Simulation of the Ablation by Charged Particles for Laser Fusion Reactor Wall
Simulation of the Ablation by Charged Particles for Laser Fusion Reactor Wall
复制标题
激光聚变反应堆壁带电粒子烧蚀模拟
DOI：
10.1016/j.jnucmat.2015.01.005
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发表时间：
2015
影响因子：
3.1
通讯作者：
and K. A. Tanaka
中科院分区：
文献类型：
--
作者：
K. Takaki;K. Kageyama;A. Sunahara;T. Yabuuchi;and K. A. Tanaka
在激光聚变反应堆中，带电粒子加热材料的热反应可能导致严重的破坏。当带电粒子以109 W/cm 2以上的高强度照射并加热壁材料时，材料可以被烧蚀。一旦壁被烧蚀，如果其停滞足够长的时间以进行下一激光射击，则膨胀的气体或等离子体可以干扰照射燃料靶的激光的传播。为了详细了解烧蚀动力学，我们进行了1-D水力模拟来评估这种烧蚀。作为一个新的特点，我们介绍了能量沉积的计算由带电粒子聚焦烧蚀材料和带电粒子之间的相互作用。
Thermal reactions of materials heated by charged particles may lead to serious damage in a laser fusion reactor. When charged particles irradiate and heat the wall material with high intensity like at above 109W/cm2, the material can be ablated. Once the wall is ablated, expanding gas or plasma can disturb the propagation of laser light irradiating the fuel target if it stagnates long enough for next laser shot. In order to understand the ablation dynamics in detail, we have performed 1-D hydro simulation to evaluate this ablation. As a new feature, we introduce the calculation of energy deposition by charged particles focusing on the interaction between ablated material and charged particles.