DocumentCode :
2901739
Title :
Effect of aperture in a pole piece for focusing of multi beam electron gun
Author :
Nehra, Ashok ; Joshi, L.M. ; Kaushik, S. ; Gupta, R.K.
Author_Institution :
Microwave Tubes Div., Council of Sci. & Ind. Res. (CSIR), Pilani, India
fYear :
2011
fDate :
21-24 Feb. 2011
Firstpage :
187
Lastpage :
188
Abstract :
Conventional microwave tubes generally use cylindrical electron beam coaxial to RF interaction circuit for generation or amplification of microwave signals. Many performance limitations these tubes in respect of band width, efficiency, voltage break have been addressed by emerging multi-beam technology which uses several low perveance electron beams in place of single beam used in conventional tubes. Design and development of a four beam electron gun is being attempted at CEERI with an aim to develop a multi-beam klystron. An approach has been developed to design four beam electron gun and focusing system. Effect of pole pieces for confinement of beam is studied and a proper pole piece size and shape is investigated using software OPERA 3D and OmniTrak simulation codes to enhance laminarity of beam. The paper presents the some of design results.
Keywords :
electron beam focusing; electron guns; klystrons; microwave tubes; radiofrequency integrated circuits; OPERA 3D software; OmniTrak simulation code; RF interaction circuit; beam laminarity; cylindrical electron beam; focusing system; microwave signal amplification; microwave signal generation; microwave tube; multibeam electron gun; multibeam klystron; multibeam technology; voltage break; Apertures; Electron beams; Electron tubes; Focusing; Magnetic fields; Three dimensional displays; Trajectory; Confined Flow; Multi-Beam Electron Gun; Pole Piece; Solenoid focusing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2011 IEEE International
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8662-5
Type :
conf
DOI :
10.1109/IVEC.2011.5746938
Filename :
5746938
Link To Document :
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