R. N. Chandra
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View article: Technology readiness assessment of magnetohydrodynamic stability control
Technology readiness assessment of magnetohydrodynamic stability control Open
The technology readiness level scale is revised with clear definitions for magnetohydrodynamic stability control technologies for magnetic confinement fusion. The definitions are in the form of a sentence with three dimensions, which are t…
View article: Simulations of saturated MHD activity in the HBT-EP tokamak
Simulations of saturated MHD activity in the HBT-EP tokamak Open
The NIMROD code is used to perform simulations of MHD activity in the HBT-EP tokamak, including the effect of a resistive wall. Linear simulations are conducted to scan current and pressure profiles to establish self-consistent baseline eq…
View article: MANTA: a negative-triangularity NASEM-compliant fusion pilot plant
MANTA: a negative-triangularity NASEM-compliant fusion pilot plant Open
The MANTA (Modular Adjustable Negative Triangularity ARC-class) design study investigated how negative-triangularity (NT) may be leveraged in a compact, fusion pilot plant (FPP) to take a ‘power-handling first’ approach. The result is a pu…
View article: An optical-input Maximum Likelihood Estimation feedback system demonstrated on tokamak horizontal equilibrium control
An optical-input Maximum Likelihood Estimation feedback system demonstrated on tokamak horizontal equilibrium control Open
View article: Improvements to the ion Doppler spectrometer diagnostic on the HIT-SI experiments
Improvements to the ion Doppler spectrometer diagnostic on the HIT-SI experiments Open
An ion Doppler spectrometer diagnostic system measuring impurity ion temperature and velocity on the HIT-SI and HIT-SI3 spheromak devices has been improved with higher spatiotemporal resolution and lower error than previously described dev…
View article: Validation of extended magnetohydrodynamic simulations of the HIT-SI3 experiment using the NIMROD code
Validation of extended magnetohydrodynamic simulations of the HIT-SI3 experiment using the NIMROD code Open
The HIT-SI3 experiment uses a set of inductively driven helicity injectors to apply a non-axisymmetric current drive on the edge of the plasma, driving an axisymmetric spheromak equilibrium in a central confinement volume. These helicity i…