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Mastromarco, M.*; Amaducci, S.*; Colonna, N.*; Kimura, Atsushi; 118 of others*
European Physical Journal A, 58(8), p.147_1 - 147_13, 2022/08
Times Cited Count:0 Percentile:0.02(Physics, Nuclear)no abstracts in English
Amaducci, S.*; Harada, Hideo; Kimura, Atsushi; 118 of others*
European Physical Journal A, 55(7), p.120_1 - 120_19, 2019/07
Times Cited Count:16 Percentile:88.29(Physics, Nuclear)The U(n, f) cross section was measured at n_TOF relative to
Li(n, t) and
B(n,
), in a wide energy range (25 meV
170 keV) with 1.5% systematic uncertainty, making use of a stack of six samples and six silicon detectors placed in the neutron beam. The present results indicate that the cross section in the 9
18 keV neutron energy range is indeed overestimated by almost 5% in the recently released evaluated data files ENDF/B-VIII.0 and JEFF3.3. Furthermore, these new high-resolution data confirm the existence of resonance-like structures in the keV neutron energy region. From the present data, a value of 249.7
1.4(stat)
0.94(syst) b eV has been extracted for the cross section integral between 7.8 and 11 eV, confirming the value of 247.5
3 b eV recently established as a standard.