Fragment Anisotropies in Neutron-, Deuteron-, and Alpha-Particle-Induced Fission

Leachman, R.B.; Blumberg, L.

doi:10.1103/physrev.137.b814

Cited by 59 publications

(21 citation statements)

References 41 publications

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“…-For all actinide the anisotropy increases with the opening of each fission chance (n,f), (n,nf), (n,2nf), etc. -In the neutron energy range below 20 MeV our data agree well with the numerous previously obtained results [9][10][11][12][13][14][15][16][17][18][19][20]. This confirms the reliability of the used method of measurement of angular distributions of fission fragments.…”

Section: Resultssupporting

confidence: 82%

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Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

et al. 2017

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Abstract. Angular distributions of fission fragments from the neutron-induced fission of 232 Th, 233 U, 235 U, 238 U and 209 Bi have been measured in the energy range 1-200 MeV at the neutron TOF spectrometer GNEIS based on the spallation neutron source at 1 GeV proton synchrocyclotron of the PNPI (Gatchina, Russia). The multiwire proportional counters have been used as a position sensitive fission fragment detector. A description of the experimental equipment and measurement procedure is given. The anisotropy of fission fragments deduced from the data on measured angular distributions is presented in comparison with experimental data of other authors, first of all, the recent data from WNR at LANSCE (Los Alamos, USA) and n TOF(CERN).

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Section: Resultssupporting

confidence: 82%

“…At the same time, the data for the 238 U nucleus [13][14][15] are the Figure 6. Anisotropy of fission fragment of investigated actinide nuclei compared with the experimental data of other authors [9][10][11][12][13][14][15][16][17][18][19][20]. The solid curve on each graph is only the eye guide to the experimental data.…”

Section: Resultsmentioning

confidence: 99%

Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

et al. 2017

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“…The average error of our measurements for 239 Pu and 237 Np is 1-3%, and for nat Pb -3-14% in the entire investigated neutron energy range. On the same figures for 239 Pu and 237 Np, the results of previous measurements of this anisotropy ( 239 Pu: [10-13, 15-18] and 237 Np: [12,13,15,16,[19][20][21]) included in the EXFOR database are shown. Despite the fact that there are some differences between our data and the results of these earlier works, it can be said that there is generally a satisfactory agreement, especially if we take into account the existing discrepancy between the archival data sets.…”

Section: Resultsmentioning

confidence: 97%

“…Anisotropy of FFs for 239 Pu (top) compared with experimental data from[10][11][12][13][15][16][17][18] and for nat Pb (bottom). Error bars are the statistical errors.…”

mentioning

confidence: 99%

Angular distributions and anisotropy of fission fragments from neutron-induced fission of²³⁹Pu,²³⁷Np, and^natPb in energy range 1–200 MeV

et al. 2020

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This work summarizes some results of a series of experiments aimed at the investigation of energy dependence of anisotropy of fission fragments (FFs) in (n, f) reactions for neutron energies from low to intermediate. Angular distributions of FFs from the neutron-induced fission of 239Pu, 237Np, and natPb have been measured in the energy range 1–200 MeV at the neutron TOF spectrometer GNEIS based on the spallation neutron source at 1 GeV proton synchrocyclotron of the Petersburg Nuclear Physics Institute (Gatchina, Russia). The anisotropies of FFs deduced from the measured angular distributions are presented. In the neutron energy range above 20 MeV the results have been obtained for the first time in our works. The experimental data for FF anisotropy in 237Np(n, f) are compared with calculations based on "adapted" TALYS software.

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“…Protons or deuterons were accelerated in the FNG to produce neutrons by the 7 Li(p,n) 7 Be and D(d,n) 3 He reactions. Neutrons with energies < 5 MeV were produced using targets formed by evaporating thin layers of lithium metal onto tantalum target cups.…”

Section: Experimental Apparatusmentioning

confidence: 99%

Fission-fragment angular distributions and total kinetic energies for /sup 235/U(n,f) from. 18 to 8. 83 MeV

Meadows¹,

Budtz-Joergensen²

1982

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ANL/NDM-60 Neutron Capture Activation Cross Sections of 9 '*, 96 Zr, 9 8,100ji Of and 110 , llt+ , 116 Cd at Thermal and 30 keV Energy, John M. Wyrick and Wolfgang P. Poenitz, (to be published). ANL/NDM-61 Fast-neutron Total and Scattering Cross Sections of 58 N1 by Carl Budtz-J^rgensen, Peter T. Guenther, Alan B. Smith and James F. Whalen, September 1981. ANL/NDM-62 Covarlance Matrices and Applications to the Field of Nuclear Data, by Donald L. Smith, Nobember 1981. ANL/NDM-63 On the Neutron Inelastic-scattering Cross Sections of 232 Th, 233 U, 235 U, 238 U, 239 Pu, and 2I * 0 Pu, Alan B. Smith and Peter T. Guenther, (to be published).

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Fragment Anisotropies in Neutron-, Deuteron-, and Alpha-Particle-Induced Fission

Cited by 59 publications

References 41 publications

Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

Angular distributions and anisotropy of fission fragments from neutron-induced fission of²³⁹Pu,²³⁷Np, and^natPb in energy range 1–200 MeV

Fission-fragment angular distributions and total kinetic energies for /sup 235/U(n,f) from. 18 to 8. 83 MeV

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Fragment Anisotropies in Neutron-, Deuteron-, and Alpha-Particle-Induced Fission

Cited by 59 publications

References 41 publications

Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

Angular distributions and anisotropy of fission fragments from neutron-induced fission of239Pu,237Np, andnatPb in energy range 1–200 MeV

Fission-fragment angular distributions and total kinetic energies for /sup 235/U(n,f) from. 18 to 8. 83 MeV

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Angular distributions and anisotropy of fission fragments from neutron-induced fission of²³⁹Pu,²³⁷Np, and^natPb in energy range 1–200 MeV