Author/Authors :
Zapevalov، نويسنده , , V.E and Denisov، نويسنده , , G.G and Flyagin، نويسنده , , V.A and Sh. Fix، نويسنده , , A and Kuftin، نويسنده , , A.N and Litvak، نويسنده , , A.G and Agapova، نويسنده , , M.V and Iljin، نويسنده , , V.N and Khmara، نويسنده , , V.A and Myasnikov، نويسنده , , V.E and Nichiporenko، نويسنده , , V.O and Popov، نويسنده , , L.G and Usachev، نويسنده , , S.V and Alikaev، نويسنده , , V.V and Iljin، نويسنده , , V.I، نويسنده ,
Abstract :
The report presents the results of development of the 170 GHz/1 MW gyrotrons in Russia. The main problems of powerful gyrotrons at present (formation of a high quality helical electron beam, selection of a high efficiency cavity mode, decreasing of inner converter losses, reliable collector and output window) are discussed. The design versions of the main parts of gyrotrons including the short-pulse prototype, first and second versions of industrial models and test set-up are presented. Advanced 170 GHz ITER gyrotrons were also investigated including a single-stage depressed collector versions (CPD) as well as an improved window (CVD diamond window from FZK). The possibility to make high efficient 170 GHz/1 MW gyrotron for ITER is proved by calculations and experiments.
