Title : 
Magnetic cusp-based electron beam source for a helically corrugated gyro-TWA
         
        
            Author : 
Young, A.R. ; Whyte, C.G. ; Robertson, C.W. ; Rowlands, D.H. ; Phelps, A.D.R. ; He, W. ; Ronald, K. ; Cross, A.W.
         
        
            Author_Institution : 
Phys. Dept., Univ. of Strathclyde, Glasgow
         
        
        
        
        
        
            Abstract : 
The latest results of experiments of an X-band gyro-TWA with a helically corrugated interaction region and a cusp electron beam source are presented. The cusp electron beam source uses a cold field emission emitter to produce a 37A beam accelerated with a potential of 130kV. Numerical investigations of the gyro-TWA have been completed and used to predict the saturated and small signal gain of the gyro- TWA devices. These predictions are compared with the experimental results obtained.
         
        
            Keywords : 
electron beams; electron field emission; travelling wave amplifiers; X-band gyro-TWA; cold field emission emitter; frequency 8 GHz to 12 GHz; helically corrugated gyro-TWA; helically corrugated interaction region; magnetic cusp-based electron beam source; Cusp; Gyrotron Travelling Wave Amplifier;
         
        
        
        
            Conference_Titel : 
High Power RF Technologies, 2009. IET. Conference on
         
        
            Conference_Location : 
London
         
        
            Print_ISBN : 
978-1-84919-060-2