中文
相关论文

相关论文: Space-time evolution of electron cascades in diamo…

200 篇论文

Modelling the inelastic scattering of electrons in water is fundamental, given their crucial role in biological damage. In Monte Carlo track-structure codes used to assess biological damage, the energy loss function, from which cross…

Monte Carlo simulations were conducted using the Particle and Heavy Ion Transport code System (PHITS) to investigate the role of secondary cosmic rays in the generation of long-duration bursts from thunderclouds and to clarify the…

大气与海洋物理 · 物理学 2026-03-02 Harufumi Tsuchiya

An effective mass based model accounting for the conduction band quantization in a high aspect ratio semiconductor nanotip is developed to describe injected electron transport and subsequent electron emission from the nanotip. A transfer…

介观与纳米尺度物理 · 物理学 2019-06-06 Andrei Piryatinski , Chengkun Huang , Thomas J. T. Kwan

The ion production in an ECRIS is modelled using a particle-in-cell Monte-Carlo collision code in a three-dimensional geometry. Only the heavy particles (ions and atoms) are tracked, with the electron density determined from the requirement…

原子物理 · 物理学 2009-07-29 V. Mironov , J. P. M. Beijers

We use a set of Monte Carlo simulations to follow the cascade produced by a primary electron of energy E_in in the intergalactic medium. We choose E_in=3-10 keV as expected from the decay of one of the most popular Warm Dark Matter (WDM)…

天体物理学 · 物理学 2009-11-13 M. Valdés , A. Ferrara

Diffusion of electrons in a two-dimensional system in static random magnetic fields is studied by solving the time-dependent Schr\"{o}dinger equation numerically. The asymptotic behaviors of the second moment of the wave packets and the…

凝聚态物理 · 物理学 2009-10-28 Tohru Kawarabayashi , Tomi Ohtsuki

Measurements of spin dynamics of electrons in a degenerate two dimensional electron gas, where the Dyakonov-Perel mechanism is dominant, have been used to investigate the electron scattering time (tp*) as a function of energy near the Fermi…

其他凝聚态物理 · 物理学 2008-03-11 W. J. H. Leylanda , R. T. Harley , M. Henini , A. J. Shields , I. Farrer , D. A. Ritchie

We investigated the role that the electron-electron interaction plays on the propagating properties of wave packets in a one-dimensional crystal with impurities. We considered two interacting particles with opposite spins in a band, where…

无序系统与神经网络 · 物理学 2007-05-23 P. E. de Brito , E. S. Rodrigues , H. N. Nazareno

We present a new Monte-Carlo radiative transfer code, which we have used to model the cyclotron line features in the environment of a variable magnetic field and plasma density. The code accepts an input continuum and performs only the line…

高能天体物理现象 · 物理学 2022-07-20 Sandeep Kumar , Suman Bala , Dipankar Bhattacharya

Based on an invariant embedding principle for the backscattering function we calculate the electron emission yield for metal surfaces at very low electron impact energies. Solving the embedding equation within a quasi-isotropic…

材料科学 · 物理学 2022-04-06 F. X. Bronold , H. Fehske

We present a numerical investigation of energy and charge distributions during electron-beam-induced growth of W nanostructures on SiO2 substrates using Monte Carlo simulation of electron transport. This study gives a quantitative insight…

介观与纳米尺度物理 · 物理学 2013-11-26 Francesc Salvat-Pujol , Harald O. Jeschke , Roser Valenti

We present a Monte Carlo model for degradation of 1-10,000 eV electrons in an atmosphere of methane. The electron impact cross sections for CH4 are compiled and analytical representations of these cross sections are used as input to the…

空间物理 · 物理学 2015-05-27 Anil Bhardwaj , Vrinda Mukundan

We develop a model for stochastic acceleration of electrons in solar flares. As in several previous models, the electrons are accelerated by turbulent fast magnetosonic waves ("fast waves") via transit-time-damping (TTD) interactions. (In…

太阳与恒星天体物理 · 物理学 2015-06-19 Peera Pongkitiwanichakul , Benjamin D. G. Chandran

Electron emission spectra of a thin gold foil after photon interaction were measured over the energy range between 50 eV and 9500 eV to provide reference data for Monte Carlo radiation-transport simulations. Experiments were performed with…

We calculate the hydrogen and helium-ionizing radiation escaping star-forming molecular clouds, as a function of the star cluster mass and compactness, using a set of high-resolution radiation-magneto-hydrodynamic simulations of star…

星系天体物理 · 物理学 2020-01-29 Chong-Chong He , Massimo Ricotti , Sam Geen

A Monte Carlo scheme is described where the secondary electron generation has been incorporated. The initial position of a secondary electron due to Fermi sea excitation is assumed to be where the inelastic collision took place, while the…

材料科学 · 物理学 2015-05-13 Maurizio Dapor

A Monte Carlo study of the late time growth of $L1_2$ ordered domains on a fcc $A_3B$ binary alloy is presented. The energy of the alloy has been modeled by a nearest neighbor interaction Ising hamiltonian. The system exhibits a fourfold…

凝聚态物理 · 物理学 2009-10-28 Carlos Frontera , Eduard Vives , Teresa Castán , Antoni Planes

In a strong magnetic field, a high-energy photon can be absorbed and then produce an electron-positron pair. The produced electron/positron will in turn radiate a high-energy photon via synchrotron radiation, which then initiates a cascade.…

高能天体物理现象 · 物理学 2018-06-04 Jie-Shuang Wang , Ruo-Yu Liu , Felix Aharonian , Zi-Gao Dai

A method for Monte Carlo simulation of 2D spin-polarized electron transport in III-V semiconductor heterojunction FETs is presented. In the simulation, the dynamics of the electrons in coordinate and momentum space is treated…

凝聚态物理 · 物理学 2010-10-12 Min Shen , Semion Saikin , Ming-C. Cheng , Vladimir Privman

We present results of Monte-Carlo simulations for finite 2D single and bilayer systems. Strong Coulomb correlations lead to arrangement of particles in configurations resembling a crystal lattice. For binary layers, there exists a…

介观与纳米尺度物理 · 物理学 2015-06-24 A. V. Filinov , M. Bonitz , Yu. E. Lozovik