven, B. C. Nuclear Science and Engineering, Vol. 43, Issue 3 https://doi.org/10.13182/NSE71-A19974	journal	March 1971
A theory of fluctuations in nuclear cross sections Ericson, Torleif Annals of Physics, Vol. 23, Issue 3 https://doi.org/10.1016/0003-4916(63)90261-6	journal	September 1963
Statistical Theory of the Energy Levels of Complex Systems. III Dyson, Freeman J. Journal of Mathematical Physics, Vol. 3, Issue 1 https://doi.org/10.1063/1.1703775	journal	January 1962
Fission cross-section measurement on 235U Cao, M. G.; Migneco, E.; Theobald, J. P. Journal of Nuclear Energy, Vol. 22, Issue 4 https://doi.org/10.1016/0022-3107(68)90009-9	journal	April 1968
Measurements of the Neutron Fission Cross Sections of ²³⁵ U ( E _n = 0.01 eV to 30 keV) and ²³⁹ Pu ( E _n = 0.01 to 60 eV) Gwin, R.; Spencer, R. R.; Ingle, R. W. Nuclear Science and Engineering, Vol. 88, Issue 1 https://doi.org/10.13182/NSE84-A17138	journal	September 1984
Structure in the fission cross-section of 235U Patrick, B. H.; Sowerby, M. G.; Schomberg, M. G. Journal of Nuclear Energy, Vol. 24, Issue 5 https://doi.org/10.1016/0022-3107(70)90023-7	journal	September 1970
Finite energy range and modulation effects in the analysis of cross-section fluctuation data Hall, I. Physics Letters, Vol. 10, Issue 2 https://doi.org/10.1016/0031-9163(64)90168-4	journal	June 1964
Fluctuations of Nuclear Cross Sections in the "Continuum" Region Ericson, Torleif Physical Review Letters, Vol. 5, Issue 9 https://doi.org/10.1103/PhysRevLett.5.430	journal	November 1960

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