Plasma refers to the multi-particle system that consist of charged particles in an unbound status, it is one of the basic forms of the material existence in nature. The vast majority of substances can be ionized into plasma under the greatly intensive laser, which exceeds to 1014W / cm2. Plasma accelerator is particle accelerator, which is not only a man-made device for generating the high-speed plasma, but also the basic tools of physics research for high-speed particle physics and nuclear physics. Plasma accelerator can generate a variety of high-energy particles and multiband radiation which increases 1000 times than the conventional metal wall accelerator and can be applied to the fields of high-energy physics, materials science, medicine, biology and chemistry etc.

 

However, plasma accelerator will generate a greater radiation problem when it works. As we all know that the prolonged and large doses radiation can do great harms to human beings even lead to death, therefore, the works there should be protected from the radiation harms, so it’s necessary to shield the plasma accelerator. It’s well known that high density materials have a high radiation shielding capability, since the tungsten alloy has high density property so it has been widely used in various fields. Thus, it’s very suitable for tungsten alloy material to produce the plasma accelerator shielding, which can well absorb the radiation of plasma accelerator in operation and ensure the safety of the staffs.