Abstract
A multi-channel version of the multi foil thermal detector (MFTD) prototype has been developed and tested at the FNL ion accelerator in Tohoku University, which uses an imaging bolometer as a thermal sensor and 2-dimensional set of the foils with the different thicknesses as an energy discriminator for alphas. A Phoenix IR camera from FLIR Systems had been used for monitoring the temperature profile variations under the ion beam irradiation. The results obtained showed that the tested foils are applicable for the MFTD design.