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Simulations of ignition-scale fast ignition targets have been performed with the new integrated Zuma-Hydra PIC-hydrodynamic capability. We consider an idealized spherical DT fuel assembly with a carbon cone, and an artificially-collimated…

等离子体物理 · 物理学 2012-09-12 D. J. Strozzi , M. Tabak , D. J. Larson , M. M. Marinak , M. H. Key , L. Divol , A. J. Kemp , C. Bellei , H. D. Shay

Magnetic catalysis is the enhancement of a condensate due to the presence of an external magnetic field. Magnetic catalysis at $T=0$ is a robust phenomenon in low-energy theories and models of QCD as well as in lattice simulations. We…

高能物理 - 唯象学 · 物理学 2021-06-08 Jens O. Andersen

We report the first observation on the EXL-50U spherical torus that energetic particles injected by neutral beam injection (NBI) can be stably accelerated to significantly higher energies - reaching up to 2.5 times the injection energy,…

Autoignition experiments for n-butanol have been performed using a heated rapid compression machine at compressed pressures of 15 and 30 bar, in the compressed temperature range of 675-925 K, and for equivalence ratios of 0.5, 1.0, and 2.0.…

化学物理 · 物理学 2017-06-06 Bryan W. Weber , Kamal Kumar , Yu Zhang , Chih-Jen Sung

Nanostructured solid boron-hydrogen compounds have been suggested as target and fuel for laser fusion, offering improved laser-plasma coupling, avoiding cryogenic fuel handling and fuel pre-compression and ultimately allowing a transit from…

等离子体物理 · 物理学 2024-01-15 Karl Lackner , Rainer Burhenn , Sina Fietz , Alexander von Müller

Autoignition delay experiments were performed for n-butanol in a heated rapid compression machine. Experiments were performed at pressures of 15 and 30 bar, in the temperature range 650-900 K, and for equivalence ratios of 0.5, 1.0, and…

化学物理 · 物理学 2017-06-12 Bryan W. Weber

A numerical model of single-domain nanoscale iron magnets fabricated using scanning-microscope-assisted chemical vapor deposition is simulated using finite-temperature micromagnetics. A Projective-dynamics method is used to determine the…

统计力学 · 物理学 2007-05-23 Gregory Brown , M. A. Novotny , Per Arne Rikvold

The declared aim of Marvel Fusion is the realization of a reactor based on the aneutronic fusion of proton and boron-11 nuclei in the near future, making use of latest-day laser technology and nano-structured materials. The aim of the…

等离子体物理 · 物理学 2022-04-12 Karl Lackner

Auto-ignition process of stoichiometric mixture of methane-air is investigated using detailed chemical kinetics in a single-zone combustion chamber. Effect of initial temperature on start of combustion (SOC). The Arrhenius expression for…

化学物理 · 物理学 2017-12-08 Bagher Abareshi , Hassan Mohagheghi , Morteza Khosronia Kalalabadi

One of the best methods in inertial confinement fusion (ICF) is the concept of central spark ignition, consisting of two distinct regions named as hot and cold regions and formed by hydro-dynamical implosion of fuel micro-sphere central…

等离子体物理 · 物理学 2007-05-23 A. Ghasemizad , M. Kamran

We report preliminary considerations on cryogenics for a higher-energy LHC ("HE-LHC") with about 16.5 TeV beam energy and 20-T dipole magnets. In particular we sketch the heat loads scaled on the proposed principal beam parameters and size…

加速器物理 · 物理学 2011-08-10 D. Delikaris , L. Tavian

Electromagnetic stimulation of energetic materials provides a noninvasive and nondestructive tool for detecting and identifying explosives. We combine structural information based on X-ray computed tomography, experimental dielectric data,…

Fast ignition of inertial fusion targets driven by quasi-monoenergetic ion beams is investigated by means of numerical simulations. Light and intermediate ions such as lithium, carbon, aluminium and vanadium have been considered.…

等离子体物理 · 物理学 2015-06-22 J. J. Honrubia , J. C. Fernandez , B. M. Hegelich , M. Murakami , C. D. Enriquez

Rapid heating of small buried regions by laser generated fast electrons may be useful for applications such as XUV radiation sources or as drivers for shock experiments. In non-structured targets the heating profile possesses a global…

等离子体物理 · 物理学 2016-10-12 Holger Schmitz , Alex P. L. Robinson

A method for computing minimum ignition energies for gaseous fuel mixtures with detailed and reduced chemistry, by numerical integration of time-dependent conservation equations in a spherically symmetrical configuration, is presented and…

We report consistent ignition of high-pressure (p > 20-30 bar) hydrogen-oxygen mixtures diluted with helium, using an unfocused Nd:YAG laser. This corresponds to laser irradiances several orders of magnitude below the minimum ignition…

We study a flame propagating in the gaseous combustible mixture with suspended inert particles. The gas is assumed to be transparent for the radiation emitted by the combustion products, while particles absorb and re-emit the radiation.…

流体动力学 · 物理学 2015-07-03 M. F. Ivanov , A. D. Kiverin , M. A. Liberman

Imposing a magnetic field on inertial confinement fusion (ICF) implosions magnetizes the electrons in the compressed fuel; this suppresses thermal losses which increases temperature and fusion yield. Indirect-drive experiments at the…

等离子体物理 · 物理学 2025-08-15 R. C. Spiers , A. Bose , C. A. Frank , B. Lahmann , J. D. Moody , H. Sio , D. J. Strozzi

We report first-principles calculations of local heating in nanoscale junctions formed by a single molecule and a gold point contact. Due to a larger heat dissipation, the single molecule heats up less than the gold point contact. We also…

介观与纳米尺度物理 · 物理学 2015-06-24 Yu-Chang Chen , Michael Zwolak , Missimiliano Di Ventra