2015
DOI: 10.1109/tps.2015.2453265
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Characterizing the Plasmas of Dense $Z$ -Pinches

Abstract: This mini-tutorial summarizes the plasma characteristics important for the Z-pinch research, with an emphasis on high-density collisional plasmas. It begins with the discussion of the most basic plasma properties related to collisionality and magnetization and then proceeds to more complex phenomena associated with magnetic field evolution in a highly dynamical plasma. Plasma transport properties are discussed mostly in conjunction with the Magnetized Liner Inertial Fusion concept. Issues of interplay of the c… Show more

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Cited by 39 publications
(14 citation statements)
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“…Magnetic reconnection is the rapid change of magnetic field topology in a plasma, accompanied by bulk heating and particle acceleration [1,2]. Reconnection is a ubiquitous process which occurs across a vast region of parameter space, including the collisionless plasmas at the heliopause [3] and the dense, hot plasmas deep in the solar convection zone [4,5]. Understanding of magnetic reconnection has improved over the years thanks to dedicated laboratory experiments.…”
mentioning
confidence: 99%
“…Magnetic reconnection is the rapid change of magnetic field topology in a plasma, accompanied by bulk heating and particle acceleration [1,2]. Reconnection is a ubiquitous process which occurs across a vast region of parameter space, including the collisionless plasmas at the heliopause [3] and the dense, hot plasmas deep in the solar convection zone [4,5]. Understanding of magnetic reconnection has improved over the years thanks to dedicated laboratory experiments.…”
mentioning
confidence: 99%
“…Note that if impurities from the liner are magnetized, they will be similarly expelled from the hotspot by the same mechanisms as the ash. This tendency was observed in mixed-magnetization impurity transport simulations for a non-compressing, wall-confined plasma, where the impurity distribution was found to peak near the point of marginal magnetization Ω I τ IH ∼ 1 [20,23]. The peaking occurs because near the wall, where the impurities are not magnetized, the thermal forces act oppositely.…”
mentioning
confidence: 81%
“…For this choice of parameters, D 0a = 0.68 and S 0a σv 0a = 0.087, while at the core D 0h = 0.1 and S 0h σv 0h = 0.24. This is on the slower and higher-field end for MagLIF stagnation parameters [20], which we adopt to make sure that our orderings Ω I τ IH > 1 and ρ I /a 1 remain valid throughout most of the plasma for the duration of the simulation; at t = 0, r = a, we have Ω I τ IH = 2.1 and ρ I /a = 0.012. The brief periods at the beginning and end during which the edge plasma is unmagnetized should not have a substantial impact on the results, since (a) the majority of the plasma is more magnetized than the edge, and (b) most reactions occur near maximal compression, when the edge plasma is magnetized.…”
mentioning
confidence: 99%
“…The atomic mass was equal to 2. Hence, the temperature equilibration time of electrons and ions was approximately 10 ns, according to the known relation given in [4]. Consequently, at this temperature, density, and dimensions of the structure, we could assume the temperature equilibrium inside the ball-like structures.…”
Section: Data From Shot #10122mentioning
confidence: 93%