UKAEA Journals

Showing 1 - 2 of 2 Journals Results
2019
UKAEA-CCFE-PR(19)34
"Reduced-model framework supporting direct induction startup scenario development for MAST-U and NSTX-U"

D.J. Battaglia S.P. Gerhardt A. Kirk L. Kogan J.E. Menard D. Mueller A.J. Thornton

Reduced models coupled to time-dependent axisymmetric vacuum field calculations are used to develop the prefill and feed-forward coil current targets required for reliable direct induction (DI) startup on the new MA-class spherical tokamaks, MAST-U and NSTX-U. The calculations are constrained by operational limits unique to each device, such as the…

Preprint Published
2004
"First mirror contamination studies for polarimetry motional Stark effect measurements for ITER"

M. Kuldkepp E. Rachlew N. C. Hawkes B. Schunke

The motional Stark effect ( MSE ) diagnostic on the International Thermonuclear Experimental Reactor will need to guide the light through a labyrinth of mirrors to provide neutron shielding. Knowledge of how the mirrors change the polarization is essential for accurate determination of the q profile. The optical properties of the plasma facing mirr…

Published