The 238U fission cross section is an international standard beyond 2 MeV where the fission plateau starts. However, due to its importance in fission reactors, this cross-section should be very accurately known also in the threshold region below 2 MeV. The 238U fission cross section has been measured relative to the 235U fission cross section at...
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December 1, 2016 (v1)PublicationUploaded on: March 27, 2023
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April 5, 2017 (v1)Publication
The neutron-induced fission cross section of 245Cm was measured at n-TOF in a wide energy range and with high resolution. The energy dependence, measured in a single measurement from 30 meV to 1 MeV neutron energy, has been determined with 5% accuracy relative to the 235U(n,f) cross section. In order to reduce the uncertainty on the absolute...
Uploaded on: March 25, 2023 -
April 5, 2017 (v1)Publication
The neutron-induced fission cross section of 236U was measured at the neutron Time-of-Flight (n-TOF) facility at CERN relative to the standard 235U(n,f) cross section for neutron energies ranging from above thermal to several MeV. The measurement, covering the full range simultaneously, was performed with a fast ionization chamber, taking...
Uploaded on: December 5, 2022 -
April 26, 2017 (v1)Publication
The 233U(n,f) cross section has been measured at the white neutron source n-TOF in a wide energy range with a dedicated fission ionization chamber. We report here the results from ∼30 meV to 1 MeV neutron energy. The 233U(n,f) cross section has been determined relative to a reference sample of 235U(n,f) measured simultaneously with the same...
Uploaded on: March 27, 2023 -
April 1, 2020 (v1)Publication
The slow neutron capture process (s-process) is responsible for producing about half of the elemental abundances heavier than iron in the universo.
Uploaded on: March 25, 2023 -
January 24, 2018 (v1)Publication
The 238U to 235U fission cross section ratio has been determined at n_TOF up to ≈1 GeV, with two different detection systems, in different geometrical configurations. A total of four datasets has been collected and compared. They are all consistent to each other within the relative systematic uncertainty of 3–4%. The data collected at n_TOF...
Uploaded on: December 4, 2022