Mass focusing and particle trajectories of particle beam in orthogonal electromagnetic field

The particle trajectory varies exponentially at turning points in orthogonal electromagnetic field, causing the obvious difference of variety mass ion trajectories. So a new nuclides electromagnetic separation method can be created. From the Newton motion equation and based on the single particle track method, the article discusses the movement law of nuclide separated in orthogonal electromagnetic field and focuses on finding the turning point of the trajectories. The mass focusing characteristics of the multi-mass beam flowing in the orthogonal electromagnetic field are given. As an example, the particle trajectories of Li ion are simulated by MATLAB. The result shows the possibility of the mass separation for the multi-mass particle beam in the orthogonal electromagnetic field. According to the characteristics of the trajectory equation, the particles moving along a circular trajectory are summarized. Parameters such as space dimension for the engineering realization of multi-mass particle beam separation structure are provided. The research result can be applied to the development of some devices, such as the mass separator, the spectrum analyzer and the materials purification device. At the same time, it has certain reference significance for the related fields research of the special configuration electromagnetic field controlling multi-mass beam flow.