Measurement of the temporal characteristics of delayed neutrons from neutron induced fission of <sup>237</sup>Np in the energy range from 14.2 to 18 MeV

Gremyachkin, D.E.; Piksaikin, V.M.; Egorov, A.S.; Mitrofanov, K.V.

doi:10.1051/epjconf/201714604059

EPJ Web Conf.

2017

DOI: 10.1051/epjconf/201714604059

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Measurement of the temporal characteristics of delayed neutrons from neutron induced fission of ²³⁷Np in the energy range from 14.2 to 18 MeV

D.E. Gremyachkin

V.M. Piksaikin

A.S. Egorov

et al.

Abstract: Abstract. Analysis of existing database on the relative abundances of delayed neutrons and half-lives of their precursors measured for neutron induced fission of heavy nuclei in the energy range above 14 MeV shows that such data are not available for many nuclides, which are important for nuclear fuel cycle. In the present work for the first time the time dependence of delayed neutron activity for the neutron-induced fission of 237 Np in the energy range above 14 MeV was obtained using T(d,n) 4 He.

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Cited by 4 publications

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“…The energy dependence of the average half-life of delayed-neutron precursors from neutron-induced fission of232 Th,237 Np,239 Pu,241 Am. The references of the data can be taken from the compilation by Spriggs and Campbell[248] except for the IPPE data[226,230,[232][233][234][252][253][254][255].…”

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confidence: 99%

Development of a Reference Database for Beta-Delayed Neutron Emission

Dimitriou

Dillmann

Singh

et al. 2021

Nuclear Data Sheets

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Neutron counting per fission ("fiss,n") 5. Neutron and γ counting ("n,γ") 6. Double γ counting ("γ,γ") 7. Ion and neutron counting ("ion,n") 8. Double ion counting ("ion,ion") B. Delayed neutron spectra 1. 3 He spectrometers 2. Gaseous proton recoil spectrometers 3. Neutron energy spectroscopy with time-of-flight spectrometers C. New methods (for P n values and energy spectra) 1. Total absorption γ-ray spectroscopy

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mentioning

confidence: 99%

Development of a Reference Database for Beta-Delayed Neutron Emission

Dimitriou

Dillmann

Singh

et al. 2021

Nuclear Data Sheets

View full text Add to dashboard Cite

show abstract

Investigation of the chance structure of the fission cross section of 238U by neutrons in energy range from 14 to 18 Mev using the delayed neutrons

Gremyachkin

Piksaikin

Egorov

et al. 2020

Progress in Nuclear Energy

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Generation of correlation and covariance matrices for the recommended temporal DN parameters in 6- and 8-group models

Piksaikin

Egorov

Gremyachkin

et al. 2020

EPJ Nuclear Sci. Technol.

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In the present work the new data on correlation and covariance matrices have been calculated for all recommended data on temporal parameters of delayed neutrons in 6- and 8-group models. The method for producing the correlation and covariance data for the temporal DN parameters is described. The table of changes is listed in the text. Some examples of the data generated on basis of experimental DN decay curves (for IPPE data) and data generated on the basis of decay curves restored using temporal parameters (for works of another authors) are listed too.

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Measurement of the temporal characteristics of delayed neutrons from neutron induced fission of ²³⁷Np in the energy range from 14.2 to 18 MeV

Cited by 4 publications

References 2 publications

Development of a Reference Database for Beta-Delayed Neutron Emission

Development of a Reference Database for Beta-Delayed Neutron Emission

Investigation of the chance structure of the fission cross section of 238U by neutrons in energy range from 14 to 18 Mev using the delayed neutrons

Generation of correlation and covariance matrices for the recommended temporal DN parameters in 6- and 8-group models

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Measurement of the temporal characteristics of delayed neutrons from neutron induced fission of 237Np in the energy range from 14.2 to 18 MeV

Cited by 4 publications

References 2 publications

Development of a Reference Database for Beta-Delayed Neutron Emission

Development of a Reference Database for Beta-Delayed Neutron Emission

Investigation of the chance structure of the fission cross section of 238U by neutrons in energy range from 14 to 18 Mev using the delayed neutrons

Generation of correlation and covariance matrices for the recommended temporal DN parameters in 6- and 8-group models

Contact Info

Product

Resources

About

Measurement of the temporal characteristics of delayed neutrons from neutron induced fission of ²³⁷Np in the energy range from 14.2 to 18 MeV