Efficient prediction of (p,n) yields

Swift, D C ; McNaney, J M ; Higginson, D P ; Beg, F

关键词: ACCELERATION;    APPROXIMATIONS;    CHARGED PARTICLES;    FORECASTING;    NEUTRONS;    NUCLEAR REACTIONS;    PROTONS;   

DOI  :  10.2172/967725
RP-ID  :  LLNL-TR-417474
PID  :  OSTI ID: 967725
Others  :  TRN: US0904557

美国|英语

来源: SciTech Connect

【 摘 要 】

In the continuous deceleration approximation, charged particles decelerate without any spread in energy as they traverse matter. This approximation simplifies the calculation of the yield of nuclear reactions, for which the cross-section depends on the particle energy. We calculated (p,n) yields for a LiF target, using the Bethe-Bloch relation for proton deceleration, and predicted that the maximum yield would be around 0.25% neutrons per incident proton, for an initial proton energy of 70 MeV or higher. Yield-energy relations calculated in this way can readily be used to optimize source and (p,n) converter characteristics.