US Heavy Ion Beam Research for High Energy Density Physics Applications and Fusion

Davidson, R C; Logan, B G; Barnard, J J; Bieniosek, F M; Briggs, R J

doi:10.2172/878296

Cited by 3 publications

(5 citation statements)

References 34 publications

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“…We emphasize that, as for most nonlinear problems, the conclusion here is not unique and other flow behavior can also exist. Nevertheless, our results illustrate an unusual nonlinear plasma flow property that could be useful to interpreting unexpected phenomena, such as weak-or de-coupling among the degrees of freedom, in high energy-density astrophysical and laser-induced plasma expansions and explosions, as well as other areas (Gurevich and Pariiskaya 1986;Bartel et al 1991;Blondin et al 1996;Zel'dovich and Raizer 2002;Mora 2003;Davidson et al 2004;Kaladze et al 2007;Shukla and Eliasson 2009; Meliani and Keppens 2010; Mamun and Shukla 2011).…”

Section: Discussionmentioning

confidence: 67%

“…involving high energy density, as defined in Davidson et al (2004). Since the problem is intrinsically highly nonlinear, it is traditionally investigated by assuming that the process is self-similar, so that the governing equations can be simplified and solved analytically.…”

Section: Introductionmentioning

confidence: 99%

“…Expansion of a gas or plasma into vacuum is of interest in many areas of research and applications, such as astrophysical explosions, inertial confinement fusion, laser acceleration of charged particles, etc. involving high energy density, as defined in Davidson et al (2004). Since the problem is intrinsically highly nonlinear, it is traditionally investigated by assuming that the process is self-similar, so that the governing equations can be simplified and solved analytically.…”

Section: Introductionmentioning

confidence: 99%

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Asymmetric oscillatory expansion of a cylindrical plasma

Karimov

Yu²,

Stenflo

2013

J. Plasma Phys.

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Section: Discussionmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Asymmetric oscillatory expansion of a cylindrical plasma

Karimov

Yu²,

Stenflo

2013

J. Plasma Phys.

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“…High-powered, high-energy lasers such as NIF, the OMEGA laser at the University of Rochester, and other facilities around the world compress and heat material, producing unique states of matter and unique radiation environments in the laboratory. These conditions are of interest for High Energy Density Science (HEDS) supporting the NIF missions in national security and fundamental science [2]. Achieving ignition on NIF will not only support the national security mission, but will demonstrate the target physics basis of inertial fusion for energy production.…”

Section: Introductionmentioning

confidence: 99%

The National Ignition Campaign: status and progress

Moses¹

2013

Nucl. Fusion

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Abstract. The National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL) has been operational since March 2009 and a variety of experiments have been completed and many more are planned in support of NIF's mission areas: national security, fundamental science, and fusion energy. NIF capabilities and infrastructure are in place to support all of its missions with over 50 X-ray, optical and nuclear diagnostic systems and the ability to shoot cryogenic targets and DT layered capsules. The NIF has also been qualified for the use of tritium and other special materials as well as to perform high-yield experiments and classified experiments. Implosions with record indirect-drive neutron yield of 7.5  10 14 neutrons have been achieved. NIF, a Nd:Glass laser facility, is routinely operating at 1.6 MJ of ultraviolet (3ω) light on target with very high reliability. It recently reached its design goal of 1.8 MJ and 500 TW of 3ω light on target, and has performed target experiments with 1.9 MJ at peak powers of 410 TW. The National Ignition Campaign (NIC), an international effort with the goal of demonstrating thermonuclear burn in the laboratory, has been making steady progress toward achieving ignition. Other experiments have been completed in support of high-energy science, materials equation of state, and materials strength. In all cases, records of extreme temperatures and pressures, highest neutron yield and highest energy densities have been achieved. This paper will describe the unprecedented experimental capabilities of the NIF and the results achieved so far on the path toward ignition.

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“…The warm density matter (WDM) regime has a high scientific discovery potential [2,3] for the properties of plasmas at high densities (∼0.1-10 g cm −3 ) and pressures and at moderate temperatures (∼1 eV) in which the Coulomb interaction energy between neighbouring ions exceeds the temperature kT. These strongly coupled plasmas are difficult to study analytically and by numerical simulation.…”

Section: Introductionmentioning

confidence: 99%

Heavy-ion-fusion-science: summary of US progress

Yu¹,

Logan²,

Barnard³

et al. 2007

Nucl. Fusion

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Over the past two years noteworthy experimental and theoretical progress has been made towards the top-level scientific question for the US programme on heavy-ion-fusion-science and high energy density physics: ‘How can heavy-ion beams be compressed to the high intensity required to create high energy density matter and fusion conditions?’ New results in transverse and longitudinal beam compression, high-brightness transport and beam acceleration will be reported. Central to this campaign is final beam compression. With a neutralizing plasma, we demonstrated transverse beam compression by an areal factor of over 100 and longitudinal compression by a factor of > 50. We also report on the first demonstration of simultaneous transverse and longitudinal beam compression in plasma. High beam brightness is key to high intensity on target, and detailed experimental and theoretical studies on the effect of secondary electrons on beam brightness degradation are reported. A new accelerator concept for near-term low-cost target heating experiments was invented, and the predicted beam dynamics validated experimentally. We show how these scientific campaigns have created new opportunities for interesting target experiments in the warm dense matter regime. Finally, we summarize progress towards heavy-ion fusion, including the demonstration of a compact driver-size high-brightness ion injector. For all components of our high intensity campaign, the new results have been obtained via tightly coupled efforts in experiments, simulations and theory.

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US Heavy Ion Beam Research for High Energy Density Physics Applications and Fusion

Cited by 3 publications

References 34 publications

Asymmetric oscillatory expansion of a cylindrical plasma

Asymmetric oscillatory expansion of a cylindrical plasma

The National Ignition Campaign: status and progress

Heavy-ion-fusion-science: summary of US progress

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