New insights on fission of 235U induced by high energy neutrons from a new measurement at n_TOF

(2025) New insights on fission of 235U induced by high energy neutrons from a new measurement at n_TOF. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 860: 139213. ISSN 0370-2693

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The 235U(n, f) reaction cross section was measured relative to neutron-proton elastic scattering for the first time in the energy region from 10 MeV to 440 MeV at the CERN n_TOF facility, extending the upper limit of the only previous measurement in the literature by more than 200 MeV. For neutron energies below 200 MeV, our results agree within one standard deviation with data in literature. Above 200 MeV, the comparison of model calculations to our data indicates the need to introduce a transient time in neutron-induced fission to allow the simultaneous description of (n, f) and (p, f) reactions.

Item Type	Article
Additional information	© 2024 Published by Elsevier B.V. Funded by SCOAP³. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords	cross section measurement, fission process, high energy, neutron-induced reaction, nuclear reaction, n_tof, uranium-235, nuclear and high energy physics
Date Deposited	15 May 2025 15:48
Last Modified	31 May 2025 00:47

picture_as_pdf: 1-s2.0-S0370269324007718-main.pdf
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