Neutron imaging of ICF target plasmas (invited)
Neutron imaging of ICF target plasmas (invited)
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DOI：
10.1063/1.1534931
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发表时间：
2003-03
影响因子：
1.6
通讯作者：
L. Disdier;A. Rouyer;A. Fedotoff;J. Bourgade;F. Marshall;V. Glebov;C. Stoeckl
中科院分区：
文献类型：
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作者：
L. Disdier;A. Rouyer;A. Fedotoff;J. Bourgade;F. Marshall;V. Glebov;C. Stoeckl
用双锥孔半影技术获得了空间分辨率为20 μm的中子像。在Omega激光器上，直径为18.9 μ m的DT填充CH微球的内爆产生了半高宽为40和80 μm的不对称图像。图像大小和形状与相同胶囊的4-7 keV X射线图像非常一致。与我们以前的测量相比，改进的分辨率来自更长的视线（13与8米）和通过用高光学指数闪烁体填充玻璃毛细管阵列获得的新中子探测器。
Using a penumbral technique with a biconical aperture we have obtained neutron images with a spatial resolution of 20 μm. Implosions of DT filled CH microballons of ∼932 μm diameter at the Omega laser produced asymmetric images with full width at half maximum of 40 and 80 μm for 18.9 μm thick CH shells. Image sizes and shapes are in good agreement with the 4–7 keV x-ray images of the same capsule. The improved resolution compared to our previous measurements arises from a longer line-of-sight (13 vs 8 m) and a new neutron detector obtained by filling an array of glass capillaries with a high optical index scintillator.