Effective Yield Analysis of 14 MeV Neutrons Induced by Thermal Neutrons in ~⁶LiD

The principle of thermal neutron converting to 14MeV neutron is briefly introduced.A calculation and analysis model for 14MeV neutron effective production is established.The probability for the thermal neutron absorbed by 6Li and for T not leaked in ⁶LiD are calculated.The cross sections for T and D fusion reaction and T and 6Li fusion reaction are proposed,and the curves for the effective yields of 14 MeV neutron with the thickness of ⁶LiD is given.The results show that when ⁶LiD thickness is between 0 and 0.5mm,the effective yields of 14MeV with ⁶LiD thickness almost augment linearly,and then gradually remain at a set value;and when ⁶LiD thickness is 0.7mm and 1.0mm,the effective yields of a thermal neutron converted to 14 MeV neutron is 3.18×10^-4 and 3.53 ×10^-4,respectively.