Plasma Diagnostics at the Angara-5-1 Facility

Volkov, G. S.; Grabovskiĭ, E. V.; Zaĭtsev, V. I.; Zukakishvili, G. G.; Zurin, M. V.; Mitrofanov, K. N.; Nedoseev, S. L.; Oleĭnik, G. M.; Porofeev, I. Yu.; Smirnov, V. P.; Frolov, I. N.

doi:10.1023/b:inet.0000025202.65725.c5

Cited by 28 publications

(11 citation statements)

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“…The experiments were performed at Z-pinch currents of 3-4 MA. The process of liner compression is shown in figure 1, where a time streak image of the liner luminosity is given [4]. As seen, at the moment of maximum compression the plasma column diameter is 1-2 mm.…”

Section: Z-pinch Experiments and Decay Productsmentioning

confidence: 97%

High-current Z-pinch disintegration and the problem of peripheral equipment protection

Zaĭtsev¹,

Andryanov²,

Volkov³

et al. 2008

Plasma Devices and Operations

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Section: Z-pinch Experiments and Decay Productsmentioning

confidence: 97%

High-current Z-pinch disintegration and the problem of peripheral equipment protection

Zaĭtsev¹,

Andryanov²,

Volkov³

et al. 2008

Plasma Devices and Operations

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“…The X pinch radiation pulse was detected by means of an SPPD11 04 p-i-n diode developed and pro duced by the Dukhov All Russia Research Institute of Automatics (Moscow). This diode was located behind the 20 µm thick titanium filter, which guaranteed the maximum detector sensitivity in the X ray energy range of 4-5 keV [1,3]. The detector was placed behind the X pinch in the diametrical direction from the multiwire array and adjusted so as to reduce the fraction of Z pinch radiation incident on it.…”

Section: Operation Of the Sxpd With The X Pinch Technique Testing Xmentioning

confidence: 99%

“…Among the objects of investigations being in the greatest demand today are multiwire arrays for producing a high power soft X ray source with hν > 100 eV, which shows good prospects for implementing inertial controlled nuclear fusion [1][2][3][4][5]; spherical tar gets used in laser nuclear fusion facilities [6][7][8][9][10], and electrically exploding conductors and foils [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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A synchronized X-pinch driver

et al. 2014

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The efficiency of the X ray point projection radiography technique has been demonstrated on a terawatt pulse power generator using a detached compact current generator driving an X pinch load. This technique has been approved in an experiment on the multiwire array implosion performed at the Angara 5 1 generator with a peak power as high as 6 TW. The advantage of this experiment over earlier experiments on terawatt generators is in the use of a separate X pinch driver, which makes it possible to arbitrarily vary the sample probing time. The X pinch driver is connected to the load unit by means of a flexible low inductance transmission line. The flexibility of the transmission line is an additional advantage of this technique, since it allows the accuracy of the X ray radiography system adjustment to be improved and the X pinch to be located near the plasma load. When compared to the laser method for producing a probe radiation source, the pro posed technique features a smaller size, a lower cost of the facility, the absence of high price optical elements, and a higher efficiency of X ray generation. Owing to the small size of the synchronized X pinch driver, it can be transported for use in experiments performed at other research organizations.

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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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Plasma Diagnostics at the Angara-5-1 Facility

Cited by 28 publications

References 1 publication

High-current Z-pinch disintegration and the problem of peripheral equipment protection

High-current Z-pinch disintegration and the problem of peripheral equipment protection

A synchronized X-pinch driver

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

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