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

Abstract

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.

Authors:
 [1];  [2];  [3]
  1. Univ. of Washington, Seattle, WA (United States). Dept. of Physics and Inst. of Nuclear Theory
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). National Nuclear Data Center (NNDC)
  3. North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics; Triangle Univ. Nuclear Lab., Durham, NC (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1431485
Alternate Identifier(s):
OSTI ID: 1460753
Report Number(s):
BNL-203449-2018-JAAM
Journal ID: ISSN 2469-9985; TRN: US1802317
Grant/Contract Number:  
SC0012704; FG02-97ER41042; AC02- 98CH10886
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 98; Journal Issue: 1; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Bertsch, G F., Brown, David A., and Davis, E. D. Fluctuations in the 235U(n,f) cross section. United States: N. p., 2018. Web. doi:10.1103/PhysRevC.98.014611.
Bertsch, G F., Brown, David A., & Davis, E. D. Fluctuations in the 235U(n,f) cross section. United States. doi:10.1103/PhysRevC.98.014611.
Bertsch, G F., Brown, David A., and Davis, E. D. Wed . "Fluctuations in the 235U(n,f) cross section". United States. doi:10.1103/PhysRevC.98.014611. https://www.osti.gov/servlets/purl/1431485.
@article{osti_1431485,
title = {Fluctuations in the 235U(n,f) cross section},
author = {Bertsch, G F. and Brown, David A. and Davis, E. D.},
abstractNote = {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.},
doi = {10.1103/PhysRevC.98.014611},
journal = {Physical Review C},
number = 1,
volume = 98,
place = {United States},
year = {2018},
month = {7}
}

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Works referenced in this record:

Evaluation of the Neutron Data Standards
journal, February 2018


Measurement of the Fission Cross Section of Uranium-235 for Incident Neutrons with Energies Between 2 and 100 keV
journal, October 1974

  • Perez, R. B.; Saussure, G. de; Silver, E. G.
  • Nuclear Science and Engineering, Vol. 55, Issue 2
  • DOI: 10.13182/NSE74-A28207

IAEA CIELO Evaluation of Neutron-induced Reactions on 235 U and 238 U Targets
journal, February 2018


RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations
journal, December 2009


Cross-section fluctuations in chaotic scattering systems
journal, October 2016


A statistical analysis of the neutron-induced fission and total cross-section of235U up to 36 keV
journal, September 1977


Analysis of neutron-capture data in the resonance region
journal, September 1965


Finite-Sample-Size Effects in Nuclear Cross-Section Fluctuations
journal, September 1965


Coherence width of cross-section fluctuations and maxima in the excitation function
journal, January 1967

  • Bizzeti, P. G.; Maurenzig, P. R.
  • Il Nuovo Cimento B Series 10, Vol. 47, Issue 1
  • DOI: 10.1007/BF02712305

U 233 Fission Cross Section Measured Using a Nuclear Explosion in Space
journal, February 1966


Spin determination of resonance structure in ( U 235 + n ) below 25 keV
journal, September 1978


R-Matrix Analysis of 235 U Neutron Transmission and Cross-Section Measurements in the 0- to 2.25-keV Energy Range
journal, February 1999

  • Leal, L. C.; Derrien, H.; Larson, N. M.
  • Nuclear Science and Engineering, Vol. 131, Issue 2
  • DOI: 10.13182/NSE99-A2031

Cross-section fluctuations in the Al27(p, α)Mg24 reaction
journal, March 1964


Limitation of the Number of Degrees of Freedom in Fluctuation Analysis
journal, January 1967


Subthreshold Fission Cross Section of 240 Pu and the Fission Cross Sections of 235 U and 239 Pu
journal, December 1984

  • Weston, L. W.; Todd, J. H.
  • Nuclear Science and Engineering, Vol. 88, Issue 4
  • DOI: 10.13182/NSE84-A18373

Cross-section fluctuations in open microwave billiards and quantum graphs: The counting-of-maxima method revisited
journal, August 2015


The neutron induced fission cross section of 235U in the energy region from 0.008 eV to 30 keV
journal, January 1976


Conductance Peaks in Open Quantum Dots
journal, October 2011


Widths of fluctuations in nuclear cross sections
journal, June 1963


High Resolution Fission Cross Section of Uranium-235 from 20 eV to 100 keV
journal, March 1971

  • Lemley, J. R.; Keyworth, G. A.; Diven, B. C.
  • Nuclear Science and Engineering, Vol. 43, Issue 3
  • DOI: 10.13182/NSE71-A19974

A theory of fluctuations in nuclear cross sections
journal, September 1963


Statistical Theory of the Energy Levels of Complex Systems. III
journal, January 1962

  • Dyson, Freeman J.
  • Journal of Mathematical Physics, Vol. 3, Issue 1
  • DOI: 10.1063/1.1703775

Fission cross-section measurement on 235U
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)
journal, September 1984

  • Gwin, R.; Spencer, R. R.; Ingle, R. W.
  • Nuclear Science and Engineering, Vol. 88, Issue 1
  • DOI: 10.13182/NSE84-A17138

Structure in the fission cross-section of 235U
journal, September 1970


Fluctuations of Nuclear Cross Sections in the "Continuum" Region
journal, November 1960