Measurements of neutron energy spectra of 9Be(d,n)10B reaction with a thick beryllium target * *Supported by the National Natural Science Foundation of China (11875155, 11705071, 12075105), the NSFC-Nuclear Technology Innovation Joint Fund (U1867213), the NSAF (U1830102), the Fundamental Research Funds for the Central Universities of China (lzujbky-2020-kb09) and the Project of National Defense Science and Technology Industry for Nuclear Power

Abstract

Novel measurements of the neutron energy spectra of the 9Be(d,n)10B reaction with a thick beryllium target are performed using a fast neutron time-of-flight (TOF) spectrometer for the neutron emission angles and , and the incident deuteron energies are 250 and 300 keV, respectively. The neutron contributions from the 9Be(d,n)10B reaction are distributed relatively independently for the ground state and the first, second, and third excited states of 10B. The branching ratios of the 9Be(d,n)10B reaction for the different excited states of 10B are obtained for the neutron emission angles and , and the incident deuteron energies are 250 and 300 keV, respectively. The branching ratio of the 9Be(d,n)10B reaction for the third excited state decreases with increase in the incident deuteron energy, and the branching ratios for the ground state and the second excited state increase with increase in the neutron emission angle.