Aluminum and tungsten X-pinch experiments on 100 kA, 100 ns linear transformer driver stage

Wu, Jian; Sun, Tao; Wu, Gang; Wang, Liangping; Han, J. J.; Li, Mo; Cong, Peitian; Qiu, Aici; Lv, Min

doi:10.1063/1.3587065

Cited by 13 publications

(2 citation statements)

References 14 publications

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“…Recently, LTD-based generators specially intended for Х-pinch experiments and having good prospects for practical applications began to be developed [71]. The project of a generator having parallel forming lines made of standard high-voltage ceramic capacitors and possessing satisfactory parameters also seems to be interesting.…”

Section: Current Generators Used For х-Pinch Experimentsmentioning

confidence: 99%

X-pinch. Part I

2015

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Results of experimental studies of the Х-pinch since its invention and implementation in 1982 at the Lebedev Physical Institute are presented. The concept of the Х-pinch arose in the course of innovative experiments on studying the generation of hot dense plasma in nanosecond Z-pinches. The main idea was to localize the region occupied by the plasma and stabilize the moment of its formation. This was achieved by using a load in the form of crossed wires. The resulting plasma object turned out to be so interesting that a new scientific direction appeared in plasma physics. At present, studies in this direction are being performed in many laboratories worldwide. The term Х-pinch became conventional, and sections devoted to its study are always present at plasma conferences. Х-pinch is not only a very interesting scientific object, but also a unique source of X-ray emission with extreme parameters. The use of Х-pinches for point-projection X-ray radiography of high-energy-density objects provided many new experimental results. In some cases, the concepts of the processes occurring in matter upon fast energy deposition changed dramatically. The review consists of two parts. The first part briefly outlines the history of creation and studies of Х-pinches, describes the diagnostic techniques and devices developed during these studies, and presents the main results obtained in studying the physical processes occurring in the Х-pinch. The second part is devoted to the results of detailed studies of the Х-pinch hot spot-the region where the highest plasma parameters are achieved and which is a source of X-ray emission with extreme parameters. Some results of Х-pinch simulations are also presented.

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Section: Current Generators Used For х-Pinch Experimentsmentioning

confidence: 99%

X-pinch. Part I

2015

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“…4 X-pinches are very interesting for the dense plasma physics, 5 plasma diagnostics, and biological radiography. 6,7 The X-pinch point radiography has been developed to diagnose wire-array Z-pinches on the XP, 8 MAGPIE, 9 Angara-5-1, 10 COBRA, 11 PPG-1, 12 and QiangGuang-1 facilities. 13 A wire-array load is commonly installed on the central electrode, and one or more X-pinches are placed instead of the current-return rods to provide short intense x-ray pulses at different times.…”

Section: Introductionmentioning

confidence: 99%

X-pinch radiography for the radiation suppressed tungsten and aluminum planar wire array

Wang

Han

et al. 2012

Physics of Plasmas

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X-pinch radiography experiments were carried out on the 1 MA QiangGuang-1 facility to investigate the wire core behaviors of the tungsten and aluminum planar wire array. An axial quencher and over-massed loads were used to suppress keV radiation from the planar wire array. Two-wire 30 lm Mo and/or 25 lm W X-pinches were used as backlighters. The x-ray point-projection images showed quite uneven characteristics of the dense wire cores and the current distribution in the linear array. For the W single planar wire array (SPWA), Wire core diameter profiles are likely to reveal that the initial current distributed inductively among the wires with the same diameter in the array, and both inductively and resistively among the wires with different diameters. For the Al SPWA, wires in different positions were in quite different ablation processes. No correlations of stratifications or plasma jets between adjacent wires were observed.

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