Operation analysis and maintenance of Flash-Ⅱ accelerator

Some common operation failures are introduced for Marx generator, water dielectric transmission line, diode during the running of the Flash-Ⅱ accelerator. The 200 kV gas switch in Marx generator, the 3 MV main switch and the pre-pulse switch in transmission line, the cathode surface electric field and the gap between cathode and anode are key factors for the common failures. Some maintenance methods and precautions are introduced accordingly to realize stable operation of the accelerator.