Open AccessExperimental studies of Z-pinches of mixed wire array with aluminum and tungsten
Author(s) -
Ning Cheng,
Zhenghong Li,
Xinsheng Hua,
Rongkun Xu,
Xianjue Peng,
Zengguang Xu,
Jing Yang,
Caili Guo,
Jiang Shilun,
Feng Shi,
Libing Yang,
Yan Cheng-Li,
Song Fengjun,
V. P. Smirnov,
Yu. G. Kalinin,
A. S. Kingsep,
А. С. Черненко,
E. V. Grabovsky
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.2244
Subject(s) - z pinch , physics , optics , full width at half maximum , wavelength , pinch , plasma , tungsten , atomic physics , materials science , radiation , metallurgy , quantum mechanics , nuclear physics
In the form of joint experiment between China and Russia, the experimental studies of Zpinches of mixed wire array of aluminum (A1) and tungsten (W) were carried out on S-300 generator,which was located on Kurchatov Institute of Russia. The experimental results were compared with those of single A1 array and single W array, respectively. There are obvious difference between mixed one and single one in their photon spectral distributions. The intensity of K-series emission lines from the mixed wire array Z-pinch is lower than that from single A1 array. The radiated lines with wavelengths less than 1.6nm were not found in single W array Z-pinches. In the Z-pinch processes, the area radiating x-arys in mixed wire array is smaller than that of single A1 array, but is larger than that of single W array. The radiated energy from mixed wire array Z-pinch is higher than that from single A1 array, but is slightly lower than that from single W array. The FWHM of x-ray pulse with a maximal power 0.3—0.5TW and total energy 10—20kJ is about 25ns, which radiated from Z-pinches with a radial convergence of 4—5 on S-300 generator. The shadow photograph of the mixed wire-array Z-pinch plasma by laser probe shows that the core-corona configuration was formed and the corona was moving toward the center axis during the wire-array plasma formation, that the interface of the plasma is not clear, and that therer are a number of structures inside. They also suggests that there was an obvious development of Magneto Rayleigh-Taylor instability in the Z-pinch process as well.