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Title: Energy dependence of the prompt γ -ray emission from the ( d , p ) -induced fission of U * 234 and Pu * 240

Abstract

Prompt-fission γ rays are responsible for approximately 5% of the total energy released in fission, and therefore important to understand when modeling nuclear reactors. In this work we present prompt γ-ray emission characteristics in fission as a function of the nuclear excitation energy of the fissioning system. Emitted γ-ray spectra were measured, and γ-ray multiplicities and average and total γ energies per fission were determined for the U(d,pf)233 reaction for excitation energies between 4.8 and 10 MeV, and for the Pu(d,pf)239 reaction between 4.5 and 9 MeV. The spectral characteristics show no significant change as a function of excitation energy above the fission barrier, despite the fact that an extra -5 MeV of energy is potentially available in the excited fragments for γ decay. The measured results are compared with model calculations made for prompt γ-ray emission with the fission model code gef. Further comparison with previously obtained results from thermal neutron induced fission is made to characterize possible differences arising from using the surrogate (d,p) reaction.

Authors:
 [1];  [1];  [2];  [3];  [4];  [1];  [1];  [5];  [6];  [7];  [1];  [8];  [1];  [1];  [1];  [1];  [1];  [1];  [9];  [1] more »;  [1];  [1];  [10];  [1];  [11] « less
  1. Univ. of Oslo, Oslo (Norway)
  2. CNRS/Univ. Paris-Sud, Univ. Paris Saclay, Orsay Cedex (France)
  3. Extreme Light Infrastructure - Nuclear Physics (ELI-NP), Bucharest-Magurele (Romania)
  4. European Commission, Geel (Belgium)
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  6. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  7. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  8. Univ. of Oslo, Oslo (Norway); Helmholtz Institute Mainz, Mainz (Germany); GSI Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany)
  9. Univ. of California, Berkeley, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  10. Grand Accelerateur National d'lons Lourd (France)
  11. iThemba LABS, Somerset West (South Africa)
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1378551
Alternate Identifier(s):
OSTI ID: 1368426; OSTI ID: 1429356
Report Number(s):
LLNL-JRNL-737322
Journal ID: ISSN 2469-9985; PRVCAN
Grant/Contract Number:  
AC52-07NA27344; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 96; 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

Rose, Sunniva J., Zeiser, Fabio, Wilson, J. N., Oberstedt, A., Oberstedt, S., Siem, S., Tveten, G. M., Bernstein, L. A., Bleuel, D. L., Brown, J. A., Campo, L. Crespo, Giacoppo, F., Gorgen, A., Guttormsen, M., Hadynska, K., Hafreager, A., Hagen, T. W., Klintefjord, M., Laplace, T. A., Larsen, A. C., Renstrom, T., Sahin, E., Schmitt, C., Tornyi, T. G., and Wiedeking, M. Energy dependence of the prompt γ-ray emission from the (d,p)-induced fission of U*234 and Pu*240. United States: N. p., 2017. Web. doi:10.1103/PhysRevC.96.014601.
Rose, Sunniva J., Zeiser, Fabio, Wilson, J. N., Oberstedt, A., Oberstedt, S., Siem, S., Tveten, G. M., Bernstein, L. A., Bleuel, D. L., Brown, J. A., Campo, L. Crespo, Giacoppo, F., Gorgen, A., Guttormsen, M., Hadynska, K., Hafreager, A., Hagen, T. W., Klintefjord, M., Laplace, T. A., Larsen, A. C., Renstrom, T., Sahin, E., Schmitt, C., Tornyi, T. G., & Wiedeking, M. Energy dependence of the prompt γ-ray emission from the (d,p)-induced fission of U*234 and Pu*240. United States. https://doi.org/10.1103/PhysRevC.96.014601
Rose, Sunniva J., Zeiser, Fabio, Wilson, J. N., Oberstedt, A., Oberstedt, S., Siem, S., Tveten, G. M., Bernstein, L. A., Bleuel, D. L., Brown, J. A., Campo, L. Crespo, Giacoppo, F., Gorgen, A., Guttormsen, M., Hadynska, K., Hafreager, A., Hagen, T. W., Klintefjord, M., Laplace, T. A., Larsen, A. C., Renstrom, T., Sahin, E., Schmitt, C., Tornyi, T. G., and Wiedeking, M. Wed . "Energy dependence of the prompt γ-ray emission from the (d,p)-induced fission of U*234 and Pu*240". United States. https://doi.org/10.1103/PhysRevC.96.014601. https://www.osti.gov/servlets/purl/1378551.
@article{osti_1378551,
title = {Energy dependence of the prompt γ-ray emission from the (d,p)-induced fission of U*234 and Pu*240},
author = {Rose, Sunniva J. and Zeiser, Fabio and Wilson, J. N. and Oberstedt, A. and Oberstedt, S. and Siem, S. and Tveten, G. M. and Bernstein, L. A. and Bleuel, D. L. and Brown, J. A. and Campo, L. Crespo and Giacoppo, F. and Gorgen, A. and Guttormsen, M. and Hadynska, K. and Hafreager, A. and Hagen, T. W. and Klintefjord, M. and Laplace, T. A. and Larsen, A. C. and Renstrom, T. and Sahin, E. and Schmitt, C. and Tornyi, T. G. and Wiedeking, M.},
abstractNote = {Prompt-fission γ rays are responsible for approximately 5% of the total energy released in fission, and therefore important to understand when modeling nuclear reactors. In this work we present prompt γ-ray emission characteristics in fission as a function of the nuclear excitation energy of the fissioning system. Emitted γ-ray spectra were measured, and γ-ray multiplicities and average and total γ energies per fission were determined for the U(d,pf)233 reaction for excitation energies between 4.8 and 10 MeV, and for the Pu(d,pf)239 reaction between 4.5 and 9 MeV. The spectral characteristics show no significant change as a function of excitation energy above the fission barrier, despite the fact that an extra -5 MeV of energy is potentially available in the excited fragments for γ decay. The measured results are compared with model calculations made for prompt γ-ray emission with the fission model code gef. Further comparison with previously obtained results from thermal neutron induced fission is made to characterize possible differences arising from using the surrogate (d,p) reaction.},
doi = {10.1103/PhysRevC.96.014601},
journal = {Physical Review C},
number = 1,
volume = 96,
place = {United States},
year = {Wed Jul 05 00:00:00 EDT 2017},
month = {Wed Jul 05 00:00:00 EDT 2017}
}

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Works referenced in this record:

Late-time emission of prompt fission γ rays
journal, December 2016


Systematics of prompt γ -ray emission in fission
journal, March 2013


Prompt γ -ray production in neutron-induced fission of 239 Pu
journal, April 2013


Properties of prompt-fission γ rays
journal, August 2014


The Mechanism of Nuclear Fission
journal, September 1939


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


�ber den Nachweis und das Verhalten der bei der Bestrahlung des Urans mittels Neutronen entstehenden Erdalkalimetalle
journal, January 1939

  • Hahn, O.; Strassmann, F.
  • Die Naturwissenschaften, Vol. 27, Issue 1
  • DOI: 10.1007/BF01488241

The prompt response of bismuth germanate and NaI(Tl) scintillation detectors to fast neutrons
journal, August 1983

  • Häusser, O.; Lone, M. A.; Alexander, T. K.
  • Nuclear Instruments and Methods in Physics Research, Vol. 213, Issue 2-3
  • DOI: 10.1016/0167-5087(83)90423-4

Spectrum of Photons Emitted in Coincidence with Fission of U 235 by Thermal Neutrons
journal, January 1971


Improved values for the characteristics of prompt-fission γ -ray spectra from the reaction 235 U( n th , f )
journal, May 2013


Electrodeposition of U and Pu on thin C and Ti substrates
journal, November 2011

  • Henderson, R. A.; Gostic, J. M.; Burke, J. T.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 655, Issue 1
  • DOI: 10.1016/j.nima.2011.06.023

Intermediate structure in the 239Pu(d, pf) reaction
journal, January 1976


Study of the surrogate-reaction method applied to neutron-induced capture cross sections
journal, June 2012


Prompt γ-rays emitted in the thermal-neutron induced fission of 233U and 239Pu
journal, October 1973


Investigation of the U 238 ( d , p ) surrogate reaction via the simultaneous measurement of γ -decay and fission probabilities
journal, August 2016


ENDF/B-VII.1 Nuclear Data for Science and Technology: Cross Sections, Covariances, Fission Product Yields and Decay Data
journal, December 2011


Nuclear Data Sheets for A = 234
journal, March 2007


Statistical γ -decay properties of Ni 64 and deduced ( n , γ ) cross section of the s -process branch-point nucleus Ni 63
journal, October 2016


Disintegration of Uranium by Neutrons: a New Type of Nuclear Reaction
journal, February 1939

  • Meitner, Lise; Frisch, O. R.
  • Nature, Vol. 143, Issue 3615
  • DOI: 10.1038/143239a0

Evidence for the stochastic aspect of prompt γ emission in spontaneous fission
journal, February 2012


The SiRi particle-telescope system
journal, August 2011

  • Guttormsen, M.; Bürger, A.; Hansen, T. E.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 648, Issue 1
  • DOI: 10.1016/j.nima.2011.05.055

Excited superdeformed Kπ=0+ rotational bands in β-vibrational fission resonances of 240Pu
journal, April 2001


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

Prompt-fission γ -ray spectral characteristics from Pu 239 ( n th , f )
journal, June 2017


Scissors resonance in the quasicontinuum of Th, Pa, and U isotopes
journal, January 2014


Angular momentum transfer in 12C-, 20Ne- and 40Ar-induced fission
journal, October 1984


Prompt Gamma Rays from U 235 ( n , f ) , Pu 239 ( n , f ) , and Spontaneous Fission of Cf 252
journal, March 1973


A new fission-fragment detector to complement the CACTUS-SiRi setup at the Oslo Cyclotron Laboratory
journal, February 2014

  • Tornyi, T. G.; Görgen, A.; Guttormsen, M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 738
  • DOI: 10.1016/j.nima.2013.12.005

The statistical model and nuclear level densities
journal, October 1960


Statistical Gamma-Decay at Low Angular Momentum
journal, January 1990


Prompt Gamma Rays Emitted in the Thermal-Neutron-Induced Fission of U 235
journal, September 1972

  • Pleasonton, Frances; Ferguson, Robert L.; Schmitt, H. W.
  • Physical Review C, Vol. 6, Issue 3
  • DOI: 10.1103/PhysRevC.6.1023

Comparative measurement of prompt fission γ -ray emission from fast-neutron-induced fission of U 235 and U 238
journal, September 2015


Constant-temperature level densities in the quasicontinuum of Th and U isotopes
journal, August 2013


General Description of Fission Observables: GEF Model Code
journal, January 2016


The Inelastic Scattering of Neutrons
journal, July 1952


Systematics of nuclear level density parameters
journal, September 2005

  • Bucurescu, Dorel; Egidy, Till von
  • Journal of Physics G: Nuclear and Particle Physics, Vol. 31, Issue 10
  • DOI: 10.1088/0954-3899/31/10/052

The unfolding of continuum γ-ray spectra
journal, June 1996

  • Guttormsen, M.; Tveter, T. S.; Bergholt, L.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 374, Issue 3
  • DOI: 10.1016/0168-9002(96)00197-0

Total prompt energy release in the neutron-induced fission of 235U, 238U, and 239Pu
journal, June 2006


New prompt spectral γ -ray data from the reaction 252 Cf(sf) and its implication on present evaluated nuclear data files
journal, February 2013


Neutron Fission Cross Sections for 231 Th, 233 Th, 235 U, 237 U, 239 U, 241 Pu, and 243 Pu from 0.5 to 2.25 MeV Using ( t, pf ) Reactions
journal, August 1970

  • Cramer, J. D.; Britt, H. C.
  • Nuclear Science and Engineering, Vol. 41, Issue 2
  • DOI: 10.13182/NSE70-A20705

Systematics of Nuclear Level Density Parameters
conference, November 2011

  • Bucurescu, D.; Von Egidy, T.
  • Proceedings of the Eleventh International Symposium, Capture Gamma-Ray Spectroscopy and Related Topics
  • DOI: 10.1142/9789812795151_0052

Constant-temperature level densities in the quasi-continuum of Th and U isotopes
text, January 2013


Scissors resonance in the quasi-continuum of Th, Pa and U isotopes
text, January 2013


A new fission-fragment detector to complement the CACTUS-SiRi setup at the Oslo Cyclotron Laboratory
preprint, January 2013


Works referencing / citing this record:

Review on the progress in nuclear fission—experimental methods and theoretical descriptions
journal, September 2018