Speaker
Description
The metal gallium is a very interesting element on earth. It is a liquid at temperatures greater than 29.76 °C and has a very high boiling point (2229 ◦C). Gallium has widely been used to make alloys with low melting points and has become a candidate element in Chinese Initiative Accelerator Driven Systems (CIADS) project for liquid–metallic coolant [ ]. The neutron cross section of gallium is useful for nuclear device design. The experimental differential cross section data is still rare in fast neutron energy region. The secondary neutron emission differential and double-differential cross sections (DX and DDXs) of n + natGa have been measured at the neutron energy of 8MeV using the multi-detector fast neutron time-of-flight (NTOF) spectrometer in China Institute of Atomic Energy (CIAE). The data was derived by comparing the measured NTOF spectra with Monte Carlo simulation, and corrected with n-p scattering cross section in small angles. Measured differential cross sections are compared with evaluated data base. It was found that the experimental results of angular distribution were in agreement with CENDL-3.2 data base better than ENDF/B-VIII.0 data base.