activity
20172024
most citedResonance line broadened quasilinear (RBQ) model for fast ion distribution relaxation due to Alfvénic eigenmodes

30 citations · 81 across the 9 of their papers we have counts for

collaborators

9 papers

physics.plasm-ph2024

Design of a Thomson scattering diagnostic for the SMART tokamak

M. Kaur, A. Diallo, B. LeBlanc +8

We describe the design of a Thomson scattering (TS) diagnostic to be used on the SMall Aspect Ratio Tokamak (SMART). SMART is a spherical tokamak being commissioned in Spain that a…

physics.plasm-ph2022

Simultaneous measurements of unstable and stable Alfvén Eigenmodes in JET

R. A. Tinguely, J. Gonzalez-Martin, P. G. Puglia +13

In this paper, we report the novel experimental observation of both unstable and stable Toroidicity-induced Alfvén Eigenmodes (TAEs) measured simultaneously in a JET tokamak plasma…

physics.plasm-ph2022★ 11 cited

Thermal ion kinetic effects and Landau damping in fishbone modes

Chang Liu, Stephen C. Jardin, Jian Bao +4

The kinetic-MHD hybrid simulation approach for macroscopic instabilities in plasmas can be extended to include the kinetic effects of both thermal ions and energetic ions. The new…

physics.plasm-ph2022

Reduced Physics Model of the Tokamak Scrape-off-Layer for Pulse Design

X. Zhang, F. M. Poli, E. D. Emdee +1

The dynamic interplay between the core and the edge plasma has important consequences in the confinement and heating of fusion plasma. The transport of the Scrape-Off-Layer (SOL) p…

physics.plasm-ph2022

The hidden uncertainties in particle balance calculations and their implications for assessment of plasma performance

A. A. Teplukhina, F. M. Poli, M. Podesta +6

Predictive simulations of mixed plasma discharges, like deuterium-tritium plasmas, rely on self-consistent models for particle transport. These models have to be validated with int…

physics.comp-ph2019

Machine learning characterisation of Alfvénic and sub-Alfvénic chirping and correlation with fast ion loss at NSTX

Benjamin J. Q. Woods, Vinícius N. Duarte, Eric D. Fredrickson +3

Abrupt large events in the Alfvénic and sub-Alfvénic frequency bands in tokamaks are typically correlated with increased fast ion loss. Here, machine learning is used to speed up t…

physics.plasm-ph2018★ 30 cited

Resonance line broadened quasilinear (RBQ) model for fast ion distribution relaxation due to Alfvénic eigenmodes

Nikolai Gorelenkov, Vinicius Duarte, Mario Podesta +1

The burning plasma performance is limited by the confinement of the superalfvenic fusion products such as alpha particles and the auxiliary heating ions capable of exciting the Alf…

physics.plasm-ph2018★ 11 cited

Study of the likelihood of Alfvénic mode bifurcation in NSTX and predictions for ITER baseline scenarios

Vinicius Duarte, Nikolai Gorelenkov, Mirjam Schneller +3

Rare Alfvénic wave transitions between fixed-frequency and chirping phases are identified in NSTX, where Alfvénic waves are normally observed to exhibit either chirping or avalanch…

physics.plasm-ph2017★ 29 cited

Onset of nonlinear structures due to eigenmode destabilization in tokamak plasmas

Vinicius Duarte, Herbert Berk, Nikolai Gorelenkov +5

A general methodology is proposed to differentiate the likelihood of energetic-particle-driven instabilities to produce frequency chirping or fixed-frequency oscillations. The meth…