Now we have developed the measurement system of state distribution of the electric charge with TOF method, and use the system to measure the state distribution of electric ion charge from the MEVVA source.

• 我们已经研制出了飞行时间 TOF（Time of Flight）方法电荷态分布测量系统，并用该系统测定了MEVVA（MetalV por Vacuum Arc）源产生离子的电荷态分布。