Studying the Saturation of Turbulent Small-Scale Dynamo Using HED Plasma Plumes

We present the latest results from the Omega-EP experiments on demonstrating the small-scale turbulent dynamo, using a cone design (Liao et al. 2019). Using diagnostics including a $4\omega$ laser beamline for angular filter refractometry and a sheath-accelerated proton beamline for deflectometry, we are able to reliably measure the hydrodynamics and magnetic field of the target plasma and observe the turbulent dynamo over a few nanoseconds of activity across two orders of magnitude in spatial scales between tens of micron and $\sim$ mm. Based on these results, we suggest a new type of experiments on NIF where the plasma volume with dynamo action can be larger and much longer lived. This enables the analysis as the small-scale turbulent dynamo reaches its saturation stage.