Measurements Of Neutron Energy Spectra Of Be-9(D,N)B-10 Reaction With A Thick Beryllium Target

Novel measurements of the neutron energy spectra of the Be-9(d,n)B-10 reaction with a thick beryllium target are performed using a fast neutron time-of-flight (TOF) spectrometer for the neutron emission angles theta = 0 degrees and 45 degrees, and the incident deuteron energies are 250 and 300 keV, respectively. The neutron contributions from the Be-9(d,n)B-10 reaction are distributed relatively independently for the ground state and the first, second, and third excited states of B-10. The branching ratios of the Be-9(d,n)B-10 reaction for the different excited states of B-10 are obtained for the neutron emission angles theta = 0 degrees and 45 degrees, and the incident deuteron energies are 250 and 300 keV, respectively. The branching ratio of the Be-9(d,n)B-10 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.