Title :
A coaxial magnetron injection gun - recent experimental results and an improved gun design
Author_Institution :
Inst. fur Hochleistungsimpuls- und Mikrowellentechnik, Forschungszentrum Karlsruhe Assoc. EURATOM-FZK, Germany
Abstract :
This paper deals with coaxial magnetron injection gun with an RF output power of 2 MW, CW, operated at 170 GHz for the ITER Tokamak. Experiments are performed on a coaxial gyrotron operated in the TE31, 17 mode. The gyrotron is of demountable type with no sweeping of the electron beam along collector surface. The guns operating with depressed collector a significantly more dense plasma along the beam path may be created. Penning discharge due to trapping of electrons, a new CMIG gun has been designed. The gun is fabricated for use in a 2 MW, 170 GHz coaxial gyrotron operated in the TE34,19 mode.
Keywords :
Penning discharges; Tokamak devices; electron guns; electron traps; gyrotrons; magnetrons; plasma density; 170 GHz; 2 MW; Penning discharge; TE mode; Tokamak devices; coaxial gyrotron; coaxial magnetron injection gun; collector surface; dense plasma; electron beam sweeping; electrons trapping; Coaxial components; Electron beams; Guns; Gyrotrons; Plasma density; Power generation; Radio frequency; Surface discharges; Tellurium; Tokamaks;
Conference_Titel :
Vacuum Electronics, 2003 4th IEEE International Conference on
Print_ISBN :
0-7803-7699-4
DOI :
10.1109/IVEC.2003.1286299
