93Nb(n,2n)92mNb, 93Nb(n,α)90mY and 92Mo(n,p)92mNb reactions at 14.78 MeV and covariance analysis

Abstract

The cross sections for the 93 Nb(n,2n) 92m Nb, 93 Nb(n,α) 90m Y and the 92 Mo(n,p) 92m Nb reactions have been measured with respect to the 197 Au(n,2n) 196 Au monitor reaction at the incident neutron energy of 14.78 ± 0.19 MeV by employing methods of activation and off-line γ-ray spectrometry. The covariance analysis was carried out by taking into consideration of partial uncertainties in different attributes and correlation among the attributes. The present data have been compared with the literature data available in EXFOR, evaluated data of different libraries and theoretical values based on TALYS-1.8 code. Keywords 93 Nb(n,2n) 92m Nb, 93 Nb(n,α) 90m Y and 92 Mo(n,p) 92m Nb reactions • Cross sections • 3 H(d,n) 4 He reaction neutron • Activation and off line γ-ray spectrometry • Covariance analysis • TALYS-1.8

Measurement of 67Zn(n,p)67Cu, 64Zn(n,2n)63Zn, 89Y(n,γ)90mY and 89Y(n,2n)88Y reaction cross sections at the neutron energy of 14.54 MeV with covariance analysis

“…The readers are suggested to refer the Refs. [31,41,42] for more details on micro-correlations. The measured results for the 67 Zn(n,p) 67 Cu, 64 Zn(n,2n) 63 Zn, 89 Y(n,γ) 90m Y and 89 Y(n,2n) 88 Y reaction cross sections at t he 14.54 ± 0.002 MeV neutron energy with uncertainties and correlations are summarized in Table 6.…”

14.77 MeV neutron-induced nuclear reaction cross sections for zinc, yttrium, and molybdenum targets*

“…The experimental data of Refs. [156,157] changed by 1% after normalization with the IRDFF-II evaluation of the 197 Au(n, 2n)…”