Z-pinch - définition. Qu'est-ce que Z-pinch
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Qu'est-ce (qui) est Z-pinch - définition


Z-pinch         
  • An early photograph of the kink instability in a toroidal pinch – the 3 by 25 pyrex tube at Aldermaston.
  • A Z-pinch machine at UAM, Mexico City.
  • A desktop-sized inductively coupled current-driven toroidal Z-pinch in a krypton plasma showing an intense glow from a plasma filament.
TYPE OF PLASMA CONFINEMENT SYSTEM THAT USES AN ELECTRICAL CURRENT IN THE PLASMA TO GENERATE A MAGNETIC FIELD THAT COMPRESSES IT
Z-Pinch; Z pinch; Zeta pinch
In fusion power research, the Z-pinch (zeta pinch) is a type of plasma confinement system that uses an electric current in the plasma to generate a magnetic field that compresses it (see pinch). These systems were originally referred to simply as pinch or Bennett pinch (after Willard Harrison Bennett), but the introduction of the θ-pinch (theta pinch) concept led to the need for clearer, more precise terminology.
Pinch (unit)         
AMOUNT THAT CAN BE TAKEN BETWEEN THE THUMB AND FOREFINGER
Pinch (measurement); Pinch (cooking)
A pinch is a small, indefinite amount of a substance, typically a powder like salt, sugar, spice, or snuff.Oxford English Dictionary s.
Pinch (plasma physics)         
  • pulsed]] magnetic field created by rapidly discharging 2 kilojoules from a high voltage [[capacitor]] bank into a 3-turn coil of heavy gauge wire.
  • The Bennett pinch showing the total current (I) versus the number of particles per unit length (N). The chart illustrates four physically distinct regions. The plasma temperature is 20 K, the mean particle mass 3×10<sup>−27</sup> kg, and ΔW<sub>Bz</sub> is the excess magnetic energy per unit length due to the axial magnetic field B<sub>z</sub>. The plasma is assumed to be non-rotational, and the kinetic pressure at the edges is much smaller than inside.
  • The generalized Bennett relation considers a current-carrying magnetic-field-aligned cylindrical plasma pinch undergoing rotation at angular frequency ω
  • Model of the kink modes that form inside a pinch
  • The MagLIF concept, a combination of a Z-pinch and a laser beam
  • This is a basic explanation of how a pinch works. ('''1''') Pinches apply a high voltage and current across a tube. This tube is filled with a gas, typically a fusion fuel such as deuterium. If the product of the voltage & the charge is higher than the ionization energy of the gas the gas ionizes. ('''2''') Current jumps across this gap. ('''3''') The current makes a magnetic field which is perpendicular to the current. This magnetic field pulls the material together. ('''4''') These atoms can get close enough to fuse.
COMPRESSION OF AN ELECTRICALLY CONDUCTING FILAMENT BY MAGNETIC FORCES
Bennett pinch; Electromagnetic pinch; Magnetic pinch; Pinch effect; Plasma pinch; Bennett Relation; Generalized Bennett Relation; Carlqvist Relation; Bennett Pinch; Pinch (magnetic fusion); MHD equilibrium; Mhd equilibrium; Electromagnetic pinch effect; Magnetic pinch effect; Plasma pinch effect; Bennett's Relation; Pinch Effect
A pinch (or: Bennett pinch LOC 60-12766. (after Willard Harrison Bennett), electromagnetic pinch, magnetic pinch, pinch effect, or plasma pinch.