^6LiD脉冲复合离子源与聚变DT等离子体的相互作用

^6LiD compound ion source interact with fusion DT plasma

分析了氘化锂与聚变DT等离子体的相互作用,采用蒙特卡罗方法计算了在密度500g/cm3、燃料半径100μm条件下的作用参数。结果表明:热斑加热的电子需要最小能量为4.65 MeV,氘离子需要的最小能量为122.83 MeV,沉积在热斑中的最大能量为34.43 MeV,锂离子最小能量为368.5 MeV;最小电流强度为1.15×107 A。电子、氘离子、锂离子在等离子体中沉积时间分别为0.07,0.49,0.64ps,均小于1ps。采用氘化锂作为加热粒子源,克服了其他单离子加热热斑的方法遇到的一些困难,是一种较好的方法。

A method was presented that a compound ion source of LiD was used to heat hot spot produced in ICF experiment.The interacting process between LiD ion and DT plasma was analysed and the heating parameter was calculated by MonteCarlo method under ICF experimental condition of 500 g/cma in density and 100 μm in diameter.The results show that the smallest incident energy is 4.65,122.83 and 368.5 MeV,respectively,and the smallest electronic current is 1.15 × 10^7 A,and the deposition time is 0.07 ps,0.49 ps and 0.64 ps for electron,deuterium ion and lithium ion,deuterium ion and lithium ion,respectively.The largest deposition energy for deuterium ion in hotspot is 34.43 MeV.Compared to the methods in present particle beam projects,the compound ion source could be better for hot spot heat.