Estimates of confinement time and energy gain for plasma liner driven magnetoinertial fusion using an analytic self-similar converging shock model

Cassibry, Jason; Cortez, Ross; Hsu, S. C.; Witherspoon, F. D.

doi:10.1063/1.3257920

Cited by 32 publications

(19 citation statements)

References 15 publications

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“…11 and were significantly lower compared to estimates of the order of 1 s obtained with the converging shock model of Ref. 15. Turning off the alpha particle heating reduced the fusion gain by 1.7 times.…”

Section: Discussionmentioning

confidence: 47%

Spherically symmetric simulation of plasma liner driven magnetoinertial fusion

Samulyak

Parks

2010

Physics of Plasmas

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Spherically symmetric simulations of the implosion of plasma liners and compression of plasma targets in the concept of the plasma jet driven magnetoinertial fusion have been performed using the method of front tracking. The cases of single deuterium and xenon liners and double layer deuterium-xenon liners compressing various deuterium-tritium targets have been investigated, optimized for maximum fusion energy gains, and compared with theoretical predictions and scaling laws of [P. Parks, Phys. Plasmas 15, 062506 (2008)]. In agreement with the theory, the fusion gain was significantly below unity for deuterium-tritium targets compressed by Mach 60 deuterium liners. The most optimal setup for a given chamber size contained a target with the initial radius of 20 cm compressed by a 10 cm thick, Mach 60 xenon liner, achieving a fusion energy gain of 10 with 10 GJ fusion yield. Simulations also showed that composite deuterium-xenon liners reduce the energy gain due to lower target compression rates. The effect of heating of targets by alpha particles on the fusion energy gain has also been investigated.

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Section: Discussionmentioning

confidence: 47%

Spherically symmetric simulation of plasma liner driven magnetoinertial fusion

Samulyak

Parks

2010

Physics of Plasmas

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“…The latter is envisioned as a standoff driver for MIF. 2, 3,6,7,47,48 The dynamics arising in the jet merging, e.g., shock formation, sets the properties of the subsequent, merged plasma that ultimately determines the liner uniformity and peak ram pressure (ρv 2 ). These physics issues have been considered recently via theory and numerical modeling.…”

Section: On the Use Of Merging Plasma Jets For Forming Sphericallmentioning

confidence: 99%

Experimental evidence for collisional shock formation via two obliquely merging supersonic plasma jets

et al. 2014

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We report spatially resolved measurements of the oblique merging of two supersonic laboratory plasma jets. The jets are formed and launched by pulsed-power-driven railguns using injected argon, and have electron density ∼ 10 14 cm −3 , electron temperature ≈ 1.4 eV, ionization fraction near unity, and velocity ≈ 40 km/s just prior to merging. The jet merging produces a few-cm-thick stagnation layer, as observed in both fastframing camera images and multi-chord interferometer data, consistent with collisional shock formation [E. C. Merritt et al., Phys. Rev. Lett. 111, 085003 (2013)].

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“…Results based on an 1D analytical model of MIF implosions 5 also found promising energygain results, especially in spherical geometry. Analytical works 16,17 have studied the hydrodynamic scaling properties of imploding plasma liners, and 1D hydrodynamic simulations of plasma-liner implosions 18,19 and target compression [20][21][22] have also been performed, as have 3D simulations of plasma-jet merging and plasma-liner formation. [23][24][25] Experimentally, PJMIF-relevant studies have been conducted on plasma-jet propagation, 26,27 as well as oblique two-jet 28,29 and three-jet merging.…”

Section: 9mentioning

confidence: 99%

Semi-analytic model of plasma-jet-driven magneto-inertial fusion

Langendorf

Hsu

2017

Physics of Plasmas

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A semi-analytic model for plasma-jet-driven magneto-inertial fusion is presented. Compressions of a magnetized plasma target by a spherically imploding plasma liner are calculated in one dimension (1D), accounting for compressible hydrodynamics and ionization of the liner material, energy losses due to conduction and radiation, fusion burn and alpha deposition, separate ion and electron temperatures in the target, magnetic pressure, and fuel burn-up. Results show 1D gains of 3-30 at spherical convergence ratio < 15 and 20-40 MJ of liner energy, for cases in which the liner thickness is 1 cm and the initial radius of a preheated magnetized target is 4 cm. Some exploration of parameter space and physics settings is presented. The yields observed suggest that there is a possibility of igniting additional dense fuel layers to reach high gain.

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Estimates of confinement time and energy gain for plasma liner driven magnetoinertial fusion using an analytic self-similar converging shock model

Cited by 32 publications

References 15 publications

Spherically symmetric simulation of plasma liner driven magnetoinertial fusion

Spherically symmetric simulation of plasma liner driven magnetoinertial fusion

Experimental evidence for collisional shock formation via two obliquely merging supersonic plasma jets

Semi-analytic model of plasma-jet-driven magneto-inertial fusion

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