FIELD: physics.
SUBSTANCE: in order to generate optimum neutron flux using the 7Li(p,n)7Be reaction in the disclosed invention, instead of using 3-layer targets comprising: a neutron-generating layer, a proton beam absorbing layer and a heat-removing layer, which also provides mechanical strength of the entire structure, the proton beam absorber is merged with the heat-removing layer and is made of tantalum. To provide mechanical strength and small temperature drop during heat removal, the neutron-generating target is made from 20 tantalum tubes with diameter of 5 mm with wall thickness of 0.2 mm, length off 113 mm, arranged in two rows and soldered into a copper housing (shell).
EFFECT: longer service life, low level of undesirable accompanying radiation and high efficiency of heat removal in order to maintain the lithium layer in a solid state.
3 cl, 2 dwg
