Title :
Wave-beam shaping using multiple phase-correction mirrors
Author :
Hirata, Yosuke ; Mitsunaka, Yoshika ; Hayashi, Kenichi ; Itoh, Yasuyuki
Author_Institution :
Energy & Mech. Res. Lab., Toshiba Corp., Kawasaki, Japan
fDate :
1/1/1997 12:00:00 AM
Abstract :
This paper describes a scheme for shaping a given wave beam into the desired profile using multiple phase-correction mirrors. This mirror system was applied to a gyrotron internal converter to flatten the radiated beam profile at the window. The flat output beam is reconverted into HE11 mode, a basic propagation mode for corrugated waveguides, by another pair of phase-correction mirrors for transmission into a fusion reactor. In addition, a wave-beam splitting and combining technique is also presented
Keywords :
electron beams; electron optics; gyrotrons; power combiners; HE11 mode; corrugated waveguides; flat output beam; gyrotron internal converter; multiple phase-correction mirrors; phase-correction mirrors; propagation mode; radiated beam profile; wave-beam combining; wave-beam shaping; wave-beam splitting; Coolants; Dielectric losses; Fusion reactors; Gaussian processes; Gyrotrons; Lenses; Mirrors; Power transmission lines; Propagation losses; Structural beams;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
