TY - GEN
T1 - The interaction between tearing modes and transport in plasmas
AU - James, M.
AU - Applegate, D. J.
AU - Connor, J. W.
AU - Wilson, H. R.
PY - 2008
Y1 - 2008
N2 - A sheared slab model of the plasma is employed to explore the interaction between tearing modes and transport. Two processes are considered. In the first we calculate the effect of the island on the electron density profile as a first step towards a self-consistent calculation of the polarisation current. In the second, we employ a reduced model for these profile effects to calculate the impact of the island on the stability of the ion temperature gradient mode. We find that while a local theory predicts that the island has a strong stabilising influence, the more complete global WKB theory predicts the existence of new, localised, unstable modes that are not permitted in the absence of the island.
AB - A sheared slab model of the plasma is employed to explore the interaction between tearing modes and transport. Two processes are considered. In the first we calculate the effect of the island on the electron density profile as a first step towards a self-consistent calculation of the polarisation current. In the second, we employ a reduced model for these profile effects to calculate the impact of the island on the stability of the ion temperature gradient mode. We find that while a local theory predicts that the island has a strong stabilising influence, the more complete global WKB theory predicts the existence of new, localised, unstable modes that are not permitted in the absence of the island.
UR - https://www.scopus.com/pages/publications/84873025517
M3 - Conference contribution
AN - SCOPUS:84873025517
SN - 9781622763351
T3 - 35th EPS Conference on Plasma Physics 2008, EPS 2008 - Europhysics Conference Abstracts
SP - 1470
EP - 1473
BT - 35th EPS Conference on Plasma Physics 2008, EPS 2008 - Europhysics Conference Abstracts
T2 - 35th European Physical Society Conference on Plasma Physics, EPS 2008 Combined with the 10th International Workshop on Fast Ignition of Fusion Targets
Y2 - 9 June 2008 through 13 June 2008
ER -