3 papers
physics.plasm-ph2026
Axisymmetric reduction of the adjoint operator in ideal MHD equilibrium
Fumiya Tanji, Akinobu Matsuyama, Akio Sanpei +3
Adjoint formulations of magnetohydrodynamic (MHD) equilibrium are presented for sensitivity analysis and optimization-based equilibrium calculations. We derive the adjoint of the t…
physics.plasm-ph2020
The effect of toroidicity on relaxed states at low aspect ratio
R. Paccagnella, S. Masamune, I. Predebon +1
The experimentally measured single helical states in the low aspect ratio (R/a=2) RELAX device have been compared with the predictions of a cylindrical relaxation theory and a subs…
physics.plasm-ph2018
Relaxation models for Single Helical reversed field pinch plasmas at low aspect ratio
R. Paccagnella, S. Masamune, A. Sanpei
A recent study [1] about the scaling with the aspect ratio (i.e. the ratio between the major and minor radius of the torus) of the dominant mode in Single Helical (SH) Reverse Fiel…