Methods and results of studies of the radiation spectra of megampere Z-pinches at the angara-5-1 facility

被引：11

作者：

Boldarev, A. S. ^{[1
]}

Bolkhovitinov, E. A. ^{[2
]}

Vichev, I. Yu ^{[1
]}

Volkov, G. S. ^{[3
]}

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

Grabovskii, E. V. ^{[3
]}

Gritsuk, A. N. ^{[3
]}

Dan'ko, S. A. ^{[4
]}

Zaitsev, V. I. ^{[3
]}

Novikov, V. G. ^{[1
]}

Oleinik, G. M. ^{[3
]}

Ol'khovskaya, O. G. ^{[1
]}

Rupasov, A. A. ^{[2
]}

Fedulov, M. V. ^{[3
]}

Shikanov, A. S. ^{[2
]}

机构：

[1] Russian Acad Sci, MV Keldysh Appl Math Inst, Moscow 125047, Russia

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

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

[4] IV Kurchatov Atom Energy Inst, Natl Res Ctr, Moscow 123182, Russia

来源：

PLASMA PHYSICS REPORTS | 2015年 / 41卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

WIRE ARRAYS; IMPLOSION;

D O I：

10.1134/S1063780X14120010

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：

Methods and results of studies of the radiation spectra of high-current Z-pinches with different elemental compositions are presented. To examine a wide spectral range (E (h nu) = 30-3000 eV), two diagnostics tools were used-a transmission grating and a reflecting mica crystal. The radiation characteristics of the pinch are determined by its elemental composition. For currents of 2-3 MA and low-Z elements (aluminum), the hard end of the radiation spectrum is represented by spectral lines with clearly pronounced K lines, while for high-Z elements (tungsten), the spectrum lies in the softer photon energy range and is quasi-continuous. Two methods of spectrum processing were used to determine the plasma parameters. The parameters of aluminum plasma were traditionally determined from the intensity ratios of the K lines taking into account the plasma transparency for these lines. The spectra of tungsten plasma were compared with the results of computer simulations of pinch compression with allowance for both magnetohydrodynamic and plasma radiation processes. The applicability of these methods of spectral analysis is discussed.

引用

页码：178 / 181

页数：4

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