“聚龙一号”丝阵实验轴向一维X光辐射功率分布

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Axial 1-D X-ray power distribution of wire-array implosions on JL-Ⅰ

1.
Institute of Nuclear Physics and Chemistry,CAEP,P.O.Box 919-212,Mianyang 621900,China

摘要: 通过一维条纹相机诊断系统对聚龙一号(JL-Ⅰ)四类单层丝阵负载进行了轴向X光辐射测量。由于瑞利-泰勒不稳定性的影响，大部分负载表现出两端发光比中间滞后、阳极端发光比阴极端滞后、阳极端发光总强度弱于阴极端的现象。通过不同类型丝阵对比，对于20 mm直径的丝阵，JL-Ⅰ驱动器的匹配负载线质量在0.9 mg/cm附近。轴向辐射同步性与辐射功率之间存在相关性。
- Z箍缩 /
- 一维条纹像 /
- 丝阵X光辐射 /
- 轴向同步性
Abstract: Axial X-ray radiations of four types of wire-arrays were diagnosed via 1-D streak camera system on JL-Ⅰ. Because of the influence of Rayleigh-Taylor instability, wire-arrays mostly had the behavior that X-ray rose up later near both cathode and anode than that of the middle, X-ray near anode rose up later than that of cathode and the intensity of X-ray close to anode seemed weaker than that of cathode. With the comparison of different types of wire-arrays, the optimized mass per unit length of a 20 mm diameter wire-array on JL-Ⅰ was about 0.9 mg/cm. Further, there was a correlation between axial radiation synchronization and radiation power.
- Z-pinch /
- 1-D streak image /
- wire-array X-ray radiation /
- axial synchronization

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