Applicability of a conical cavity as a target for generation of neutrons in a linear accelerator

Results of the study are presented, which demonstrate the applicability of targets with a tapered surface of the reaction layer for generation of neutrons in linear accelerators of hydrogen nuclides in the nuclear reactions T(d, n)⁴He, T(p, n)³He, and D(d, n)³He. An algorithm is proposed for calculating the neutron yield, taking into account possible changes in the concentration of hydrogen isotopes in the target with depth. As a result of computer simulations, the dependence of the neutron yield on the cone angle has been established, and the possibility has been shown of increasing the neutron yield from a target with a conical surface of its reaction layer without changing its thickness.