I.A. Guzilov - Ph. D. (Eng.), Main Designer, «Vacuum devices basic technologies» Ltd (Moscow). E-mail: iag@bk.ru O.Yu. Maslennikov - Dr. Sc. (Eng.), Prof., Deputy General Director, «Vacuum devices basic technologies» Ltd (Moscow). E-mail: maslennikov_o@mail.ru V.N. Ilyin - Ph. D. (Eng.), Main Technologist, «Vacuum devices basic technologies» Ltd (Moscow) A.A. Kornyukhin - Deputy Commander, «Vacuum devices basic technologies» Ltd (Moscow) M.A. Tokaev - «Vacuum devices basic technologies» Ltd (Moscow) M.V. Chernova - Leading Technologist, «Vacuum devices basic technologies» Ltd (Moscow) V.S. Sizenev - Ph. D. (Eng.), JSC «Composite» (Korolev, Moscow region) L.S. Gitarskiy - employee of JSC «Composite» (Korolev, Moscow region)

The paper deals with beryllium windows providing output of X ray produced by multi-cathode source. Constructive and technological parameters of these windows with apertures of 165×35 mm-mm and 320×30 mm-mm are presented. Developing of the windows with large aperture has been made for the first time. As a result, national multi-cathode X ray tube providing digital 3D mammography mode (tomosynthesis) has been developed.

 

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