Fast-neutron-induced fission cross section of 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Pu</mml:mi><mml:mprescripts /><mml:none /><mml:mn>242</mml:mn></mml:mmultiscripts></mml:math>
 measured at the neutron time-of-flight facility 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>n</mml:mi><mml:mi>ELBE</mml:mi></mml:math>

Kögler, T.; Junghans, A. R.; Beyer, R.; Dietz, M.; Düllmann, Ch. E.; Eberhardt, Κ.; Lorenz, Ch.; Müller, S.; Nolte, R.; Reinhardt, Tobias P.; Schmidt, K.; Runke, J.; Schwengner, R.; Takács, M. P.; Vascon, A.; Wagner, A.

doi:10.1103/physrevc.99.024604

Phys. Rev. C

2019

DOI: 10.1103/physrevc.99.024604

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Fast-neutron-induced fission cross section of Pu242 measured at the neutron time-of-flight facility nELBE

T. Kögler

A. R. Junghans

R. Beyer

et al.

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Measurement of ²⁴²Pu(n,f) in the 1-2 MeV energy range

Mathieu,

Aïche,

Marini

et al. 2024

EPJ Web of Conf.

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The design of new generation fast nuclear reactors requires highly accurate cross-section measurements in the MeV energy region. The 242Pu fission cross section is of particular interest for Pu incineration and nuclear waste production. There are discrepancies around 1 MeV incident neutron energy between libraries and among experimental data. Some data suggest the presence of a strong structure between 1 and 1.2 MeV whereas it is barely visible on some other data and its shape is very different among evaluations. The large majority of the 242Pu(n,f) measurements have been carried out with respect to the 235U(n,f) secondary-standard cross section. This introduces a strong correlation between measurements from different research teams. Moreover, this reference cross section exhibits structures, in particular a steep increase of +10% at 1 MeV. Therefore, we aim to re-measure the 242Pu(n,f) cross section relative to the primary-standard 1H(n,n)p cross section, by using a proton recoil detector. This standard has a very high accuracy (0.4%), is not used for other 242Pu measurements, and is structureless. An experiment has been carried out in October 2022 at the MONNET facility in JRC Geel, with incident neutron energies from 0.9 MeV to 2.0 MeV. The experimental setup will be presented, and the analysis procedure will be detailed.

show abstract

Measurement of ²⁴²Pu(n,f) in the 1-2 MeV energy range

Mathieu,

Aïche,

Marini

et al. 2024

EPJ Web of Conf.

View full text Add to dashboard Cite

show abstract

EXFOR-based simultaneous evaluation for neutron-induced fission cross section of plutonium-242

Okuyama,

Otuka,

Chiba

et al. 2023

Journal of Nuclear Science and Technology

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Neutron induced fission cross section measurements of $$^{240}$$Pu and $$^{242}$$Pu relative to the neutron–proton scattering cross section at 2.5 and 14.8 MeV

et al. 2022

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Fast-neutron-induced fission cross section of Pu242 measured at the neutron time-of-flight facility nELBE

Cited by 3 publications

References 34 publications

Measurement of ²⁴²Pu(n,f) in the 1-2 MeV energy range

Measurement of ²⁴²Pu(n,f) in the 1-2 MeV energy range

EXFOR-based simultaneous evaluation for neutron-induced fission cross section of plutonium-242

Neutron induced fission cross section measurements of $$^{240}$$Pu and $$^{242}$$Pu relative to the neutron–proton scattering cross section at 2.5 and 14.8 MeV

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Fast-neutron-induced fission cross section of Pu242 measured at the neutron time-of-flight facility nELBE

Cited by 3 publications

References 34 publications

Measurement of 242Pu(n,f) in the 1-2 MeV energy range

Measurement of 242Pu(n,f) in the 1-2 MeV energy range

EXFOR-based simultaneous evaluation for neutron-induced fission cross section of plutonium-242

Neutron induced fission cross section measurements of $$^{240}$$Pu and $$^{242}$$Pu relative to the neutron–proton scattering cross section at 2.5 and 14.8 MeV

Contact Info

Product

Resources

About

Measurement of ²⁴²Pu(n,f) in the 1-2 MeV energy range

Measurement of ²⁴²Pu(n,f) in the 1-2 MeV energy range