Target Plasma Formation for Magnetic Compression/Magnetized Target Fusion

Lindemuth, I.R.; Reinovsky, R.E.; Chrien, R.E.; Christian, J. M.; Ekdahl, C.A.; Goforth, J.H.; Haight, R.C.; Idzorek, G.; King, N.S.P.; Kirkpatrick, Ronald C.; Larson, R. E.; Morgan, G. L.; Olinger, B. W.; Oona, H.; Sheehey, P.T.; Shlachter, J.S.; Smith, Robert S.; Veeser, L. R.; Warthen, B.J.; Younger, S.M.; Chernyshev, V.K.; Mokhov, V.N.; Demin, A.N.; Dolin, Yurii N.; Garanin, S. F.; Иванов, В. А.; Корчагин, В. П.; Mikhailov, O. D.; Морозов, И.В.; Pak, S.V.; Pavlovskii, E. S.; Seleznev, N. Y.; Skobelev, A.N.; Volkov, G. I.; Yakubov, V. A.

doi:10.1103/physrevlett.75.1953

Cited by 104 publications

(21 citation statements)

References 6 publications

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“…The one-dimensional Eulerian simulations reported here are performed with the computer code, MHRDR (Magneto-Hyrdro-Radiative Dynamics Research), a two-dimensional computer code that has previously been used to model, among others, the one-and two-dimensional behavior of frozen deuterium wires [12] and the two-dimensional behavior of a Magnetized Target Fusion plasma formation system [13].…”

Section: The Mhrdr Codementioning

confidence: 99%

Verification and validation adventures in simulating megagauss-magnetic-field-induced plasma formation on thickwire metallic surfaces

Lindemuth

Siemon

Bauer

et al. 2012

2012 14th International Conference on Megagauss Magnetic Field Generation and Related Topics (MEGAGAUSS)

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We discuss various verification and validation issues in computational modeling of a series of aluminum "thickwire," i.e., rod, experiments that have been conducted on the University of Nevada, Reno (UNR) Zebra generator (2 TW, 1 MA, 100 ns). These conceptually simple experiments involve multi-megagauss surface magnetic fields and have proven to be exceptionally rich in physical phenomena. The experiments also present severe computational challenges. We show that with a proper choice of equation-of-state and resistivity models Eulerian simulations can reproduce many of the observations to a reasonable degree. We also show that Eulerian and Lagrangian computations agree only with serious caveats, leading to the question of whether or not the computations are satisfactorily verified.

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Section: The Mhrdr Codementioning

confidence: 99%

Verification and validation adventures in simulating megagauss-magnetic-field-induced plasma formation on thickwire metallic surfaces

Lindemuth

Siemon

Bauer

et al. 2012

2012 14th International Conference on Megagauss Magnetic Field Generation and Related Topics (MEGAGAUSS)

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“…It consists of 1) creating of a warm plasma with a closed magnetic field strong enough to reduce electron thermal conduction, 2) operating at lower densities than IFE (but much higher than MFE) in order to reduce radiation losses, and 3) compressing the plasma and embedded field to fusion conditions. [21][22][23][24][25][26][27][28] Early experiments on wall confinement [28,29] and the IFE theory lead to early experiments, [23,24] but later proposed variants [31,32] are based on a field-reversed configuration with a guide field. 1-D & 2-D calculations [4,24,32,33] indicate that both approaches can provide adequate compression of the magnetized plasma, i.e., sufficient to initiate thermonuclear bum.…”

Section: Altering the Fusion Physicsmentioning

confidence: 99%

A Tutorial on Ignition and Gain for Small Fusion Targets

Kirkpatrick¹

2009

AIP Conference Proceedings

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“…This inspired the Linus project at the Naval Research Laboratory [25], and later the fast-liner project at Los Alamos [26]. In Russia, MIF took a form called magnitnoye obzhatiye, or magnetic compression (MAGO), first revealed by Russian scientists when the Cold War ended [27][28][29], and worked on collaboratively with experiments at LANL [30]. Presently the USA clearly holds world leadership in MIF research, but fledgling MIF efforts are also underway in China and France.…”

Section: Statusmentioning

confidence: 99%

Magneto-Inertial Fusion

et al. 2015

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In this community white paper, we describe an approach to achieving fusion which employs a hybrid of elements from the traditional magnetic and inertial fusion concepts, called magneto-inertial fusion (MIF). The status of MIF research in North America at multiple institutions is summarized including recent progress, research opportunities, and future plans.Keywords Magneto-inertial fusion Á Magnetized target fusion Á Liner Á Plasma jets Á Fusion energy Á MagLIF DescriptionMagneto-inertial fusion (MIF) (aka magnetized target fusion) [1][2][3] is an approach to fusion that combines the compressional heating of inertial confinement fusion (ICF) with the magnetically reduced thermal transport and magnetically enhanced alpha heating of magnetic confinement fusion (MCF). From an MCF perspective, the higher density, shorter confinement times, and compressional heating as the dominant heating mechanism reduce the impact of instabilities. From an ICF perspective, the primary benefits are potentially orders of magnitude reduction in the difficult to achieve qr parameter (areal density), and potentially significant reduction in velocity requirements and hydrodynamic instabilities for compression drivers. In fact, ignition becomes theoretically possible from qr B 0.01 g/cm 2 up to conventional ICF values of qr * 1.0 g/cm 2 , and as in MCF, Br rather than qr becomes the key figure-of-merit for ignition because of the enhanced alpha deposition [4]. Within the lower-qr parameter space, MIF exploits lower required implosion velocities (2-100 km/s, compared to the ICF minimum of 350-400 km/s) allowing the use of much more efficient (g C 0.3) pulsed power drivers, while at the highest (i.e., ICF) end of the qr range, both higher gain G at a given implosion velocity as well as lower implosion velocity and reduced hydrodynamic instabilities are theoretically possible. To avoid confusion, it must be emphasized that the wellknown conventional ICF burn fraction formula does not apply for the lower-qr ''liner-driven'' MIF schemes, since it is the much larger mass and qr of the liner (and not that of the burning fuel) that determines the ''dwell time'' and fuel burnup fraction. In all cases, MIF approaches seek to satisfy/ exceed the inertial fusion energy (IFE) figure-of-merit gG * 7-10 required in an economical plant with reasonable recirculating power fraction. A great advantage of MIF is indeed its extremely wide parameter space which allows it greater versatility in overcoming difficulties in implementation or technology, as evidenced by the four diverse approaches and associated implosion velocities shown in Fig. 1.MIF approaches occupy an attractive region in thermonuclear q-T parameter space, as shown in a paper by

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Target Plasma Formation for Magnetic Compression/Magnetized Target Fusion

Cited by 104 publications

References 6 publications

Verification and validation adventures in simulating megagauss-magnetic-field-induced plasma formation on thickwire metallic surfaces

Verification and validation adventures in simulating megagauss-magnetic-field-induced plasma formation on thickwire metallic surfaces

A Tutorial on Ignition and Gain for Small Fusion Targets

Magneto-Inertial Fusion

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