论文标题
库仑爆炸状态中激光加速的离子光束的特征
Characteristics of ion beams by laser acceleration in the Coulomb explosion regime
论文作者
论文摘要
在库仑爆炸加速度中,具有狭窄能量范围的离子束表现出薄的外壳形状,并具有一定直径。离子云具有具有不同能量的这些离子束的分层结构。在激光倾斜方向上,离子束的差异在斜射率激光器中不同。这表明激光脉冲的斑点直径越小,离子束的差异越大。另外,得出了生成的离子束和能量光谱的半径的理论公式,并且证明它们与模拟结果非常吻合。
In the Coulomb explosion acceleration regime, an ion bunch with a narrow energy range exhibits a thin shell shape with a certain diameter. The ion cloud has a layered structure of these ion bunches with different energies. The divergences of the ion bunch in the laser inclination direction and perpendicular to it are different in an oblique incidence laser. This indicates that the smaller the spot diameter of the laser pulse, the larger the divergence of the ion beam. In addition, theoretical formulas for the radius of the generated ion beam and the energy spectrum are derived, and they are shown to be in good agreement with the simulation results.