Description  Claims  Drawing  Cited references 

JP64338358B   [0006] 
JP05295229B   [0006] 
US20040262531A   [0006]  [0007] 

Wideband detector for microampere low-energy electron currents   [0002] 
The effect of the first dynode's geometry on the detection efficiency of 119EM electron multiplier used as a highly charged ion detector   [0008]