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PTS装置Z箍缩负载设计分析
  • 期刊名称：物理学报 57(5), 3027~3037 (2008).
  • 时间：0
  • 分类：TL63[核科学技术—核技术及应用] TP368.1[自动化与计算机技术—计算机系统结构;自动化与计算机技术—计算机科学与技术]
  • 作者机构：[1]北京应用物理与计算数学研究所,北京100088
  • 相关基金：国家自然科学基金（批准号：10575014,10635050,10775021）和国防基础科研项目（批准号：A1520070074）资助的课题.
  • 相关项目：金属丝阵负载Z箍缩内爆等离子体的磁瑞利－泰勒不稳定性研究
关键词： PTS装置, Z箍缩丝阵负载, 零维薄壳模型, 一维辐射磁流体力学数值模拟, PTS facility, Z-pinch wire-array load, shell model, MHD simulation
中文摘要：

介绍了PTS装置丝阵负载设计思路,用简化的薄壳模型（零维）和辐射磁流体力学模型（一维）数值模拟了丝阵Z箍缩内爆过程,给出了PTS丝阵负载设计参数,分析了初步优化结果,确定了优化选择的箍缩常数.经脉冲功率驱动器与负载优化匹配设计,PTS实验平台能够获得100TW量级的X射线功率,最佳插头能量转换效率10%.预计PTS实验平台的X射线输出能力基本达到Saturn装置长脉冲模式放电的水平.结果将为PTS开展Z箍缩研究提供有价值的参考.

英文摘要：

In this paper, a method for designing and optimizing the wire-array loads used on the PTS facility is presented. Both ZP-0D code （shell model） and MARED-1D code （MHD model） are used for the simulation. By comparing results from each code,the characteristics of the Z-pinch implosion plasma driven by the PTS facility are investigated, and the load parameters are optimized. It is found that, a 15 nH concentrator inductance is efficient for PTS facility to work at load currents up to 10 MA. And an optimized tungsten wire-array load is able to produce an X-ray radiation with peak power up to 100 TW and a highest efficiency of conversion for the wall-plug power of about 10% . By further investigation and comparison with experimental data, we suppose that the PTS facility will have similar X-ray radiation productivity as the Saturn facility operating in the long-pulse mode.

同期刊论文项目
Z箍缩外围电晕等离子体的动力学特征及其分流机制和规律的研究
期刊论文 22
快Z箍缩等离子体物理特性研究
期刊论文 66
金属丝阵负载Z箍缩内爆等离子体的磁瑞利－泰勒不稳定性研究
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