Characterization of TFTR shielding penetrations of ITER relevance in D-T neutron field

Measurements of TFTR D-T radiation shielding efficiency

“…Using this value gives a gamma D-T to D-D dose ratio of 0.91 which is of order the simulation result at the inner walls [5]. Neutron dose-equivalent measurements using activation foils on the Test Cell walls are in progress and preliminary results will be reported elsewhere [6].…”