Study of the Formation, Stability, and X-ray Emission of the Z-Pinch Formed during Implosion of Fiber Arrays at the Angara-5-1 Facility

被引：6

作者：

Aleksandrov, V. V. ^{[1
]}

Volkov, G. S. ^{[1
]}

Grabovski, E. V. ^{[1
]}

Gritsuk, A. N. ^{[1
]}

Laukhin, Ya. N. ^{[1
]}

Mitrofanov, K. N. ^{[1
]}

Oleinik, G. M. ^{[1
]}

Frolov, I. N. ^{[1
]}

Shevel'ko, A. P. ^{[2
]}

Barsuk, V. A. ^{[1
]}

机构：

[1] Troitsk Inst Innovat & Fus Res, Moscow 142190, Russia

[2] Russian Acad Sci, Lebedev Phys Inst, Moscow 119991, Russia

来源：

PLASMA PHYSICS REPORTS | 2016年 / 42卷 / 11期

基金：

俄罗斯基础研究基金会;

关键词：

SPHERICAL WIRE ARRAYS; ANISOTROPY; INCREASE; HOHLRAUM; DRIVEN; DESIGN; PLASMA; POWER;

D O I：

10.1134/S1063780X16110015

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Results from experimental studies on the implosion of arrays made of kapron fibers coated with different metals (Al, In, Sn, and Bi) are presented. It is shown that the power, total energy, and spectrum of radiation emitted by the imploding array depend on the number of metallized fibers and the mass of the metal layer deposited on them but are independent of the metal characteristics (density, atomic number, etc.). Analysis of frame X-ray images shows that the Z-pinches formed in the implosion of metallized kapron fiber arrays are more stable than those formed in wire arrays and that MHD perturbations in them develop at a slower growth rate. Due to the lower rate of plasma production from kapron fibers, the plasma formed at the periphery of the array forms a layer that plays the role of a hohlraum wall partially trapping soft X-ray emission of the Z-pinch formed in the implosion of the material of the deposited metal layer. The closure of the anode aperture doubles the energy of radiation emitted in the radial direction.

引用

页码：1024 / 1036

页数：13

共 50 条

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