Patent Number: 
Section: claims

1. An X-ray source with optical indication of X-ray radiation comprising:an X-ray source housing with an exit window wherein the exit window comprisesan anode assembly having a radiolucent substrate and a metal layer, wherein the metal layer is partially transparent for high energy electrons and the radiolucent substrate is transparent in optical range and fluoresces under the influence of high energy electrons;a cathode assembly that creates electron flow irradiating the anode assembly;a system of electrostatic lenses that focus electrons irradiating the anodes, andgenerating a divergent flux of radiation, wherein said electrons simultaneously create excitation areas in said radiolucent substrate and said metal layer, from which divergent fluxes of optical and X-ray radiation, respectively are generated;a first diaphragm and a protective housing having;an optical mirror located behind the exit window of the X-ray source housing,coaxially arranged means of collimation and focusing of X-ray and optical radiation, wherein the optical mirror is located off-axis from the X-ray beam in the region of divergent radiation flux generated by the anode, andan exit optical window through which a camera provides the optical indication of X-ray radiation. 2. The X-ray source according to claim 1 wherein the radiolucent substrate is made of an optically activated synthetic diamond crystal. 3. The X-ray source according to claim 1 wherein the means of collimation and focusing of X-ray and optical radiation are made of radiolucent plastic material, such as polycarbonate. 4. The X-ray source according to claim 1 wherein it further comprises means of visualization of the anode image reflected by the optical mirror.