The 0.8 MeV 3He ion created in the d(d,n) 3He fusion reaction is confined in TFTR and can undergo d(3He,p) α fusion reactions. The time evolution and profile of the 14.7 MeV proton emission indicate that collisional energy transfer with plasma electrons is the dominant process influencing the charged 3He fusion product for TFTR plasmas and that there is no observable anomalous transport. The magnitude of the burnup exceeds classical expectations by a factor of two to three, which is a little beyond experimental uncertainties.