NSTX Research By Stefan Gerhardt

Disruptions

Characterization of the Plasma Current Quench During Disruptions in the National Spherical Torus Experiment, S.P. Gerhardt and J.E. Menard, submitted to Nuclear Fusion. .pdf , .doc ,

Upgraded Halo Current Measurements For the 2008 Run Campaign. .pdf
Overview of Recent Disruptions Studies, presented at the August 2008 NSTX Results Review .pdf

Error Fields

Measurements and Correction of non-resonant error fields during the 2007 & 2008 NSTX run campaigns. .pdf

Neoclassical Tearing Modes

Letter Length, S.P. Gerhardt, et al., .pdf , .doc ,
Full Length Paper, S.P. Gerhardt, et al., .pdf , .doc ,
Overview of 2/1 NTM Studies in NSTX, presented at the 2008 APS/DPP Meeting .pdf

NSTX Diagnostic and Infrasructure Peer Reviews

LLD 2-D OBD Mirnov Replacement , Sept. 2008
LLD Center-Post Rogowski , Sept. 2008
Tile Halo Current Measurements , Sept. 2008 Addendum , Oct. 2008


NSTX PCS Documentation

The SMF Algorithm, used for DEFC and RWM feedback
The Mode-ID Algorithm, used for detecting n=1 modes, as input for feedback
The NBI feedback Algorithm, used for feedback control of the NBI power,






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