The 50Cr(n,2n)49Cr, 52Cr(n,2n)51Cr, 52Cr(n,p)52V, 55Mn(n,2n)54Mn, 55Mn(n,α)52V and 55Mn(n,γ)56Mn reaction cross sections at the neutron energy of 14.54 ± 0.24 MeV were measured by using activation method along with off-line γ-ray spectrometry. The 27Al(n,p)27Mg monitor reaction was used for the 52Cr(n,p)52V and 55Mn(n,α)52V reactions, whereas the 197Au(n,γ)198Au monitor reaction for the 55Mn(n,γ)56Mn reaction. The 27Al(n,α)24Na monitor reaction was used for other three reactions. The neutron beam was generated from the T(d,n)4He reaction using the Purnima neutron generator at BARC, Mumbai. The covariance analysis for the uncertainties of reaction cross sections was performed by considering the correlations between different attributes. The present results were compared with the literature data, evaluated data of ENDF, ROSFOND, CENDL, JENDL and JEFF libraries as well as with the theoretical values based on TALYS-1.9 calculation.

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 relative to the 197 Au(n,2n) 196 Au monitor reaction have been determined at the neutron energy of 14.54 ± 0.002 MeV by using the method of activation and off-line γ-ray spectrometry. The neutron energy used was obtained from the 3 H(d,n) 4 He reaction. The covariance analysis was performed by taking the uncertainties arising in various attributes and the correlations between those attributes. The analyzed results from the present measurement were compared with the literature data and evaluated data of various libraries like ENDF/B-VIII, JEFF-3.3, JENDL-4.0 and ROSFOND-2010 libraries as well as with the calculated values based on TALYS-1.9 code. Keywords 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 reactions • 3 H(d,n) 4 He reaction neutron • γ-Ray spectrometry • Covariance analysis • TALYS-1.9

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

The 93 Nb(n,α) 90m Y, 93 Nb(n,2n) 92m Nb and 92 Mo(n,p) 92m Nb reaction cross sections have been measured relative to the 197 Au(n,2n) 196 Au monitor reaction at the neutron energy of 14.54 ± 0.24 MeV. The neutrons were generated from the T(d,n) 4 He reaction using Purnima neutron generator. The experiment was done by using the method of activation in combination with an off-line -ray spectrometry technique. The uncertainties and correlations for the reaction cross sections were estimated with the use of covariance analysis by considering the partial uncertainties in individual attributes. The measured reaction cross sections have been analyzed by comparing with the data available in EXFOR compilation, various files of evaluated data and theoretically calculated values from TALYS-1.9. Keywords 93 Nb(n,α) 90m Y, 93 Nb(n,2n) 92m Nb and 92 Mo(n,p) 92m Nb reactions • T(d,n) 4 He reaction neutron • Activation • Off line -ray spectrometry • Covariance analysis • TALYS-1.9