PROJECT OF ELECTRON GUN FOR MICROWAVE DEVICES WITH THERMALLY EXPANDED GRAPFITE CATHODES ArticleAkimov P.I., Bogoslovskaya A.B., Kuzmich C.V., Melnichuk V.A., Nikitin A.P., Chudin V.G., Sechin H.E., Chadaev N.N.TENTH INTERNATIONAL VACUUM ELECTRON SOURCES CONFERENCE AND SECOND INTERNATIONAL CONFERENCE ON EMISSION ELECTRONICS (IVESC-ICEE-ICCTPEA-BDO-2014). St. Petersburg, 30 июня-04 июля 2014 г.. 2014. С. 5-6