System for temperature and power flux measurements on the RFX first wall

A thermal imaging system has been installed on the RFX at Consorzio RFX to investigate the phenomenology of the plasma wall interactions. The infrared camera, model Amber AE4128, is based on a 128×128 InSb focal plane array detector and operates in the range of 4.5-5 ?m with an acquisition rate of 217 Hz and 12 bit of dynamic range. The system, absolutely calibrated, is sensitive from room temperature up to 3000 °C, with different setups. The experimental data are compared with the numerical results obtained by means of transient thermal analyses carried out on analytical and finite element models of a graphite tile.