Preliminary experimental results of tungsten wire-array Z-pinches on primary test stand.

Autor: Xian-Bin Huang, Shao-Tong Zhou, Jia-Kun Dan, Xiao-Dong Ren, Kun-Lun Wang, Si-Qun Zhang, Jing Li, Qiang Xu, Hong-Chun Cai, Shu-Chao Duan, Kai Ouyang, Guang-Hua Chen, Ce Ji, Bing Wei, Shu-Ping Feng, Meng Wang, Wei-Ping Xie, Jian-Jun Deng, Xiu-Wen Zhou, Yi Yang
Předmět:
Zdroj: Physics of Plasmas; 2015, Vol. 22 Issue 7, p1-10, 10p, 3 Color Photographs, 2 Diagrams, 2 Charts, 10 Graphs
Abstrakt: The Primary Test Stand (PTS) developed at the China Academy of Engineering Physics is a 20 TW pulsed power driver, which can deliver a ~10 MA, 70 ns rise-time (10%-90%) current to a short-circuit load and has important applications in Z-pinch driven inertial confinement fusion and high energy density physics. Preliminary results of tungsten wire-array Z-pinch experiments on PTS are presented. The load geometries investigated include 15-mm-tall cylindrical single and nested arrays with diameter ranging from 13mm to 30 mm, consisting of 132-300 tungsten wires with 5-10 μm in diameter. Multiple diagnostics were fielded to characterize the x-ray radiation from wire-array Z pinches. The x-ray peak power (~50 TW) and total radiated energy (~500 kJ) were obtained from a single 20-mm-diam array with 80-ns stagnation time. The highest x-ray peak power up to 80 TW with 2.4 ns FWHM was achieved by using a nested array with 20-mm outer diameter, and the total x-ray energy from the nested array is comparable to that of single array. Implosion velocity estimated from the time-resolved image measurement exceeds 30 cm/μs. The detailed experimental results and other findings are presented and discussed. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index