  Using detailed spectroscopic measurements, highly-resolved in both time and
space, a self-generated plasma rotation is demonstrated for the first time in a
cylindrical Z-pinch implosion with a pre-embedded axial magnetic field. The
plasma parameters and all three components of the magnetic field are resolved.
The plasma is seen to rotate at a velocity comparable to the peak implosion
velocity, considerably affecting the force and energy balance throughout the
implosion. Moreover, the evolution of the rotation is consistent with magnetic
flux surface isorotation, a novel observation in a Z-pinch.
