Calculational models for parametric study on fast atom injectors

A model parametric analysis of known schemes of powerful neutral atom injectors for plasma heating in thermonuclear devices has been carried out. Injector variants are compared on the base of preliminary cost estimations of equipment used at experimental devices. Within the framework of the parametric model obtained the dependences of specific cost estimates on injection energy, the number of source modules in the injector and on its geometric sizes have been determined. It is shown, that specific capital expenditure on the injector depends considerably on energy of injected atoms