Relationship of SOL turbulence to SOL width in Alcator C-Mod

Measurements of SOL turbulence in Alcator C-Mod show a strong variation with poloidal angle [1], therefore it is likely this variation will affect the SOL width. The poloidal variation of the SOL turbulence will be measured as a function of the SOL collisionality, plasma shape, and normalized gyroradius, and the results will be compared with theoretical models for these variations. The radial transport due to the SOL turbulence will be estimated from the radial propagation and correlation length at each poloidal angle, and the results will be compared with the local temperature/density SOL widths measured by Langmuir probes and D$_{\alpha}$ emission. The expected relationship between these local SOL widths and the total heat flux SOL width at the divertor plate will be discussed.\\[4pt] [1] J.L. Terry, S.J. Zweben et al, J. Nucl. Mat. 390-391, 339 (2009)