Neptunium 237

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Naohiro Hirakawa - One of the best experts on this subject based on the ideXlab platform.

  • measurement of fast neutron induced fission cross section ratio of Neptunium 237 relative to uranium 235 between 6 and 120 kev
    Journal of Nuclear Science and Technology, 1999
    Co-Authors: Tomohiko Iwasaki, Keiichiro Saito, M Baba, Toshiya Sanami, Yasushi Nauchi, Naohiro Hirakawa
    Abstract:

    To obtain the nuclear data for 237Np which plays an important role in high burn-up reactors and transmutation systems, we measured neutron-induced fission cross section ratios of 237Np relative to 235U between 6 and 120 keV using a pulsed white neutron source produced by the 4.5 MV Dynamitron accelerator of Tohoku University. The fission cross section ratios were measured by two separate runs with the experimental errors of 7% to 25%. The results by two separate runs agreed within the experimental errors. The fission cross section of 237Np was deduced by averaging two results and by using the fission cross section of U taken from JENDL3.2. The present results agreed with the result of Hoffman et al. and was consistent with the newest experimental result by Yamanaka et al. The present result around 10keV agreed with JENDL3.2, while those near 100 keV were close to ENDF/B-VI.

Tomohiko Iwasaki - One of the best experts on this subject based on the ideXlab platform.

  • measurement of fast neutron induced fission cross section ratio of Neptunium 237 relative to uranium 235 between 6 and 120 kev
    Journal of Nuclear Science and Technology, 1999
    Co-Authors: Tomohiko Iwasaki, Keiichiro Saito, M Baba, Toshiya Sanami, Yasushi Nauchi, Naohiro Hirakawa
    Abstract:

    To obtain the nuclear data for 237Np which plays an important role in high burn-up reactors and transmutation systems, we measured neutron-induced fission cross section ratios of 237Np relative to 235U between 6 and 120 keV using a pulsed white neutron source produced by the 4.5 MV Dynamitron accelerator of Tohoku University. The fission cross section ratios were measured by two separate runs with the experimental errors of 7% to 25%. The results by two separate runs agreed within the experimental errors. The fission cross section of 237Np was deduced by averaging two results and by using the fission cross section of U taken from JENDL3.2. The present results agreed with the result of Hoffman et al. and was consistent with the newest experimental result by Yamanaka et al. The present result around 10keV agreed with JENDL3.2, while those near 100 keV were close to ENDF/B-VI.

M Baba - One of the best experts on this subject based on the ideXlab platform.

  • measurement of fast neutron induced fission cross section ratio of Neptunium 237 relative to uranium 235 between 6 and 120 kev
    Journal of Nuclear Science and Technology, 1999
    Co-Authors: Tomohiko Iwasaki, Keiichiro Saito, M Baba, Toshiya Sanami, Yasushi Nauchi, Naohiro Hirakawa
    Abstract:

    To obtain the nuclear data for 237Np which plays an important role in high burn-up reactors and transmutation systems, we measured neutron-induced fission cross section ratios of 237Np relative to 235U between 6 and 120 keV using a pulsed white neutron source produced by the 4.5 MV Dynamitron accelerator of Tohoku University. The fission cross section ratios were measured by two separate runs with the experimental errors of 7% to 25%. The results by two separate runs agreed within the experimental errors. The fission cross section of 237Np was deduced by averaging two results and by using the fission cross section of U taken from JENDL3.2. The present results agreed with the result of Hoffman et al. and was consistent with the newest experimental result by Yamanaka et al. The present result around 10keV agreed with JENDL3.2, while those near 100 keV were close to ENDF/B-VI.

Keiichiro Saito - One of the best experts on this subject based on the ideXlab platform.

  • measurement of fast neutron induced fission cross section ratio of Neptunium 237 relative to uranium 235 between 6 and 120 kev
    Journal of Nuclear Science and Technology, 1999
    Co-Authors: Tomohiko Iwasaki, Keiichiro Saito, M Baba, Toshiya Sanami, Yasushi Nauchi, Naohiro Hirakawa
    Abstract:

    To obtain the nuclear data for 237Np which plays an important role in high burn-up reactors and transmutation systems, we measured neutron-induced fission cross section ratios of 237Np relative to 235U between 6 and 120 keV using a pulsed white neutron source produced by the 4.5 MV Dynamitron accelerator of Tohoku University. The fission cross section ratios were measured by two separate runs with the experimental errors of 7% to 25%. The results by two separate runs agreed within the experimental errors. The fission cross section of 237Np was deduced by averaging two results and by using the fission cross section of U taken from JENDL3.2. The present results agreed with the result of Hoffman et al. and was consistent with the newest experimental result by Yamanaka et al. The present result around 10keV agreed with JENDL3.2, while those near 100 keV were close to ENDF/B-VI.

Yasushi Nauchi - One of the best experts on this subject based on the ideXlab platform.

  • measurement of fast neutron induced fission cross section ratio of Neptunium 237 relative to uranium 235 between 6 and 120 kev
    Journal of Nuclear Science and Technology, 1999
    Co-Authors: Tomohiko Iwasaki, Keiichiro Saito, M Baba, Toshiya Sanami, Yasushi Nauchi, Naohiro Hirakawa
    Abstract:

    To obtain the nuclear data for 237Np which plays an important role in high burn-up reactors and transmutation systems, we measured neutron-induced fission cross section ratios of 237Np relative to 235U between 6 and 120 keV using a pulsed white neutron source produced by the 4.5 MV Dynamitron accelerator of Tohoku University. The fission cross section ratios were measured by two separate runs with the experimental errors of 7% to 25%. The results by two separate runs agreed within the experimental errors. The fission cross section of 237Np was deduced by averaging two results and by using the fission cross section of U taken from JENDL3.2. The present results agreed with the result of Hoffman et al. and was consistent with the newest experimental result by Yamanaka et al. The present result around 10keV agreed with JENDL3.2, while those near 100 keV were close to ENDF/B-VI.