Quantitative Measurements of Wire Ablation in Tungsten X-pinches at 80 kA

被引：12

作者：

Bott, Simon C. ^{[1
]}

Haas, David M. ^{[2
]}

Eshaq, Yossof ^{[2
]}

Ueda, Utako ^{[2
]}

Lebedev, Sergey V. ^{[3
,4
]}

Chittenden, Jeremy P. ^{[3
]}

Palmer, James B. A. ^{[5
]}

Bland, Simon N. ^{[3
]}

Hall, Gareth N. ^{[3
]}

Ampleford, David J. ^{[6
]}

Beg, Farhat N. ^{[2
]}

机构：

[1] Univ Calif San Diego, Energy Res Ctr, La Jolla, CA 92093 USA

[2] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 93093 USA

[3] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Plasma Phys Grp, London SW7 2AZ, England

[4] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[5] AWE Plc, Dept Plasma Phys, Aldermaston RG7 4PR, England

[6] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2008年 / 36卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

Precursor plasma; wire ablation; X-pinch;

D O I：

10.1109/TPS.2008.2003964

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：

This paper investigates the ablation of wires in two-wire tungsten X-pinches driven by an 80-kA current over 50 us. High-resolution imaging using a Nomarski interferometer allows measurements close to the X-pinch cross point, where the ablation "flare" structure is observed to clearly develop during the drive-current rise time. Electron density profiles are recovered as a function of both distance normal to the wire and of time. Results compare favorably to the rocket model of wire ablation. In addition, the density contrast over the ablation "stream" and "gap" structure is measured and compared to similar measurements made using quantitative radiography on the I-MA 250-ns MAGPIE generator at Imperial College London, London, U.K.

引用

页码：2759 / 2764

页数：6

共 33 条

[1] Effect of the global to local magnetic field ratio on the ablation modulations on X-pinches driven by 80 kA peak current
Collins, G. W.
Marsical, D.
Haas, D. M.
Madden, R. E.
Gunasekara, K.
Kim, J.
Abarr, M. L. L.
Bott, S. C.
Chittenden, J. P.
Beg, F. N.
NEW JOURNAL OF PHYSICS, 2012, 14
[2] Study of jet formation in wire x-pinches
Beg, FN
Ross, I
Zhu, Y
Dangor, AE
Krushelnick, K
DENSE Z-PINCHES, 2006, 808 : 121 - +
[3] Dynamics of multiple-wire X-pinches
Green, J. S.
Beg, F. N.
Bland, S. N.
Collett, M.
Danbor, A. E.
Krushelnick, K.
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2008, 36 (04) : 1288 - 1289
[4] Dynamics of X-pinches on the Llampudken generator at 400kA
Suzuki, F
Mitchell, I
Gomez, J
Favre, M
Wyndham, E
DENSE Z-PINCHES, 2006, 808 : 157 - +
[5] Direct comparison of wire, foil, and hybrid X-pinches on a 200 kA, 150 ns current driver
Collins, G. W.
Valdivia, M. P.
Hansen, S. B.
Conti, F.
Carlson, L. C.
Hammer, D. A.
Elshafiey, A.
Narkis, J.
Beg, F. N.
JOURNAL OF APPLIED PHYSICS, 2021, 129 (07)
[6] X-ray emission from 125 μm diameter aluminium wire x-pinches at currents of 400 kA
Mitchell, IH
Gomez, JA
Suzuki, FA
Aliaga-Rossel, R
Chuaqui, H
Favre, M
Wyndham, E
PLASMA SOURCES SCIENCE & TECHNOLOGY, 2005, 14 (03): : 501 - 508
[7] High-resolution laser Schlieren imaging of coronal plasma evolution in 80-kA X-pinches
Bott, Simon C.
Haas, David M.
Ueda, Utako
Eshaq, Yossof
Madden, Robert
Collins, Gilbert
Beg, Farhat N.
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2008, 36 (04) : 1274 - 1275
[8] Investigation of magnetic fields in 1-MA wire arrays and X-pinches
Ivanov, Vladimir V.
Sarkisov, Germady S.
Laca, Paul J.
Sotnikov, Vladimir I.
Kantsyrev, Victor L.
Jones, Brent M.
Coverdale, Christine A.
LePell, P. David
Deeney, Christopher
Struve, Kenneth W.
Astanovitskiy, A. L.
Fedin, Dmitry A.
Le Galloudec, Bruno
Nalajala, Vidya
Shrestha, Ishor
Cowan, Thomas E.
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2006, 34 (05) : 2247 - 2255
[9] Experimental investigations of tungsten X-pinches using the QiangGuang-1 facility
Wu Jian
Wang Liang-Ping
Li Mo
Wu Gang
Qiu Meng-Tong
Yang Hai-Liang
Li Xing-Wen
Qiu Ai-Ci
ACTA PHYSICA SINICA, 2014, 63 (03)
[10] X-Ray Backlighting of Developments of X-pinches and Wire-Array Z-pinches Using an X-pinch
Zhao, Tong
Zou, Xiaobing
Wang, Xinxin
Zhao, Yongchao
Du, Yanqiang
Zhang, Ran
Liu, Rui
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2010, 38 (04) : 646 - 651

← 1 2 3 4 →