以聚龙一号装置为驱动源,分别结合理论计算和电路模拟,开展了磁驱动平面加载实验设计和样品加载路径控制,实现了高电导率无氧铜(OFHC)材料的准等熵压缩。实验中采用现有的波剖面测量实验技术成功测量了两个不同厚度OFHC样品/LiF窗口材料的界面速度历史,再结合Lagrange分析和反积分计算,成功获取了铜直到100 GPa的准等熵压缩参考线,与国外公布的SESAME数据线符合较好。

Based on PTS accelerator, combined with theoretical calculation and circuit simulation, magnetic driven loading experiments design method and sample loading path control techniques were developed and improved. With the excellent output characteristics of the platform PTS, quasi-isentropic compression of oxygen-free high-conductivity copper(OFHC) was realized. In these experiments, with the existing wave profile measuring technique, we measured the interface velocity history of two different thickness OFHC samples/LiF window material successfully. Combined with the Lagrange analysis and inverse integral method, we have successfully acquired the quasi-isentropic compression reference line of copper up to 100 GPa, which agrees well with that in SESAME dataset.