Related Experiment Video
Updated: Jul 4, 2026

Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope
Published on: July 24, 2021
Periodic electron structures in gases: a fluid model of the "window" phenomenon
1Faculté des Sciences, Université Libre de Bruxelles, 1050 Brussels, Belgium.
Abstract:
Periodic electron spatial structures in gases occur within a window of voltages and pressures. Recent accurate solutions of Boltzmann's equation portray this effect, but offer little physical insight into the causes of windowing. Here we show for the first time how such insight can be obtained using the fluid model established by Robson, White, and Petrović [Rev. Mod. Phys. 77, 1303 (2005)10.1103/RevModPhys.77.1303], with an appropriate generalization of the heat flux ansatz. Conversely, the success in portraying windowing itself becomes a stringent test of the integrity of this fluid model, which can then be applied to a wider range of problems.
Related Concept Videos
The Kinetic Model of Gases
The Quantum-Mechanical Model of an Atom
The de Broglie Wavelength
Emission Spectra
The Bohr Model
Electron Orbital Model

