Title :
Design of an Electron Optics System for a
-Band Sheet Beam Klystron
Author :
Wang, Shuzhong ; Wang, Yong ; Ding, Yaogen ; Ruan, Cunjun
Author_Institution :
Inst. of Electron., Chinese Acad. of Sci., Beijing
fDate :
6/1/2008 12:00:00 AM
Abstract :
The design of an electron optics system for a W-band sheet beam klystron was described. An elliptically cylindrical electron gun and wiggler focusing structure were adopted to produce and guide a 80-kV 4-A sheet beam with an elliptical cross section of 10 times 0.4 mm. The wiggler focusing principle was reviewed and a practical structure was presented. MAFIA was used to simulate the structure. The simulation showed that the electron beam transmission attained 100% over 100 mm in distance with a fill factor that is less than 0.6.
Keywords :
electron beam focusing; electron guns; electron optics; klystrons; optical design techniques; optical klystrons; wigglers; W-band sheet beam klystron; current 4 A; electron beam transmission; electron optics system design; elliptical cross section; elliptically cylindrical electron gun; fill factor; voltage 80 kV; wiggler focusing structure; Cathodes; Electrodes; Electron beams; Electron optics; Focusing; Klystrons; Optical beams; Optical design; Structural beams; Undulators; Electron optics; sheet beam klystron; wiggler;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2008.923733