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在聚龙一号脉冲功率装置上首次完成了对带正弦扰动铝套筒Z箍缩的X射线背光照相实验。实验采用千焦耳激光器(1053nm,1kJ,1ns)驱动固体靶材产生X射线,然后利用基于球面晶体的单色背光照相技术以及直接点投影背光照相技术,成功观测到约7.5 MA电流驱动条件下,Z箍缩铝套筒的外边界不稳定性发展情况。该实验验证了在聚龙一号装置上联合千焦耳激光器开展X射线背光照相实验的能力,为后续精密Z箍缩物理研究奠定了基础。
For the first time, the X-ray backlit experiment of Z-pinch with aluminum alloy sleeve with sinusoidal disturbance was completed for the first time at Julong Pulse Power Plant. Experiments using thousands of joules laser (1053nm, 1kJ, 1ns) to drive the solid target to produce X-ray, and then use the spherical crystal-based monochromatic backlight technology and direct point projection backlight photography, successfully observed about 7.5 MA current-driven conditions, The development of instability of the outer boundary of Z-pinched aluminum sleeve. This experiment validates the joint X-ray backlit photography experiment carried out on the Julong-1 device and lays the foundation for the subsequent research on the precision Z-pinch physics.