Hamiltonian estimation of island width threshold for stochasticity onset on edge pedestal top in presence of a resonant magnetic perturbation
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , |
|---|---|
| Format: | Preprint |
| Publié: |
2025
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866908600696307712 |
|---|---|
| author | Gui, Zhifei Zhu, Ping Escande, Dominique Franck |
| author_facet | Gui, Zhifei Zhu, Ping Escande, Dominique Franck |
| contents | This study applies the Hamiltonian method to analyze the nonlinear magnetic topology induced by Resonant Magnetic Perturbations (RMPs) in tokamaks. We investigate the system's chaotic behavior by comparing three methods: the renormalization method, Lyapunov exponents (LE), and weighted Birkhoff average (WBA). A strong consistency is found among these methods in predicting the large scale stochasticity threshold. The magnetic island width threshold provides a quantitative criterion for optimizing RMP-based ELM control, bridging a critical gap in plasma control strategies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_16361 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hamiltonian estimation of island width threshold for stochasticity onset on edge pedestal top in presence of a resonant magnetic perturbation Gui, Zhifei Zhu, Ping Escande, Dominique Franck Plasma Physics This study applies the Hamiltonian method to analyze the nonlinear magnetic topology induced by Resonant Magnetic Perturbations (RMPs) in tokamaks. We investigate the system's chaotic behavior by comparing three methods: the renormalization method, Lyapunov exponents (LE), and weighted Birkhoff average (WBA). A strong consistency is found among these methods in predicting the large scale stochasticity threshold. The magnetic island width threshold provides a quantitative criterion for optimizing RMP-based ELM control, bridging a critical gap in plasma control strategies. |
| title | Hamiltonian estimation of island width threshold for stochasticity onset on edge pedestal top in presence of a resonant magnetic perturbation |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2510.16361 |