High-power laser experiment forming a supercritical collisionless shock in a magnetized uniform plasma at rest.
Journal
Physical review. E
ISSN: 2470-0053
Titre abrégé: Phys Rev E
Pays: United States
ID NLM: 101676019
Informations de publication
Date de publication:
Feb 2022
Feb 2022
Historique:
received:
23
09
2020
accepted:
19
01
2022
entrez:
16
3
2022
pubmed:
17
3
2022
medline:
17
3
2022
Statut:
ppublish
Résumé
We present an experimental method to generate quasiperpendicular 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 counterstreaming magnetized N flows. Namely, we identify the edge of the reflected N ions. Such interacting plasmas form a magnetized collisionless shock.
Identifiants
pubmed: 35291161
doi: 10.1103/PhysRevE.105.025203
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM