Abstract: A travelling wave resonant ring accelerator method and apparatus is disclosed which includes a generator of radio frequency source energy and a low dispersion accelerator waveguide interconnected by a microwave bridge network that combines said source energy and said accelerator remnant energy and directs said combined energy to the input of the accelerator waveguide under desired conditions with the bridge balanced. The method and apparatus simultaneously maintain (a) the optimum beam-wave phase relationship in the accelerator waveguide and (b) the correct electrical length of the resonant ring, regardless of wide variations in ambient temperature, by maintaining a balanced bridge condition by automatically adjusting the frequency of the source energy.

Abstract: A method and apparatus for producing high intensity x-rays and directing such x-rays toward an object of interest from a fixed target by producing a high power electron beam, selectively directing that beam by means of selectively activated electromagnetic elements having no mechanically moving parts either to preselected points on the target for production of x-rays therefrom or to an x-ray shielded beam collector positioned generally adjacent the target.

Abstract: A method and apparatus for producing high intensity x-rays and directing such x-rays toward an object of interest from a fixed annular target by producing a high power electron beam, selectively directing that beam by means of selectively activating electromagnetic elements having no mechanically moving parts to preselected points on the target for production of x-rays therefrom and correcting selected beam aberrations imposed upon the electron beam by the beam directing elements.