Kinetics of the collisionless expansion of spherical nanoplasmas
F. Peano, F. Peinetti, R. Mulas, G. Coppa, L. O. Silva
Abstract
The collisionless expansion of spherical plasmas composed of cold ions and hot electrons is analyzed using a novel kinetic model, with special emphasis on the influence of the electron dynamics. Simple, general laws are found, relating the relevant expansion features to the initial conditions of the plasma, determined from a single dimensionless parameter. A transition is identified in the behavior of the ion energy spectrum, which is monotonic only for high electron temperatures, otherwise exhibiting a local peak far from the cutoff energy.
Create a lesson
Related papers
Apokamp-type Gas Discharge Phenomenon: Experimental and Theoretical Backgrounds
Vasily Yu. Kozhevnikov, Andrey V. Kozyrev, Aleksandr O. Kokovin et al.
Real-time virtual circuits for plasma shape control via neural network emulators: integration and testing in the MAST-U PCS
Matthew J. Marshall, Edward Jones, Graham J. McArdle et al.
Experimental Characterization of Additively Manufactured Metallic Alloys for Electric Propulsion Applications
J. Chamberlain, A. Shashurin
First Plasma Commissioning and Operational Highlights from India's First Spherical Tokamak at IPR
Kishore Mishra, Aditya Verma, N. Mansoori et al.
Machine learning methods for modelling local, linear gyrokinetic simulations of MAST-U pedestal turbulence
Anna Niemelä, Daniel Jordan, Aaro Järvinen et al.
Ion-acoustic eigenmodes in a helical magnetic mirror
Ivan Chernoshtanov