First results from the new diagnostic neutral beam injector and charge-exchange diagnostic system on the TJ-II stellarator

radius !0.22 m and major radius of 1.5 m whose magnetic configurations are created by a system of external field coils [1]. It is designed to explore a wide range of rotational transforms (0.9!!(0)/2∀!2.2) in low shear configurations (#q/q<-6% in vacuum). To date, central electron densities and temperatures up to 1.7∃10 19 m -3 and 2 keV respectively have been achieved in plasmas created and maintained by electron cyclotron resonance heating