The revival of interest for production of neutrons by light projectiles has
been recently renewed because they are the basis in the development of pow
erful neutron sources for various applications like nuclear energy producti
ons and incineration of nuclear waste, material structure analysis, tritium
production, etc. Another interest is related to the possibility of the pro
duction of radioactive ion beams (RIB) by neutron induced fission. One of t
he most important tasks in this context is to determine the most efficient
way to convert the primary beam energy into neutrons produced afterwards. T
he problem is investigated by varying the incident energy of different proj
ectiles for different target materials and assemblies. Consequently, a few
direct applications of our investigations are presented and compared with e
xperimental data or other theoretical estimations.