skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Determining the average prompt-fission-neutron multiplicity for Pu 239 ( n , f ) via a Pu 240 ( α , α ' f ) surrogate reaction

Abstract

The average prompt-fission-neutron multiplicity ν ¯ is of significance in the areas of nuclear theory, nuclear nonproliferation, and nuclear energy. In this work, the surrogate-reaction method has been used for the first time to indirectly determine ν ¯ for Pu 239 ( n , f ) via Pu 240 ( α , α ' f ) reactions. A Pu 240 target was bombarded with a beam of 53.9-MeV α particles. Scattered α particles, fission products, and neutrons were measured with the NeutronSTARS detector array. Values of ν ¯ were obtained for a continuous range of equivalent incident neutron energies between 0.25 and 26.25 MeV, and the results agree well with direct neutron measurements.

Authors:
ORCiD logo [1];  [1];  [2];  [1];  [1];  [1];  [1];  [3];  [4];  [4]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States)
  3. Univ. of California, Berkeley, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  4. Texas A & M Univ., College Station, TX (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1604290
Report Number(s):
LLNL-JRNL-773338
Journal ID: ISSN 2469-9985; PRVCAN; 965114
Grant/Contract Number:  
AC52-07NA27344; NA0000979; NA0003180
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 100; Journal Issue: 6; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; fission; H & He induced nuclear reactions; nuclear reactions; nucleon induced nuclear reactions

Citation Formats

Wang, B. S., Harke, J. T., Akindele, O. A., Casperson, R. J., Hughes, R. O., Koglin, J. D., Kolos, K., Norman, E. B., Ota, S., and Saastamoinen, A. Determining the average prompt-fission-neutron multiplicity for Pu239(n,f) via a Pu240(α,α'f) surrogate reaction. United States: N. p., 2019. Web. doi:10.1103/PhysRevC.100.064609.
Wang, B. S., Harke, J. T., Akindele, O. A., Casperson, R. J., Hughes, R. O., Koglin, J. D., Kolos, K., Norman, E. B., Ota, S., & Saastamoinen, A. Determining the average prompt-fission-neutron multiplicity for Pu239(n,f) via a Pu240(α,α'f) surrogate reaction. United States. doi:https://doi.org/10.1103/PhysRevC.100.064609
Wang, B. S., Harke, J. T., Akindele, O. A., Casperson, R. J., Hughes, R. O., Koglin, J. D., Kolos, K., Norman, E. B., Ota, S., and Saastamoinen, A. Mon . "Determining the average prompt-fission-neutron multiplicity for Pu239(n,f) via a Pu240(α,α'f) surrogate reaction". United States. doi:https://doi.org/10.1103/PhysRevC.100.064609. https://www.osti.gov/servlets/purl/1604290.
@article{osti_1604290,
title = {Determining the average prompt-fission-neutron multiplicity for Pu239(n,f) via a Pu240(α,α'f) surrogate reaction},
author = {Wang, B. S. and Harke, J. T. and Akindele, O. A. and Casperson, R. J. and Hughes, R. O. and Koglin, J. D. and Kolos, K. and Norman, E. B. and Ota, S. and Saastamoinen, A.},
abstractNote = {The average prompt-fission-neutron multiplicity ν¯ is of significance in the areas of nuclear theory, nuclear nonproliferation, and nuclear energy. In this work, the surrogate-reaction method has been used for the first time to indirectly determine ν¯ for Pu239(n,f) via Pu240(α,α'f) reactions. A Pu240 target was bombarded with a beam of 53.9-MeV α particles. Scattered α particles, fission products, and neutrons were measured with the NeutronSTARS detector array. Values of ν¯ were obtained for a continuous range of equivalent incident neutron energies between 0.25 and 26.25 MeV, and the results agree well with direct neutron measurements.},
doi = {10.1103/PhysRevC.100.064609},
journal = {Physical Review C},
number = 6,
volume = 100,
place = {United States},
year = {2019},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Neutron Multiplicity in the Fission of U 238 and U 235 with Neutrons up to 200 MeV
journal, February 2005


Basics of accelerator driven subcritical reactors
journal, May 2001

  • Nifenecker, H.; David, S.; Loiseaux, J. M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 463, Issue 3
  • DOI: 10.1016/S0168-9002(01)00160-7

Prompt Neutron Emission Probabilities Following Spontaneous and Thermal Neutron Fission
journal, September 1985

  • Boldeman, J. W.; Hines, M. G.
  • Nuclear Science and Engineering, Vol. 91, Issue 1
  • DOI: 10.13182/NSE85-A17133

Prompt v in neutron-induced fission of 239Pu and 241Pu
journal, January 1968


Neutron Capture and Nuclear Constitution
journal, February 1936


Deducing the U 237 ( n , f ) cross section using the surrogate ratio method
journal, May 2006


Neutron Multiplicity Counting Moments for Fissile Mass Estimation in Scatter-Based Neutron Detection Systems
journal, August 2017


Prompt neutrons from fission
journal, October 1963


Energy Dependence of Plutonium and Uranium Average Fragment Total Kinetic Energies
journal, April 2014


Determining ( n , f ) cross sections for actinide nuclei indirectly: Examination of the surrogate ratio method
journal, November 2006


Cyclotron Institute at Texas A&M University: A facility overview
conference, January 2019

  • Tabacaru, G.; Clark, H.; Arje, J.
  • EXOTIC NUCLEI AND NUCLEAR/PARTICLE ASTROPHYSICS (VII). PHYSICS WITH SMALL ACCELERATORS: Proceedings of the Carpathian Summer School of Physics 2018 (CSSP18), AIP Conference Proceedings
  • DOI: 10.1063/1.5091637

STARS/LiBerACE: Segmented silicon and high-purity germanium detector arrays for low-energy nuclear reaction and structure studies
journal, September 2010

  • Lesher, S. R.; Phair, L.; Bernstein, L. A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 621, Issue 1-3
  • DOI: 10.1016/j.nima.2010.04.017

A New Particle Identifier Technique for Z = 1 and Z = 2 Particles in the Energy Range > 10 MeV
journal, June 1964

  • Goulding, Fred S.; Landis, Donald A.; Cerny, Joseph
  • IEEE Transactions on Nuclear Science, Vol. 11, Issue 3
  • DOI: 10.1109/TNS.1964.4323452

Neutron-induced fission: properties of prompt neutron and γ rays as a function of incident energy
journal, January 2016


NeutronSTARS: A segmented neutron and charged particle detector for low-energy reaction studies
journal, November 2017

  • Akindele, O. A.; Casperson, R. J.; Wang, B. S.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 872
  • DOI: 10.1016/j.nima.2017.07.069

Surrogate ratio method in the actinide region using the ( α , α ' f ) reaction
journal, April 2009


Compound-nuclear reaction cross sections from surrogate measurements
journal, March 2012

  • Escher, Jutta E.; Burke, Jason T.; Dietrich, Frank S.
  • Reviews of Modern Physics, Vol. 84, Issue 1
  • DOI: 10.1103/RevModPhys.84.353

Estimation of ( n , f ) cross sections by measuring reaction probability ratios
journal, May 2005


Expansion of the surrogate method to measure the prompt fission neutron multiplicity for Pu 241
journal, May 2019


Measurement of prompt for the neutron-induced fission of Th232, U233, U234, U238 and Pu239
journal, April 1965


Surrogate measurement of the Pu 238 ( n , f ) cross section
journal, May 2011


Prompt fission neutron spectra of U 238 and Th 232 above emissive fission threshold
journal, March 2004


Characterization and extrapolation of a conceptual experimental accelerator driven system
journal, January 2003


The Inelastic Scattering of Neutrons
journal, July 1952


Measurement of the Fission Thresholds of Pu 239 , U 233 , U 235 , and U 238 Using the ( d ,   p ) Reaction
journal, September 1959


Energy dependence of for neutron-induced fission of 235U, 238U and 239Pu from 1·3 to 15 MeV
journal, May 1969


A new particle identifier technique for Z = 1 and Z = 2 particles in the energy range > 10 MeV
journal, December 1964