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首页> 外文会议>International conference on advanced diagnostics for magnetic and inertial fusion >THERMAL SOFT X-RAYS INTERACTION WITH FOAM LAYERED GOLD TARGETS
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THERMAL SOFT X-RAYS INTERACTION WITH FOAM LAYERED GOLD TARGETS

机译：热软X射线与泡沫层状金靶相互作用

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The purpose of the experiment presented in this paper was to study the effect of low density foams on the generation of shocks driven by thermal soft X-rays because of their applications in Inertial Confinement Fusion (ICF)~(1-4). Experiments were performed at MPQ, Garching using Asterix laser energy up to 400 J at 0.44 μm (3ω of Iodine laser) in ≈ 450 ps (FWHM). A conical shaped shield was constructed inside the Labyrinth cavity so that the laser irradiated area and the shocked material are not in direct view of each other (Fig. 1). Cavity surface area was equivalent to a sphere surface area of radius 0.5 mm. Target specifications are, 1) Aluminium base of thickness 16.95 μm with Al step of thickness 6.23 μm. 2) gold base of thickness 4.96 μm with a 1.95 μm gold step. The front surface of the gold foil was layered with low density foam (TMPTA-trimethylol propane triacrylate, C_(15)H_(20)O_6) of 50 μm thickness, ρ =20 mg/cc, and also 50, 100 and 150 μrn thick with ρ = 50 mg/cc). The areal densities were d = 0.1, 0.25, 0.5 and 0.75 mg/cm~2 respectively. A visible streak camera recorded the shock breakout signal.
机译：本文提出的实验的目的是研究低密度泡沫对热软X射线驱动的冲击产生的影响，因为它们在惯性限制融合（ICF）〜（1-4）中的应用。在MPQ下进行实验，在≈450ps（fwhm）中，使用七架激光能量在0.44μm（3Ω碘激光）下的Asterix激光能量加入400 j。在迷宫腔内构造圆锥形屏蔽，使得激光照射区域和震动材料不在彼此直接观察（图1）。腔表面区域相当于半径为0.5mm的球形面积。目标规格是1）厚度为16.95μm的铝基厚度厚度为6.23μm。 2）金底座4.96μm，金步骤1.95μm。金箔的前表面用低密度泡沫（TMPTA-三羟甲基丙烷三丙烷，C_（15）H_（20）O_6）为50μm厚度，ρ= 20mg / cc，以及50,100和150μrn厚ρ= 50mg / cc）。面部密度分别为d = 0.1,0.25,0.5和0.75mg / cm〜2。一个可见的条纹摄像机记录了震荡断裂信号。

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