强激光斜入射半腔靶能量注入率测量
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摘要: 在星光II单束激光条件下，通过新的方法、用热释电能量卡计和scientech378能量卡计测量了1.053 μm激光45°斜入射半腔靶及孔靶激光能量注入率，并估计了斜入射条件下的等离子体堵口速度。实验结果表明：相同参数条件下半腔靶与孔靶相比，激光能量注入率减少约10%。Abstract: At the “Xingguang II” facility under the condition of single-beam laser slanting incidence into a half-cavity target, the energy injection efficiencies for the half-cavity target and the hole target have been measured through a new experimental method. Closure velocities of injection hole under the condition of laser slanting incidence have been estimated. The experimental results show that under the same conditions the laser energy injection efficiencies for half-cavity targets are 10 percent lower than those for hole targets.
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