Correlation studies of fission-fragment neutron multiplicities

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Correlation studies of fission-fragment neutron multiplicities. / Albertsson, M.; Carlsson, B. G.; Dossing, T.; Moller, P.; Randrup, J.; Aberg, S.

In: Physical Review C, Vol. 103, No. 1, 014609, 19.01.2021.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Albertsson, M, Carlsson, BG, Dossing, T, Moller, P, Randrup, J & Aberg, S 2021, 'Correlation studies of fission-fragment neutron multiplicities', Physical Review C, vol. 103, no. 1, 014609. https://doi.org/10.1103/PhysRevC.103.014609

APA

Albertsson, M., Carlsson, B. G., Dossing, T., Moller, P., Randrup, J., & Aberg, S. (2021). Correlation studies of fission-fragment neutron multiplicities. Physical Review C, 103(1), [014609]. https://doi.org/10.1103/PhysRevC.103.014609

Vancouver

Albertsson M, Carlsson BG, Dossing T, Moller P, Randrup J, Aberg S. Correlation studies of fission-fragment neutron multiplicities. Physical Review C. 2021 Jan 19;103(1). 014609. https://doi.org/10.1103/PhysRevC.103.014609

Author

Albertsson, M. ; Carlsson, B. G. ; Dossing, T. ; Moller, P. ; Randrup, J. ; Aberg, S. / Correlation studies of fission-fragment neutron multiplicities. In: Physical Review C. 2021 ; Vol. 103, No. 1.

Bibtex

@article{c03350cfe23648cdae85f5ad80c7be6f,
title = "Correlation studies of fission-fragment neutron multiplicities",
abstract = "We calculate neutron multiplicities from fission fragments with specified mass numbers for events having a specified total fragment kinetic energy. The shape evolution from the initial compound nucleus to the scission configurations is obtained with the METROPOLIS walk method on the five-dimensional potential-energy landscape, calculated with the macroscopic-microscopic method for the three-quadratic-surface shape family. Shape-dependent microscopic level densities are used to guide the random walk, to partition the intrinsic excitation energy between the two proto-fragments at scission, and to determine the number of neutrons evaporated from the fragments. The contribution to the total excitation energy of the resulting fragments from statistical excitation and shape distortion at scission is studied. Good agreement is obtained with available experimental data on neutron multiplicities in correlation with fission fragments from 235 U(n(th), f). With increasing neutron energy a superlong fission mode grows increasingly prominent, which affects the dependence of the observables on the total fragment kinetic energy.",
author = "M. Albertsson and Carlsson, {B. G.} and T. Dossing and P. Moller and J. Randrup and S. Aberg",
year = "2021",
month = jan,
day = "19",
doi = "10.1103/PhysRevC.103.014609",
language = "English",
volume = "103",
journal = "Physical Review C",
issn = "2469-9985",
publisher = "American Physical Society",
number = "1",

}

RIS

TY - JOUR

T1 - Correlation studies of fission-fragment neutron multiplicities

AU - Albertsson, M.

AU - Carlsson, B. G.

AU - Dossing, T.

AU - Moller, P.

AU - Randrup, J.

AU - Aberg, S.

PY - 2021/1/19

Y1 - 2021/1/19

N2 - We calculate neutron multiplicities from fission fragments with specified mass numbers for events having a specified total fragment kinetic energy. The shape evolution from the initial compound nucleus to the scission configurations is obtained with the METROPOLIS walk method on the five-dimensional potential-energy landscape, calculated with the macroscopic-microscopic method for the three-quadratic-surface shape family. Shape-dependent microscopic level densities are used to guide the random walk, to partition the intrinsic excitation energy between the two proto-fragments at scission, and to determine the number of neutrons evaporated from the fragments. The contribution to the total excitation energy of the resulting fragments from statistical excitation and shape distortion at scission is studied. Good agreement is obtained with available experimental data on neutron multiplicities in correlation with fission fragments from 235 U(n(th), f). With increasing neutron energy a superlong fission mode grows increasingly prominent, which affects the dependence of the observables on the total fragment kinetic energy.

AB - We calculate neutron multiplicities from fission fragments with specified mass numbers for events having a specified total fragment kinetic energy. The shape evolution from the initial compound nucleus to the scission configurations is obtained with the METROPOLIS walk method on the five-dimensional potential-energy landscape, calculated with the macroscopic-microscopic method for the three-quadratic-surface shape family. Shape-dependent microscopic level densities are used to guide the random walk, to partition the intrinsic excitation energy between the two proto-fragments at scission, and to determine the number of neutrons evaporated from the fragments. The contribution to the total excitation energy of the resulting fragments from statistical excitation and shape distortion at scission is studied. Good agreement is obtained with available experimental data on neutron multiplicities in correlation with fission fragments from 235 U(n(th), f). With increasing neutron energy a superlong fission mode grows increasingly prominent, which affects the dependence of the observables on the total fragment kinetic energy.

U2 - 10.1103/PhysRevC.103.014609

DO - 10.1103/PhysRevC.103.014609

M3 - Journal article

VL - 103

JO - Physical Review C

JF - Physical Review C

SN - 2469-9985

IS - 1

M1 - 014609

ER -

ID: 256677009