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A new Gas Puff Imaging (GPI) diagnostic has been installed on the TCVtokamak, providing two-dimensional insights into Scrape-Off-Layer (SOL)turbulence dynamics above, at and below the magnetic X-point. A detailed studyin L-mode, attached, lower single-null discharges shows that statisticalproperties have little poloidal variations, while vast differences are presentin the 2D behaviour of intermittent filaments. Strongly elongated filaments,just above the X-point and in the divertor far-SOL, show a good consistency inshape and dynamics with field-line tracing from filaments at the outboardmidplane, highlighting their connection. In the near-SOL of the outer divertorleg, shortlived, high frequency and more circular (diameter $\sim$15 soundLarmour radii) filaments are observed. These divertor-localised filamentsappear born radially at the position of maximum density and display a radiallyoutward motion with velocity $\approx$400\,m/s that is comparable to radialvelocities of upstream-connected filaments. Conversely, in these discharges($B\times\nabla B$ pointing away from the divertor), these divertor filaments'poloidal velocities differ strongly from those of upstream-connected filaments.The importance of divertor-localised filaments upon radial transport andprofile broadening is explored using filament statistics and in-situ kineticprofile measurements along the divertor leg. This provides evidence that thesefilaments contribute significantly to electron density profile broadening inthe divertor.

X-point and divertor filament dynamics from Gas Puff Imaging on TCV