### Abstract

We have evaluated the cross sections of ^{12}C for neutrons up to 80MeV, paying more attention to the intermediate energy range above 20MeV. For energies below 20MeV, the evaluated data of JENDL-3.2 were adopted with some modifications. In the energy range above 20MeV, total cross section and its covariance matrix were evaluated using a generalized least-squares method with available experimental data. The spherical optical model was used to evaluate reaction and elastic scattering cross sections. Inelastic scattering to the first 2^{+} state was calculated based on the DWBA. The optical potentials used in these calculations were obtained by means of the microscopic folding model based on the Jeukenne-Lejeune-Mahaux theory. Double-differential emission cross sections for neutron, proton, deuteron, triton, ^{3}He, alpha-particle and other heavier products were calculated using the Monte-Carlo method by which three-body simultaneous breakup process and two-body sequential decay process were taken into account in n+^{12}C multibody breakup reactions. Kerma factors calculated from the evaluated cross sections were also compared with measurements and other evaluations.

Original language | English |
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Pages (from-to) | 116-127 |

Number of pages | 12 |

Journal | journal of nuclear science and technology |

Volume | 34 |

Issue number | 2 |

DOIs | |

Publication status | Published - Jan 1 1997 |

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### All Science Journal Classification (ASJC) codes

- Nuclear and High Energy Physics
- Nuclear Energy and Engineering

### Cite this

**Evaluation of Neutron Cross Sections of Carbon-12 for Energies up to 80MeV.** / Harada, Masahide; Watanabe, Yukinobu.

Research output: Contribution to journal › Article

*journal of nuclear science and technology*, vol. 34, no. 2, pp. 116-127. https://doi.org/10.1080/18811248.1997.9733638

}

TY - JOUR

T1 - Evaluation of Neutron Cross Sections of Carbon-12 for Energies up to 80MeV

AU - Harada, Masahide

AU - Watanabe, Yukinobu

PY - 1997/1/1

Y1 - 1997/1/1

N2 - We have evaluated the cross sections of 12C for neutrons up to 80MeV, paying more attention to the intermediate energy range above 20MeV. For energies below 20MeV, the evaluated data of JENDL-3.2 were adopted with some modifications. In the energy range above 20MeV, total cross section and its covariance matrix were evaluated using a generalized least-squares method with available experimental data. The spherical optical model was used to evaluate reaction and elastic scattering cross sections. Inelastic scattering to the first 2+ state was calculated based on the DWBA. The optical potentials used in these calculations were obtained by means of the microscopic folding model based on the Jeukenne-Lejeune-Mahaux theory. Double-differential emission cross sections for neutron, proton, deuteron, triton, 3He, alpha-particle and other heavier products were calculated using the Monte-Carlo method by which three-body simultaneous breakup process and two-body sequential decay process were taken into account in n+12C multibody breakup reactions. Kerma factors calculated from the evaluated cross sections were also compared with measurements and other evaluations.

AB - We have evaluated the cross sections of 12C for neutrons up to 80MeV, paying more attention to the intermediate energy range above 20MeV. For energies below 20MeV, the evaluated data of JENDL-3.2 were adopted with some modifications. In the energy range above 20MeV, total cross section and its covariance matrix were evaluated using a generalized least-squares method with available experimental data. The spherical optical model was used to evaluate reaction and elastic scattering cross sections. Inelastic scattering to the first 2+ state was calculated based on the DWBA. The optical potentials used in these calculations were obtained by means of the microscopic folding model based on the Jeukenne-Lejeune-Mahaux theory. Double-differential emission cross sections for neutron, proton, deuteron, triton, 3He, alpha-particle and other heavier products were calculated using the Monte-Carlo method by which three-body simultaneous breakup process and two-body sequential decay process were taken into account in n+12C multibody breakup reactions. Kerma factors calculated from the evaluated cross sections were also compared with measurements and other evaluations.

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U2 - 10.1080/18811248.1997.9733638

DO - 10.1080/18811248.1997.9733638

M3 - Article

AN - SCOPUS:0342475415

VL - 34

SP - 116

EP - 127

JO - Journal of Nuclear Science and Technology

JF - Journal of Nuclear Science and Technology

SN - 0022-3131

IS - 2

ER -