MOLECULAR DYNAMIC SIMULATION OF PLASMA MATERIAL INTERACTION TOCALCULATE THEORETICAL SPUTTERING YIELD

In a fusion reaction two light nuclei, Deuterium and Tritium merge to form single heavier nucleus Helium. However, positive nuclei repel each other. order they need have very high velocities. High speed means, temperature. For the it is significant for keep at 100 million °C At this temperature D T atoms plasma. take place, plasma must be conserved or should not cooled. Tokamak reactors are designed confine in magnetic field. Thus, cooling of prevented by hitting reactor walls. Plasma density certain level initiate ensure continuity. During process, negative ions escaping from field environment interact with walls cause deformation. This causes wall deteriorate over time release neutrons environment. Plasma-Wall interaction one most important problems that interruption rectors. The materials which resistant ion corrosion graphite, beryllium, aluminium tungsten. work, plasma-material studied theoretically physical chemical erosion caused interactions different material samples (graphite, Tungsten) used investigated Monte Carlo method molecular dynamics.