In one embodiment an electrode emission source component comprises a tubular metal body (107) having first and second open ends.
在一个实施例中电极发射源元件包括具有第一和第二开口端的管状金属体(107)。
2
The source chamber is conflated four-way cross , a very simple tubular 900 electrostatic deflector and a new spring-clamp GaAs crystal mounting design to provide uniform crystal heating .