Compact long-lived neutron source

摘要

A compact apparatus with long lifetime for producing high- energy neutrons is described which is suitable for application to neutron well- logging and to activation analysis. It embodies a tritiated target bombarded by a beam of energetic deuterium ions, the ions passing through a magnetic field which rotates about the axis of the beam, thereby dispersing the ion beam into a plurality of ion beams, each with a single value of charge-to-mass ratio. Each of the separated beams impinges on a separate, concentric, annulus-shaped area of the target.