S. Amaducci, M. Bacak, E. Griesmayer, E. Jericha, P. Kavrigin, H. Leeb, C. Weiß, -. n_TOF Collaboration et al.:
"Accurate measurement of the standard 235U(n,f) cross section from thermal to 170 keV neutron energy";
EPJ Web of Conferences, 239 (2020), 08002; S. 1 - 5.

Kurzfassung englisch:
An accurate measurement of the 235U(n,f) cross section from thermal to 170 keV of neutron energy has recently been performed at n_TOF facility at CERN using 6Li(n,t)4He and 10B(n,α)7Li as references. This measurement has been carried out in order to investigate a possible overestimation of the 235U fission cross section evaluation provided by most recent libraries between 10 and 30 keV. A custom experimental apparatus based on in-beam silicon detectors has been used, and a Monte Carlo simulation in GEANT4 has been employed to characterize the setup and calculate detectors efficiency. The results evidenced the presence of an overestimation in the interval between 9 and 18 keV and the new data may be used to decrease the uncertainty of 235U(n,f) cross section in the keV region.

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