Quantitative analysis of observed filamentation structure in high energy electron beam-plasma interaction
Abstract/Contents
- Abstract
- Filamentation instability is a primary candidate mechanism that contributes to the dynamics of collisionless shock. It is of great significance to study the dynamics in the shock front, since the filaments are populated there. This mechanism is responsible for various cosmological physics phenomena and high-energy density physics, such as inertial confinement reactions, gamma burst. This report presents the first experimental evidence of filamentation structure formed by relativistic electron beam-plasma interactions. This study, conducted at the Omega laser facility at the University of Rochester, focuses on dynamics of a hot electron beam interacting with uniform, slowly expanding plasma electrons. Drawing from an extensive literature review on theoretical and simulation studies of Filamentation instability in relativistic high-energy physics, the observations and analysis from this experiment reveal a filamentation structure with a spatial scale range from 0.150 - 0.350 nm. Its linear stage persists for 50 ps, which serves as its temporal scale. Diagnostic methods, including the Electron-Positron-Proton spectrometer and proton radiography, have been employed. Further analysis for retrieving the magnetic field strengthen has been reported as of the order of O(0.8) T. This findings identify the regime where electron Filamentation instability is ongoing and provide valuable data for future exploration.
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource. |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2023; ©2023 |
| Publication date | 2023; 2023 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | You, Shanni |
|---|---|
| Degree committee member | Edwards, Matthew R. (Matthew Reid) |
| Thesis advisor | Edwards, Matthew R. (Matthew Reid) |
| Associated with | Stanford University, School of Engineering |
| Associated with | Stanford University, Department of Mechanical Engineering |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | Shanni (Mariam) You. |
|---|---|
| Note | Submitted to the Department of Mechanical Engineering. |
| Thesis | Thesis Engineering Stanford University 2023. |
| Location | https://purl.stanford.edu/nh717vd3360 |
Access conditions
- Copyright
- © 2023 by Shanni You
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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