Basic idea and physical models in DIVIMP are introduced and DIVIMP modelling of C impurity production and transport properties in edge plasma of EAST machine with ohmic heating are provided. Simulation results show favorable consistency with experimental measurements, demonstrating that the models coupled in DIVIMP are suitable for interpretive and predictive modelling of impurity transport in EAST machine. Transport properties of W impurity in EAST with heating power as high as 8MW are also predicted by DIVIMP modelling.

Solving dynamics equations of plasma in fusion-fission hybrid reactor core is performed by using Runge-kutta method.Taking different step-length at different time segment is used through computation which can ensure the solution accuracy and save CPU time. There obtained solution curves fully display burning process of plasma in reactor core. In addition, value feedack control method applies to optimization and control of solution curves.

This paper simulates desorption phenomenon of atom-state chemisorbed gas on solid suface by low-energy ions bombardment based on collision theory of winters sigmund. In the simulation, line relevance between induced gas atom gields Y by ions and coverge density θ of gas atom on solid suface is obtained, on the basis of line relevance, ion induction desorption cross section σ is obtained rapidly.