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Cross sections for ( n ,2 n ), ( n , p ) and ( n , n´α ) reactions have been measured on gallium isotopes at the neutron energies of 13.5–14.8 MeV using the activation technique. The monoenergetic neutron beam was produced  via  the  3 H( d , n )  4 He reaction. The neutron fluences were determined using the monitor reaction  27 Al( n , α )  24 Na. The activities induced in the reaction products were measured using high-resolution gamma-ray spectrometry. Data are reported for the following reactions:  69 Ga( n ,2 n )  68 Ga,  71 Ga( n ,2 n )  70 Ga,  69 Ga( n , p ) 69m Zn,  71 Ga( n , p ) 71m Zn and  71 Ga( n , n´α )  67 Cu. Nuclear model calculations using the code HFTT, which employs the Hauser–Feshbach (statistical model) and exciton model (precompound effects) formalisms, were undertaken to describe the formation of the reaction products. Results are discussed and compared with some corresponding values found in the literature, with some established systematics and with the evaluated data given in ENDF/B-VII.0, CENDL-3.1 and JENDL-4.0.

Cross section measurements for gallium in the neutron energy range of 13.5 to 14.8MeV