activity
20232026
most citedKinetic-Ballooning-Limited Pedestals in Spherical Tokamak Plasmas

24 citations · 42 across the 4 of their papers we have counts for

collaborators

5 papers

physics.plasm-ph2026

Theory of Equivalent Tokamaks for Characterizing Turbulent Transport in Quasi-symmetric Stellarators

Hongxuan Zhu, R. Gaur, X. Wei +2

It is well known that quasi-symmetric (QS) stellarators are isomorphic to tokamaks in terms of their neoclassical-transport properties, and the corresponding transport coefficients…

physics.plasm-ph2024

Effect of insulator end cap thickness on time-dependent Hartmann flow in a rotating mirror

Rahul Gaur, Ian G. Abel, Bindesh Tripathi +1

We present a framework for analyzing plasma flow in a rotating mirror. By making a series of physical assumptions, we reduce the magnetohydrodynamic (MHD) equations in a three-dime…

physics.plasm-ph2024

Stability and Transport of Gyrokinetic Critical Pedestals

J. F. Parisi, A. O. Nelson, W. Guttenfelder +11

A gyrokinetic threshold model for pedestal width-height scaling prediction is applied to multiple devices and to a shaping and aspect-ratio scan giving $Δ_{\mathrm{ped}} = 0.92 A^{…

physics.plasm-ph2023★ 18 cited

Kinetic-Ballooning-Bifurcation in Tokamak Pedestals Across Shaping and Aspect-Ratio

J. F. Parisi, A. O. Nelson, R. Gaur +16

We use a new gyrokinetic threshold model to predict a bifurcation in tokamak pedestal width-height scalings that depends strongly on plasma shaping and aspect-ratio. The bifurcatio…

physics.plasm-ph2023★ 24 cited

Kinetic-Ballooning-Limited Pedestals in Spherical Tokamak Plasmas

J. F. Parisi, W. Guttenfelder, A. O. Nelson +12

A theoretical model is presented that for the first time matches experimental measurements of the pedestal width-height Diallo scaling in the low-aspect-ratio high- tokamak NSTX…