The study of the detached plasma regime in TFTR using the MIRI far infrared interferometer

This paper discusses how plasmas have been formed in TFTR which separate completely from the limiter and are called detached plasmas. The physical evidence for the separation from the limiter is that all the ohmic input power is radiated away at the plasma boundary which can be 10→30 cm inside the limiter. The 10 chord multichannel MIRI interferometer system has been used to diagnose this region and follows the formation of the detached state through a MARFE. MIRI indicates that a plasma ∼0.5→1 x 1013 cm-3 occurs in the region between the luminous boundary and the limiter