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High-power laser experiment forming a supercritical collisionless shock in a magnetized uniform plasma at rest
- Source :
- Phys. Rev. E, 105, 025203 (2022)
- Publication Year :
- 2022
-
Abstract
- We present a new experimental method to generate quasi-perpendicular supercritical magnetized collisionless shocks. In our experiment, ambient nitrogen (N) plasma is at rest and well-magnetized, and it has uniform mass density. The plasma is pushed by laser-driven ablation aluminum (Al) plasma. Streaked optical pyrometry and spatially resolved laser collective Thomson scattering clarify structures of plasma density and temperatures, which are compared with one-dimensional particle-in-cell simulations. It is indicated that just after the laser irradiation, the Al plasma is magnetized by a self-generated Biermann battery field, and the plasma slaps the incident N plasma. The compressed external field in the N plasma reflects N ions, leading to counter-streaming magnetized N flows. Namely we identify the edge of the reflected N ions. Such interacting plasmas form a magnetized collisionless shock.<br />Comment: 17 pages, 12 figures, 1 table. Physical Review E, in press
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. E, 105, 025203 (2022)
- Publication Type :
- Report
- Accession number :
- edsarx.2201.07976
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevE.105.025203