English
Related papers

Related papers: Ignition and Burn in a Small Magnetized Fuel Targe…

200 papers

I examine recent fittings of luminous supernovae (LSNe) with extra energy sources of magnetar and helium burning and find that in about half of these LSNe the fitting parameters have some problems. In some LSNe the total energy of these two…

High Energy Astrophysical Phenomena · Physics 2022-08-31 Noam Soker

In this paper, we demonstrate external control over the magnetization direction in ferromagnetic (FM) In_{1-x}Mn_{x}As/GaSb heterostructures. FM ordering with T_C as high as 50 K is confirmed by SQUID magnetization, anomalous Hall effect…

We examine four candidate mechanisms that could explain the high surface temperatures of magnetars. (1) Heat flux from the liquid core heated by ambipolar diffusion. It could sustain the observed surface luminosity $L_s\approx 10^{35}$…

High Energy Astrophysical Phenomena · Physics 2016-12-28 Andrei M. Beloborodov , Xinyu Li

In this paper I introduce a precise constraint on primordial magnetogenesis, for a generic class of single-field inflationary model followed by small field excursion below the Planck scale. I also establish a connection between the magnetic…

High Energy Physics - Theory · Physics 2014-06-24 Sayantan Choudhury

We use inelastic neutron scattering to measure the magnetic excitations in the underdoped superconductor La2-xSrxCuO4 (x=0.085, Tc=22 K) over energy and temperatures ranges 5 < E < 200 meV and 5 < T < 300 K respectively. At high temperature…

Superconductivity · Physics 2009-04-23 O. J. Lipscombe , B. Vignolle , T. G. Perring , C. D. Frost , S. M. Hayden

Spectral studies of quiescent emission and bursts of magnetar candidates using XMM-Newton, Chandra and Swift data are presented. Spectra of both the quiescent emission and the bursts for most magnetar candidates are reproduced by a…

Astrophysics · Physics 2015-05-13 Yujin E. Nakagawa , Atsumasa Yoshida , Kazutaka Yamaoka , Noriaki Shibazaki

Liquid Xenon (LXe) is an excellent material for experiments designed to detect dark matter in the form of Weakly Interacting Massive Particles (WIMPs). A low energy detection threshold is essential for a sensitive WIMP search. The…

Instrumentation and Detectors · Physics 2010-04-06 A. Manzur , A. Curioni , L. Kastens , D. N. McKinsey , K. Ni , T. Wongjirad

It is well known that Brunel's vacuum heating mechanism is operative for laser energy absorption when the target plasma density rises sharply. For non-relativistic laser intensities and planar targets it is also necessary that the laser…

Plasma Physics · Physics 2017-10-25 Chandrasekhar Shukla , Amita Das

This note aims at understanding the maximum allowable temperature at the hot spot during a quench in Nb3Sn accelerator magnets, through the analysis of experimental results previously presented.

Accelerator Physics · Physics 2014-01-17 G. Ambrosio

In line with the studies presented in the parts I and II of this paper, the structure of a laminar rich premixed methane flame doped with cyclopentene has been investigated. The gases of this flame contains 15.3% (molar) of methane, 26.7%…

In the present work, accurate determination of single-particle ignition is focused on using high-speed optical diagnostics combined with machine learning approaches. Ignition of individual particles in a laminar flow reactor are visualized…

Machine Learning · Computer Science 2024-12-06 Tao Li , Zhangke Liang , Andreas Dreizler , Benjamin Böhm

Many models of gamma-ray bursts suggest a common central engine: a black hole of several solar masses accreting matter from a disk at an accretion rate from 0.01 to 10 M_\sun / s. The inner region of the disk is cooled by neutrino emission…

Astrophysics · Physics 2009-11-13 Yi Xie , Chang-Yin Huang , Wei-Hua Lei

Engineering features are known to cause jets of ablator material to enter the fuel hot-spot in inertial confinement fusion implosions. The Biermann battery mechanism wraps them in self-generated magnetic field. We show that higher-Z jets…

Plasma Physics · Physics 2020-08-26 James D. Sadler , Hui Li , Brian M. Haines

We propose a laser-driven near-solid density nano-structured micro-reactor concept operating with mixed nuclear fusion fuels. The micro-reactor is capable of making use of a range of neutronic and aneutronic fuels. Its core parts consists…

Plasma Physics · Physics 2022-04-26 Hartmut Ruhl , Georg Korn

Projectile like fragments emerging from heavy ion collision have an excitation energy which is often labeled by a temperature. This temperature was recently calculated using a geometric model. We expand the geometric model to include also…

Nuclear Theory · Physics 2015-06-17 S. Mallik , S. Das Gupta , G. Chaudhuri

The magnetic moment and magnetization in GaAs/Ga$_{0.84}$In$_{0.16}$As/GaAs heterostructures with Mn deluted in GaAs cover layers and with atomically controlled Mn $\delta$-layer thicknesses near GaInAs-quantum well ($\sim$3 nm) in…

Materials Science · Physics 2015-06-22 T. Charikova , V. Okulov , A. Gubkin , A. Lugovikh , K. Moiseev , V. Nevedomsky , Yu. Kudriavstev , S. Gallardo , M. Lopez

Application of an external kilo-tesla-level magnetic field, which can be generated using high-intensity laser, to a target is a promising scheme to reduce spray angle of a laser-driven relativistic electron beam (REB) for enhancing the…

Plasma Physics · Physics 2025-06-10 Hiroki Morita , Atsushi Sunahara , Yasunobu Arikawa , Hiroshi Azechi , Shinsuke Fujioka

The quantum tunneling of the magnetization vector between excited levels are studied theoretically in single-domain ferromagnetic nanoparticles with biaxial crystal symmetry placed in an external magnetic field at an arbitarily directed…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Rong Lu , Su-Peng Kou , Jia-Lin Zhu , Lee Chang , Bing-Lin Gu

This paper presents a new chemical kinetic model developed for the simulation of auto-ignition and combustion of engine surrogate fuel mixtures sensitized by the presence of NOx. The chemical mechanism is based on the PRF auto-ignition…

Chemical Physics · Physics 2009-03-26 Jörg Anderlohr , A. Pires Da Cruz , Roda Bounaceur , Frédérique Battin-Leclerc

The linear motor driving the target for the Muon Ionisation Cooling Experiment has been redesigned to improve its reliability and performance. A new coil-winding technique is described which produces better magnetic alignment and improves…

Instrumentation and Detectors · Physics 2016-05-09 C. N. Booth , P. Hodgson , J. Langlands , E. Overton , M. Robinson , P. J. Smith , G. Barber , K. R. Long , B. Shepherd , E. Capocci , C. MacWaters , J. Tarrant