Title : 
High-perveance convergent electron guns with grids
         
        
            Author : 
Asaba, T. ; Shimada, Toshikazu
         
        
        
        
        
            fDate : 
6/1/1968 12:00:00 AM
         
        
        
        
            Keywords : 
Breakdown voltage; Contracts; Electric breakdown; Electrodes; Electron beams; Electron guns; Electron tubes; Electrostatics; Laboratories; Vacuum breakdown;
         
        
        
            Journal_Title : 
Electron Devices, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/T-ED.1968.16325