Edge Temperature Gradient as Intrinsic Rotation Drive in Alcator -Mod Tokamak Plasmas
Physical review letters, 2011•APS
Intrinsic rotation has been observed in I-mode plasmas from the C-Mod tokamak, and is
found to be similar to that in H mode, both in its edge origin and in the scaling with global
pressure. Since both plasmas have similar edge∇ T, but completely different edge∇ n, it
may be concluded that the drive of the intrinsic rotation is the edge∇ T rather than∇ P.
Evidence suggests that the connection between gradients and rotation is the residual stress,
and a scaling for the rotation from conversion of free energy to macroscopic flow is …
found to be similar to that in H mode, both in its edge origin and in the scaling with global
pressure. Since both plasmas have similar edge∇ T, but completely different edge∇ n, it
may be concluded that the drive of the intrinsic rotation is the edge∇ T rather than∇ P.
Evidence suggests that the connection between gradients and rotation is the residual stress,
and a scaling for the rotation from conversion of free energy to macroscopic flow is …
Intrinsic rotation has been observed in -mode plasmas from the -Mod tokamak, and is found to be similar to that in mode, both in its edge origin and in the scaling with global pressure. Since both plasmas have similar edge , but completely different edge , it may be concluded that the drive of the intrinsic rotation is the edge rather than . Evidence suggests that the connection between gradients and rotation is the residual stress, and a scaling for the rotation from conversion of free energy to macroscopic flow is calculated.
American Physical Society