AbstractThe 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.
本报告介绍了俄罗斯170 GHz/1 MW回旋管的研发成果。目前大功率回旋管的主要问题（高质量螺旋电子束的形成、高效腔体模式的选择、内部转换器损耗的降低、可靠的集电极和输出窗口）已得到讨论。文中介绍了回旋管主要部件的设计版本，包括短脉冲原型机、第一代和第二代工业样机以及测试装置。此外，还对先进的170 GHz ITER回旋管进行了研究，包括单级降压收集极版本（CPD）以及改进型输出窗口（FZK的CVD金刚石窗口）。通过计算和实验，验证了研制用于ITER的高效170 GHz/1 MW回旋管的可行性。