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Title: The Physics of Fast Z Pinches

Abstract

The spectacular progress made during the last few years in reaching high energy densities in fast implosions of annular current sheaths (fast Z pinches) opens new possibilities for a broad spectrum of experiments, from x-ray generation to controlled thermonuclear fusion and astrophysics. Presently Z pinches are the most intense laboratory X ray sources (1.8 MJ in 5 ns from a volume 2 mm in diameter and 2 cm tall). Powers in excess of 200 TW have been obtained. This warrants summarizing the present knowledge of physics that governs the behavior of radiating current-carrying plasma in fast Z pinches. This survey covers essentially all aspects of the physics of fast Z pinches: initiation, instabilities of the early stage, magnetic Rayleigh-Taylor instability in the implosion phase, formation of a transient quasi-equilibrium near the stagnation point, and rebound. Considerable attention is paid to the analysis of hydrodynamic instabilities governing the implosion symmetry. Possible ways of mitigating these instabilities are discussed. Non-magnetohydrodynamic effects (anomalous resistivity, generation of particle beams, etc.) are summarized. Various applications of fast Z pinches are briefly described. Scaling laws governing development of more powerful Z pinches are presented. The survey contains 36 figures and more than 300 references.

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
14113
Report Number(s):
SAND98-1632J
TRN: AH200136%%377
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article
Journal Name:
Review of Modern Physics
Additional Journal Information:
Other Information: Submitted to Review of Modern Physics; PBD: 25 Oct 1999
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ASTROPHYSICS; HYDRODYNAMICS; IMPLOSIONS; PARTICLE BEAMS; PHYSICS; RAYLEIGH-TAYLOR INSTABILITY; SCALING LAWS; STAGNATION POINT; SYMMETRY; TRANSIENTS; X-RAY SOURCES

Citation Formats

RYUTOV, D D, DERZON, MARK S, and MATZEN, M KEITH. The Physics of Fast Z Pinches. United States: N. p., 1999. Web.
RYUTOV, D D, DERZON, MARK S, & MATZEN, M KEITH. The Physics of Fast Z Pinches. United States.
RYUTOV, D D, DERZON, MARK S, and MATZEN, M KEITH. Mon . "The Physics of Fast Z Pinches". United States. https://www.osti.gov/servlets/purl/14113.
@article{osti_14113,
title = {The Physics of Fast Z Pinches},
author = {RYUTOV, D D and DERZON, MARK S and MATZEN, M KEITH},
abstractNote = {The spectacular progress made during the last few years in reaching high energy densities in fast implosions of annular current sheaths (fast Z pinches) opens new possibilities for a broad spectrum of experiments, from x-ray generation to controlled thermonuclear fusion and astrophysics. Presently Z pinches are the most intense laboratory X ray sources (1.8 MJ in 5 ns from a volume 2 mm in diameter and 2 cm tall). Powers in excess of 200 TW have been obtained. This warrants summarizing the present knowledge of physics that governs the behavior of radiating current-carrying plasma in fast Z pinches. This survey covers essentially all aspects of the physics of fast Z pinches: initiation, instabilities of the early stage, magnetic Rayleigh-Taylor instability in the implosion phase, formation of a transient quasi-equilibrium near the stagnation point, and rebound. Considerable attention is paid to the analysis of hydrodynamic instabilities governing the implosion symmetry. Possible ways of mitigating these instabilities are discussed. Non-magnetohydrodynamic effects (anomalous resistivity, generation of particle beams, etc.) are summarized. Various applications of fast Z pinches are briefly described. Scaling laws governing development of more powerful Z pinches are presented. The survey contains 36 figures and more than 300 references.},
doi = {},
url = {https://www.osti.gov/biblio/14113}, journal = {Review of Modern Physics},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {10}
}