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The characteristic properties of the hot nuclear matter existing at the time of fragment formation in the multifragmentation events produced in the reaction $^{64}$Zn + $^{112}$Sn at 40 MeV/nucleon are studied. A kinematical focusing method…

We present calculations of secondary electron emission (SEE) yields in tungsten as a function of primary electron energies between 50 eV and 1 keV and incidence angles between 0 and 90{\deg}. We conduct a review of the established Monte…

Materials Science · Physics 2018-05-23 Hsing-Yin Chang , Andrew Alvarado , Jaime Marian

We use a suite of cosmological hydrodynamic simulations including a self-consistent treatment for inhomogeneous reionisation to study the impact of galactic outflows and photoionisation heating on the volume-averaged recombination rate of…

Cosmology and Nongalactic Astrophysics · Physics 2016-08-17 K. Finlator , S. Peng Oh , F. Özel , R. Davé

In this work, the molar volume thermal expansion coefficient of 59 room temperature ionic liquids is compared with their van der Waals volume Vw. Regular correlation can be discerned between the two quantities. An average free volume model,…

Chemical Physics · Physics 2014-04-03 Yang Yu , Reinhard Krause-Rehberg

We study the evolution of a one dimensional model atom with $\delta$-function binding potential, subjected to a dipole radiation field $E(t) x$ with $E(t)$ a $2\pi/\omega$-periodic real-valued function. Starting with $\psi(x,t=0)$ an…

Mathematical Physics · Physics 2007-06-13 O. Costin , J. L. Lebowitz , C. Stucchio

We investigated the pressure dependence of gas flow and field ion intensity of a coaxial ion source operating at room temperature over a wide pressure range, testing various gases and ionisation voltages. Flow conductance measurements…

A simple model is proposed to examine the isotopic yields of the fragments from binary fission. For a given charge partition the peaks and widths in the isotope distributions are studied both with the liquid-drop model and with shell…

Nuclear Theory · Physics 2009-11-10 W. A. Friedman

It has been shown that to calculate the parameters of the electrostatic field of the ion crystal lattice it sufficient to take into account ions located at a distance of 1-2 lattice spacings. More distant ions make insignificant…

General Physics · Physics 2010-01-26 Alexander Ivanchin

At the free-electron laser FLASH, multiple ionization of neon atoms was quantitatively investigated at 93.0 eV and 90.5 eV photon energy. For ion charge states up to 6+, we compare the respective absolute photoionization yields with results…

Atomic Physics · Physics 2015-06-12 R Guichard , M Richter , J-M Rost , U Saalmann , A A Sorokin , K Tiedtke

We present a discussion of the linear thermoelectric response of an interacting electron gas in a quantizing magnetic field. Boundary currents can carry a significant fraction of the net current passing through the system. We derive general…

Condensed Matter · Physics 2009-10-28 N. R. Cooper , B. I. Halperin , I. M. Ruzin

The overwhelming foreground causes severe contamination on the detection of 21-cm signal during the Epoch of Reionization (EoR). Among various foreground components, the Galactic free-free emission is less studied, so that its impact on the…

Astrophysics of Galaxies · Physics 2020-07-07 Xiaoli Lian , Haiguang Xu , Dongchao Zheng , Zhenghao Zhu , Dan Hu

We describe new exact results for a model of ionization of a bound state, induced by an oscillating potential. In particular we have obtained exact expressions, in the form of readily computable rapidly convergent sums, for the energy…

Mathematical Physics · Physics 2017-10-17 Ovidiu Costin , Rodica D. Costin , Joel L. Lebowitz

The electrostatic screening properties of ionic fluids are of paramount importance in countless physical processes. Yet, the behavior of ionic conductors out of thermal equilibrium has to date mainly been studied in the context of…

Statistical Mechanics · Physics 2023-04-19 Andrea Grisafi , Federico Grasselli

We present a theoretical study of the dissociative tunneling ionization process. Analytic expressions for the nuclear kinetic energy distribution of the ionization rates are derived. A particularly simple expression for the spectrum is…

Atomic Physics · Physics 2016-06-08 Jens Svensmark , Oleg I. Tolstikhin , Lars Bojer Madsen

Electrons colliding with spatially fixed ions in strong laser fields are investigated by solving the time-dependent Schr\"odinger equation. Considering first simple one-dimensional model systems, the mechanisms and energy spectra of fast…

Atomic Physics · Physics 2015-10-28 S. Bauch , M. Bonitz

We present new measurements of the scintillation and ionization yields in liquid xenon for low energy electronic (about 3--7 keV$_{ee}$) and nuclear recoils (about 8--20 keV$_{nr}$) at different drift fields from 236 V/cm to 3.93 kV/cm,…

Instrumentation and Detectors · Physics 2015-08-19 Qing Lin , Jialing Fei , Fei Gao , Jie Hu , Yuehuan Wei , Xiang Xiao , Hongwei Wang , Kaixuan Ni

Using Monte Carlo Collisions (MCC) method, we have performed simulations of ion velocity distribution functions (IVDF) taking into account both elastic collisions and charge exchange collisions of ions with atoms in uniform electric fields…

Plasma Physics · Physics 2017-01-10 Huihui Wang , Vladimir S Sukhomlinov , Igor D Kaganovich , Alexander S Mustafaev

In this paper a new approach to solving the 2D and 3D Ising models in external magnetic field $H\neq0$ is developed. The general formalism for the approach to the problem is presented on the example of the 2D Ising model in the external…

Statistical Mechanics · Physics 2009-10-30 Martin S. Kochman'ski

The large opacity fluctuations in the $z > 5.5$ Ly$\alpha$ forest may indicate inhomogeneous progress of reionization. To explain the observed large scatter of the effective Ly$\alpha$ optical depth ($\tau_{\rm eff}$) of the intergalactic…

While photoionization rates of Ganymede's O$_2$ dominated atmosphere are well constrained, the contribution of electron-impact ionization is rather uncertain. Previous quantitative estimates have relied on assumptions about densities and…

Earth and Planetary Astrophysics · Physics 2026-05-13 Stefan Duling , Joachim Saur , Darrell Strobel , Philippa Molyneux , Jamey R. Szalay , Thomas K. Greathouse