SENSITIVITY OF EQUILIBRIUM PROFILE RECONSTRUCTION TO MOTIONAL STARK-EFFECT MEASUREMENTS

Authors
BATHA SH LEVINTON FM HIRSHMAN SP BELL MG WIELAND RM
Citation
Sh. Batha et al., SENSITIVITY OF EQUILIBRIUM PROFILE RECONSTRUCTION TO MOTIONAL STARK-EFFECT MEASUREMENTS, Nuclear fusion, 36(9), 1996, pp. 1133-1143
Citations number
24
Categorie Soggetti
Phsycs, Fluid & Plasmas","Physics, Nuclear
Journal title
Nuclear fusion → ACNP
ISSN journal
00295515
Volume
36
Issue
9
Year of publication
1996
Pages
1133 - 1143
Database
ISI
SICI code
0029-5515(1996)36:9<1133:SOEPRT>2.0.ZU;2-7
Abstract
The magnetic-field pitch-angle profile, gamma(p)(R) = tan(-1)(B-pol/B- tor), is measured on TFTR using a motional Stark effect (MSE) polarime ter. Measured pitch angle profiles, along with kinetic profiles and ex ternal magnetic measurements, are used to compute a self-consistent eq uilibrium using the free-boundary variational moments equilibrium code VMEC. Uncertainties in the q profile due to uncertainties in gamma(p) (R), magnetic measurements and kinetic measurements are Found to be sm all. Subsequent uncertainties in the VMEC-calculated current density a nd shear profiles are also small.