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Design of high power microfocus X ray tube


E.Yu. Grachev – Ph. D. (Eng.), Associate Professor, Department «Industrial Electronics», Ryazan State Radio Engineering University E-mail: V.S. Gurov – Dr. Sc. (Eng.), Professor, Head of Department «Industrial Electronics», Rector of Ryazan State Radio Engineering University E-mail: A.A. Skuntsev – Junior Research Scientist, Ryazan State Radio Engineering University E-mail: A.A. Trubitsyn – Dr. Sc. (Phys.-Math.), Professor, Department «Industrial Electronics», Ryazan State Radio Engineering University E-mail:

Microfocus x ray tubes (sources) are tools for extracting the unique information concerning the micro - and macrostructure of materials examined, their chemical status. The purpose of this study is to create a transmission microfocus tube with a simple design and much higher power than tubes with a flat anode. The basic technical idea underlying the design of the tube is to create a continuous high power X ray flux diverging from a small area. X rays are generated in the process of reflection and absorption of pre-accelerated hollow cylindrical electron stream by the walls of the channel. Chanel is performed as a funnel in the massive anode. CAE «FOCUS» is developing in the present work for the effective solution of problems of electron-optical systems (EOS) numerical modeling. CAE «FOCUS» allowed us to develop and optimize the electron-optical scheme of the x ray tube in the shortest time. The tube produses the hollow and accelerated electron flow with diameter d, which is parallel to the axis of symmetry at the entrance to funnel channel. X ray radiation of high power is generated in the channel. 3D-model of the microfocus x ray tube is designed with using the CAD SolidWorks.


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