Experimental Research on Pinhole-Assisted Point Projection Diagnostic Scheme

Jiaqin, 董佳钦 Dong; Sizu, 傅思祖 Fu; Jun, 熊俊 Xiong; Ruirong, 王瑞荣 Wang; Xiuguang, 黄秀光 Huang; Hua, 舒桦 Shu; Yuan, 顾援 Gu; Zhanshan, 王占山 Wang

doi:10.3788/aos20082803.0604

Cited by 4 publications

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“…The target was driven by the 'SG II' laser facility, which has a measured energy of 1.5 kJ in a 2.4 ns pulse at a laser wavelength λ = 0.53 µm; the diameter of the beam spot was about 700 µm. Figure 1 shows the schematic of the experimental equipment [17,18].…”

Section: Design Of the Ch/crf Dual-layer Perturbation Targetmentioning

confidence: 99%

Design and fabrication of a CH/CRF dual-layer perturbation target for ICF hydrodynamic experiments

Zhu¹,

Zhou²,

Zhong³

et al. 2011

Nucl. Fusion

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A polystyrene (CH)/carbonized resorcinol formaldehyde (CRF) dual-layer perturbation target for inertial confinement fusion hydrodynamic instability experiments was designed and fabricated. The target was composed of a perturbed CRF aerogel sheet and a CH layer. The detailed fabrication method consisted of three steps. The CRF aerogel sheet was first prepared by sol–gel and carbonization processes; the perturbation patterns were then introduced on the surface of the CRF aerogel sheet by a laser micro-machining process; finally, the CH layer was directly coated on the perturbation surface by a spin-coating process not only to avoid the use of a sticker but also to eliminate the gaps between the CH layer and the CRF aerogel sheet. A scanning electron microscope was used to investigate the surface morphology and microstructure of the CRF aerogel sheet. The parameters of the target, such as the perturbation period (T), perturbation amplitude (A), thickness of the CRF aerogel sheet (H 1) and thickness of the CH layer (H 2), were characterized by a QC-5000 tool microscope. The cross-sectional photographs of the target showed that the CH layer and the CRF aerogel sheet adhered perfectly with each other. The influence of the laser micro-machining process on the microstructure of the CRF aerogel sheet was studied. T and A of the target were about 100 µm and 20 µm while H 1 and H 2 were about 250 µm and 30 µm, respectively. The total thickness and width of the target were about 260 µm and 250 µm, respectively.

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Section: Design Of the Ch/crf Dual-layer Perturbation Targetmentioning

confidence: 99%