Primary detector is the charge collector, i.e. Faraday cup to measure fly off velocity of the ion by time of flight method. It is simple and applied set up,When it irradiates on the solid plane targets that laser beam of high power is focused, a thin layer of the high temperature and tight density plasma is produced on the target surface. As this plasma expands in the vacuum, it has of its energy in from of directed kinetic energy of the ion. The ion current signals observed by the charge collector at a large distance will correspond to high Primary detector is the charge collector, ie Faraday cup to measure fly off velocity of the ion by time of flight method. It is simple and applied set up, When it irradiates on the solid plane targets that laser beam of high power is focused, a thin layer of the high temperature and tight density plasma is produced on the target surface. As this plasma expands in the vacuum, it has of its energy in from of directed kinetic energy of the ion. a large distance will correspond to high