Figure 8. Temperature variation curve of simulation system under the action of positive and negative high-energy parti- Figure 8. Temperature variation curve of simulation system under the action of positive and negative high-energy particles. cles. ( a ) Temperature variation curve of simulation system under the action of positive high-energy particles; ( b ) Temper- ( a ) Temperature variation curve of simulation system under the action of positive high-energy particles; ( b ) Temperature ature variation curve of simulation system under the action of negative high-energy particles. variation curve of simulation system under the action of negative high-energy