Time-resolved multi-pulsed electron beam parameters measurement technique for Dragon Ⅱ LIA

Dragon Ⅱ is a linear induction accelerator which can shoot 3 coaxial pulsed high intense current electron beams at one time. The distinguished beam parameters between electron beam pulses should be achieved at least for its multi-pulsed electron beams. The high time-resolved beam parameters inside an electron beam pulse are important. One set of complicated electron beam parameters measurement system has been specially developed recently for Dragon Ⅱ LIA. The optics layout for beam profile measurement and beam emittance measurement individually being carried out is developed from the structure of instantaneous electron beam emittance measurement system based on the optical transition radiation principle. Multi framing cameras are adopted in the system. This system features very flexible assembled measurement ability. It meets the diversified demands for very difficult debugging work and beam parameters measurement of Dragon Ⅱ LIA. The highest time-resolved ability is up to 2 ns and at least 8 results of time-resolved beam parameters inside one pulse can be obtained at one time.