Fig. 3: Experimental setup.
From: Evidence of entropy cascade in collisionless magnetized plasma turbulence
a Schematic diagram of the MPX plasma device including diagnostic systems. b System diagram of RIDFP (Ring-averaged ion velocity distribution function probe). c Schematic of the orbit filters and collector of the incoming gyrating ions. d Examples of equilibrium ring-averaged ion velocity distribution functions F0 at a fixed guiding center position for the background magnetic field strength B0 = 0.022 T and B0 = 0.033 T, respectively. The red solid curves indicate Maxwellian having the temperature of 0.1 eV. Shrink of orbits of the ions (Larmor radii) for the B0 change from 0.022 T to 0.033 T can be clearly observed, indicating validity of RIDFP measurement.
