Measurements of 2.5 MeV neutron emission from beam-target reactions performed at the ELISE neutral beam test facility are presented in this paper. The measurements are used to study the penetration of a deuterium beam in a copper dump, based on the observation of the time evolution of the neutron counting rate from beam-target reactions with a liquid scintillation detector. A calculation based on a local mixing model of deuterium deposition in the target up to a concentration of 20% at saturation is used to evaluate the expected neutron yield for comparison with data. The results are of relevance to understand neutron emission associated to beam penetration in a solid target, with applications to diagnostic systems for the SPIDER and MITICA Neutral Beam Injection prototypes.
All Science Journal Classification (ASJC) codes
Xufei, X., Nocente, M., Bonomo, F., Franzen, P., Fröschle, M., Grosso, G., ... Gorini, G. (2014). Neutron measurements from beam-target reactions at the ELISE neutral beam test facility. Review of Scientific Instruments, 85(11), -. [11D864]. https://doi.org/10.1063/1.4896177