JET-EFDA ContributorsHalpern, F. D.Ricci, P.Labit, B.Furno, I.Jolliet, S.Loizu, J.Mosetto, A.Arnoux, G.Gunn, J. P.Horacek, J.Kocan, M.Labombard, B.Silva, C.2015-08-132015-08-132015-08-13201310.1088/0029-5515/53/12/122001https://infoscience.epfl.ch/handle/20.500.14299/117015A theory-based scaling for the characteristic length of a circular, limited tokamak scrape-off layer (SOL) is obtained by considering the balance between parallel losses and non-linearly saturated resistive ballooning mode turbulence driving anomalous perpendicular transport. The SOL size increases with plasma size, resistivity, and safety factor q. The scaling is verified against flux-driven non-linear turbulence simulations, which reveal good agreement within a wide range of dimensionless parameters, including parameters closely matching the TCV tokamak. An initial comparison of the theory against experimental data from several tokamaks also yields good agreement.CRPP_EDGEtext::journal::journal article::research article